{"id":5015,"date":"2026-01-31T15:00:00","date_gmt":"2026-01-31T06:00:00","guid":{"rendered":"https:\/\/www.ramxeed.com\/jp\/?post_type=column&#038;p=5015"},"modified":"2026-01-30T14:28:59","modified_gmt":"2026-01-30T05:28:59","slug":"nvm-selection-for-taxi-meters","status":"publish","type":"column","link":"https:\/\/www.ramxeed.com\/jp\/tech-column\/nvm-selection-for-taxi-meters\/","title":{"rendered":"\u30bf\u30af\u30b7\u30fc\u30e1\u30fc\u30bf\u30fc\u8a2d\u8a08\u306b\u304a\u3051\u308b\u4e0d\u63ee\u767a\u6027\u30e1\u30e2\u30ea\u9078\u5b9a\u30ac\u30a4\u30c9 \u2014 EEPROM \/ FRAM \/ nvSRAM \u306e\u6bd4\u8f03\u3068\u5b9f\u88c5\u4e8b\u4f8b"},"content":{"rendered":"\n<p>\u30bf\u30af\u30b7\u30fc\u30e1\u30fc\u30bf\u30fc\u8a2d\u8a08\u306b\u304a\u3051\u308b\u4e0d\u63ee\u767a\u6027\u30e1\u30e2\u30ea\u9078\u5b9a\uff08EEPROM\/FRAM\/nvSRAM\uff09\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002\u983b\u7e41\u306a\u66f8\u304d\u8fbc\u307f\u3078\u306e\u8010\u4e45\u6027\u3084\u96fb\u6e90\u65ad\u6642\u306e\u30c7\u30fc\u30bf\u4fdd\u8b77\u3001\u8eca\u8f09\u74b0\u5883\u3067\u306e\u4fe1\u983c\u6027\u78ba\u4fdd\u306a\u3069\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u8003\u616e\u3059\u3079\u304d\u5b9f\u88c5\u306e\u8981\u70b9\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u30bf\u30af\u30b7\u30fc\u30e1\u30fc\u30bf\u30fc\u306e\u57fa\u672c\u8a2d\u8a08\u3068\u30e1\u30e2\u30ea\u8981\u4ef6<\/strong><\/h2>\n\n\n\n<p>\u30bf\u30af\u30b7\u30fc\u30e1\u30fc\u30bf\u30fc\u306f\u3001\u5358\u306a\u308b\u8ddd\u96e2\u8a08\u6e2c\u5668\u3067\u306f\u306a\u304f\u3001\u91d1\u92ad\u53d6\u5f15\u306e\u6839\u62e0\u3068\u306a\u308b\u300c\u7279\u5b9a\u8a08\u91cf\u5668\u300d\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u305d\u306e\u56de\u8def\u8a2d\u8a08\u306b\u306f\u4e00\u822c\u7684\u306a\u8eca\u8f09\u96fb\u5b50\u6a5f\u5668\u4ee5\u4e0a\u306e\u5805\u7262\u6027\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u3002\u7279\u306b\u3001\u8eca\u4e21\u306e\u30a4\u30b0\u30cb\u30c3\u30b7\u30e7\u30f3OFF\u3084\u30d0\u30c3\u30c6\u30ea\u30fc\u4e0a\u304c\u308a\u304c\u65e5\u5e38\u7684\u306b\u767a\u751f\u3059\u308b\u74b0\u5883\u4e0b\u3067\u3001\u8ab2\u91d1\u30c7\u30fc\u30bf\u3092\u7d76\u5bfe\u306b\u30ed\u30b9\u30c8\u3057\u306a\u3044\u305f\u3081\u306e\u30e1\u30e2\u30ea\u30b5\u30d6\u30b7\u30b9\u30c6\u30e0\u8a2d\u8a08\u306f\u3001\u88fd\u54c1\u306e\u4fe1\u983c\u6027\u3092\u6c7a\u5b9a\u3065\u3051\u308b\u6700\u3082\u91cd\u8981\u306a\u8981\u7d20\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u30bf\u30af\u30b7\u30fc\u30e1\u30fc\u30bf\u30fc\u306e\u57fa\u672c\u6a5f\u80fd\u3068\u30b7\u30b9\u30c6\u30e0\u69cb\u6210<\/strong><\/h3>\n\n\n\n<p>\u30bf\u30af\u30b7\u30fc\u30e1\u30fc\u30bf\u30fc\u306e\u30b3\u30a2\u6a5f\u80fd\u306f\u3001\u8eca\u901f\u30d1\u30eb\u30b9\u3068\u6642\u9593\u60c5\u5831\u3092\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u306b\u7a4d\u7b97\u3057\u3001\u8907\u96d1\u306a\u6599\u91d1\u30c6\u30fc\u30d6\u30eb\uff08\u521d\u4e57\u308a\u3001\u52a0\u7b97\u3001\u6df1\u591c\u5272\u5897\u306a\u3069\uff09\u3068\u7167\u5408\u3057\u3066\u904b\u8cc3\u3092\u7b97\u51fa\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u30b7\u30b9\u30c6\u30e0\u306f\u4e3b\u306bMCU\u3001\u8868\u793a\u30c9\u30e9\u30a4\u30d0\u3001\u30d7\u30ea\u30f3\u30bf\u5236\u5fa1\u3001\u305d\u3057\u3066\u5916\u90e8\u901a\u4fe1\uff08\u914d\u8eca\u30a2\u30d7\u30ea\u9023\u643a\u306a\u3069\uff09\u3067\u69cb\u6210\u3055\u308c\u307e\u3059\u3002\u3053\u3053\u3067\u91cd\u8981\u3068\u306a\u308b\u306e\u304c\u3001\u96fb\u6e90\u65ad\u76f4\u524d\u306e\u300c\u30e9\u30b9\u30c8\u30ef\u30f3\u30de\u30a4\u30eb\u300d\u306a\u3089\u306c\u300c\u30e9\u30b9\u30c8\u30ef\u30f3\u30ab\u30a6\u30f3\u30c8\u300d\u306e\u4fdd\u5b58\u3067\u3059\u3002\u30b7\u30b9\u30c6\u30e0\u30ea\u30bb\u30c3\u30c8\u3084\u77ac\u505c\u304c\u767a\u751f\u3057\u3066\u3082\u3001\u518d\u8d77\u52d5\u5f8c\u306b\u524d\u56de\u306e\u904b\u8cc3\u3068\u8ddd\u96e2\u3092\u5b8c\u5168\u306b\u5fa9\u5143\u3067\u304d\u308b\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u304c\u5fc5\u9808\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u6cd5\u4ee4\u30fb\u8a08\u91cf\u898f\u683c\u304b\u3089\u6c42\u3081\u3089\u308c\u308b\u30e1\u30e2\u30ea\u8981\u4ef6<\/strong><\/h3>\n\n\n\n<p>\u30bf\u30af\u30b7\u30fc\u30e1\u30fc\u30bf\u30fc\u306f\u8a08\u91cf\u6cd5\u306b\u57fa\u3065\u304d\u3001\u691c\u5b9a\u306b\u5408\u683c\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306b\u306f\u300c\u4e0d\u63ee\u767a\u6027\u30e1\u30e2\u30ea\u3078\u306e\u30c7\u30fc\u30bf\u4fdd\u5b58\u6a5f\u80fd\u300d\u306b\u95a2\u3059\u308b\u53b3\u683c\u306a\u8981\u4ef6\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u904b\u8cc3\u4fc2\u6570\uff08K\u5024\uff09\u3084\u30bf\u30ea\u30d5\uff08\u6599\u91d1\u8a2d\u5b9a\uff09\u30c7\u30fc\u30bf\u306f\u3001\u30ce\u30a4\u30ba\u3084\u8aa4\u52d5\u4f5c\u306b\u3088\u3063\u3066\u30d3\u30c3\u30c8\u5316\u3051\u3092\u8d77\u3053\u3057\u3066\u306f\u306a\u3089\u305a\u3001\u304b\u3064\u610f\u56f3\u3057\u306a\u3044\u66f8\u304d\u63db\u3048\u3092\u9632\u3050\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6a5f\u80fd\u3082\u6c42\u3081\u3089\u308c\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u30e1\u30e2\u30ea\u9078\u5b9a\u306b\u304a\u3044\u3066\u306f\u3001\u5358\u306a\u308b\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u4e0a\u306e\u30b9\u30da\u30c3\u30af\u3060\u3051\u3067\u306a\u304f\u3001ECC\uff08\u30a8\u30e9\u30fc\u8a02\u6b63\u7b26\u53f7\uff09\u306e\u6709\u7121\u3084\u3001\u66f8\u8fbc\u30d7\u30ed\u30c6\u30af\u30c8\u6a5f\u80fd\u306e\u5b9f\u88c5\u3057\u3084\u3059\u3055\u3082\u8a55\u4fa1\u57fa\u6e96\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u64cd\u4f5c\u30ed\u30b0\u30fb\u6599\u91d1\u30c7\u30fc\u30bf\u4fdd\u5b58\u306e\u5fc5\u9808\u6027\u3068\u4e0d\u63ee\u767a\u6027\u30e1\u30e2\u30ea\u306e\u5f79\u5272<\/strong><\/h3>\n\n\n\n<p>\u8fd1\u5e74\u306f\u3001\u904b\u884c\u7ba1\u7406\u306e\u30c7\u30b8\u30bf\u30eb\u5316\u306b\u4f34\u3044\u3001\u5358\u306a\u308b\u58f2\u4e0a\u5408\u8a08\u3060\u3051\u3067\u306a\u304f\u3001\u300c\u3044\u3064\u3001\u3069\u3053\u3067\u3001\u7a7a\u8eca\u304b\u3089\u5b9f\u8eca\u306b\u5909\u308f\u3063\u305f\u304b\u300d\u3068\u3044\u3063\u305f\u8a73\u7d30\u306a\u64cd\u4f5c\u30ed\u30b0\u306e\u4fdd\u5b58\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u904b\u8cc3\u30c7\u30fc\u30bf\uff08\u6bd4\u8f03\u7684\u9759\u7684\uff09\u3068\u306f\u7570\u306a\u308a\u3001\u983b\u7e41\u306a\u66f8\u304d\u8fbc\u307f\uff08\u52d5\u7684\uff09\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002\u66f8\u304d\u63db\u3048\u983b\u5ea6\u306e\u9ad8\u3044\u30ed\u30b0\u30c7\u30fc\u30bf\u3068\u3001\u66f8\u304d\u63db\u3048\u983b\u5ea6\u306f\u4f4e\u3044\u304c\u7d76\u5bfe\u7684\u306a\u4fdd\u5168\u304c\u5fc5\u8981\u306a\u8a2d\u5b9a\u30c7\u30fc\u30bf\u3092\u3001\u3069\u306e\u3088\u3046\u306b\u30e1\u30e2\u30ea\u30de\u30c3\u30d7\u4e0a\u3067\u914d\u7f6e\u3057\u3001\u3069\u306e\u30c7\u30d0\u30a4\u30b9\u306b\u5272\u308a\u5f53\u3066\u308b\u304b\u304c\u8a2d\u8a08\u8005\u306e\u8155\u306e\u898b\u305b\u6240\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u4e0d\u63ee\u767a\u6027\u30e1\u30e2\u30ea\u306e\u7a2e\u985e\u3068\u7279\u5fb4\u6bd4\u8f03<\/strong><\/h2>\n\n\n\n<p>\u30bf\u30af\u30b7\u30fc\u30e1\u30fc\u30bf\u30fc\u8a2d\u8a08\u306b\u304a\u3044\u3066\u5019\u88dc\u3068\u306a\u308b\u4e0d\u63ee\u767a\u6027\u30e1\u30e2\u30ea\u306b\u306f\u3001EEPROM\u3001nvSRAM\u3001\u305d\u3057\u3066FRAM\uff08FeRAM\u3001\u5f37\u8a98\u96fb\u4f53\u30e1\u30e2\u30ea\uff09\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u300c\u66f8\u304d\u8fbc\u307f\u901f\u5ea6\u300d\u300c\u8010\u4e45\u6027\u300d\u300c\u30b3\u30b9\u30c8\u300d\u306e\u30c8\u30e9\u30a4\u30a2\u30f3\u30b0\u30eb\u306e\u4e2d\u3067\u7570\u306a\u308b\u7279\u6027\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>EEPROM\/Flash \u306e\u57fa\u672c\u7279\u6027\u3068\u8a2d\u8a08\u4f8b<\/strong><\/h3>\n\n\n\n<p>EEPROM\u306f\u6700\u3082\u5b89\u4fa1\u3067\u4e00\u822c\u7684\u306a\u9078\u629e\u80a2\u3067\u3059\u304c\u3001\u66f8\u304d\u8fbc\u307f\u306b\u6570\u30df\u30ea\u79d2\uff085ms\u301c10ms\uff09\u306e\u6642\u9593\u3092\u8981\u3057\u3001\u66f8\u304d\u63db\u3048\u56de\u6570\u306b\u5236\u9650\uff08\u901a\u5e3810\u4e07\u56de\u301c100\u4e07\u56de\uff09\u304c\u3042\u308a\u307e\u3059\u3002\u30bf\u30af\u30b7\u30fc\u30e1\u30fc\u30bf\u30fc\u306b\u304a\u3044\u3066\u3001\u30bf\u30ea\u30d5\u30c7\u30fc\u30bf\u3084\u8eca\u4e21\u5b9a\u6570\u306a\u3069\u306e\u300c\u8aad\u307f\u51fa\u3057\u4e3b\u4f53\u306e\u30c7\u30fc\u30bf\u300d\u306b\u306f\u6700\u9069\u3067\u3059\u304c\u3001\u8d70\u884c\u4e2d\u306b\u5e38\u306b\u66f4\u65b0\u3055\u308c\u308b\u8ddd\u96e2\u30ab\u30a6\u30f3\u30bf\u3084\u904b\u8cc3\u30c7\u30fc\u30bf\u306e\u4fdd\u5b58\u306b\u306f\u4e0d\u5411\u304d\u3067\u3059\u3002\u3053\u308c\u3089\u306bEEPROM\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u3001\u96fb\u6e90\u65ad\u691c\u51fa\u6642\u306b\u5927\u5bb9\u91cf\u30b3\u30f3\u30c7\u30f3\u30b5\u3067\u30db\u30fc\u30eb\u30c9\u30a2\u30c3\u30d7\u6642\u9593\u3092\u7a3c\u3050\u56de\u8def\u8a2d\u8a08\u3084\u3001\u66f8\u304d\u8fbc\u307f\u56de\u6570\u3092\u5206\u6563\u3055\u305b\u308b\u30a6\u30a7\u30a2\u30ec\u30d9\u30ea\u30f3\u30b0\u51e6\u7406\u304c\u5fc5\u9808\u3068\u306a\u308a\u3001BOM\u30b3\u30b9\u30c8\u3084\u30bd\u30d5\u30c8\u958b\u767a\u5de5\u6570\u304c\u5897\u52a0\u3059\u308b\u8981\u56e0\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>nvSRAM \u306e\u9ad8\u901f\u6027\u3068\u30c7\u30fc\u30bf\u4fdd\u6301\u306e\u7279\u5fb4<\/strong><\/h3>\n\n\n\n<p>nvSRAM\uff08Non-volatile SRAM\uff09\u306f\u3001SRAM\u306e\u9ad8\u901f\u6027\u3068\u4e0d\u63ee\u767a\u6027\u3092\u878d\u5408\u3055\u305b\u305f\u30c7\u30d0\u30a4\u30b9\u3067\u3059\u3002\u901a\u5e38\u6642\u306fSRAM\u3068\u3057\u3066\u52d5\u4f5c\u3057\u3001\u96fb\u6e90\u65ad\u3092\u691c\u77e5\u3059\u308b\u3068\u81ea\u52d5\u7684\u306b\u5185\u90e8\u306e\u4e0d\u63ee\u767a\u6027\u7d20\u5b50\u3078\u30c7\u30fc\u30bf\u3092\u9000\u907f\u3057\u307e\u3059\u3002\u66f8\u304d\u8fbc\u307f\u56de\u6570\u306e\u5236\u9650\u304c\u306a\u304f\u3001\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u30ab\u30a6\u30f3\u30bf\u306e\u4fdd\u5b58\u306b\u306f\u7406\u60f3\u7684\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u591a\u304f\u306envSRAM\u88fd\u54c1\u306f\u30c7\u30fc\u30bf\u4fdd\u6301\u306e\u305f\u3081\u306b\u5916\u90e8\u30d0\u30c3\u30c6\u30ea\u30fc\u3084\u30ad\u30e3\u30d1\u30b7\u30bf\u3092\u5fc5\u8981\u3068\u3059\u308b\u304b\u3001\u3042\u308b\u3044\u306f\u7279\u6b8a\u306a\u30d1\u30c3\u30b1\u30fc\u30b8\u3067\u3042\u308b\u305f\u3081\u3001\u5b9f\u88c5\u9762\u7a4d\u3084\u9577\u671f\u7684\u306a\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u6027\uff08\u96fb\u6c60\u5207\u308c\u30ea\u30b9\u30af\u306a\u3069\uff09\u306e\u9762\u3067\u8ab2\u984c\u304c\u6b8b\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u6b21\u4e16\u4ee3 \u4e0d\u63ee\u767a\u6027\u30e1\u30e2\u30ea\uff08FRAM\/MRAM\/ReRAM\uff09\u306e\u7279\u9577\u3068\u7528\u9014<\/strong><\/h3>\n\n\n\n<p>FRAM\uff08\u5f37\u8a98\u96fb\u4f53\u30e1\u30e2\u30ea\uff09\u3084MRAM\u306f\u3001EEPROM\u306e\u3088\u3046\u306a\u4f7f\u3044\u52dd\u624b\u3067\u3001SRAM\u4e26\u307f\u306e\u66f8\u304d\u8fbc\u307f\u901f\u5ea6\u3068\u9ad8\u8010\u4e45\u6027\uff0810\u5146\u56de\u4ee5\u4e0a\u306e\u66f8\u304d\u63db\u3048\uff09\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002\u7279\u306bFRAM\u306f\u3001\u66f8\u304d\u8fbc\u307f\u6642\u9593\u304c\u30ca\u30ce\u79d2\u30aa\u30fc\u30c0\u30fc\u3067\u3042\u308b\u305f\u3081\u3001\u96fb\u6e90\u906e\u65ad\u6642\u306e\u300c\u30c7\u30fc\u30bf\u9000\u907f\u6642\u9593\u300d\u3092\u6975\u5c0f\u5316\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u30b3\u30f3\u30c7\u30f3\u30b5\u3092\u5c0f\u578b\u5316\u3001\u3042\u308b\u3044\u306f\u5ec3\u6b62\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002\u30bf\u30af\u30b7\u30fc\u30e1\u30fc\u30bf\u30fc\u306e\u3088\u3046\u306b\u3001\u5e38\u306b\u30ab\u30a6\u30f3\u30bf\u3092\u66f4\u65b0\u3057\u7d9a\u3051\u308b\u6a5f\u5668\u306b\u304a\u3044\u3066\u3001\u66f8\u304d\u63db\u3048\u5bff\u547d\u3092\u6c17\u306b\u305b\u305a\u3001\u304b\u3064\u30d0\u30c3\u30c6\u30ea\u30fc\u30ec\u30b9\u3067\u30c7\u30fc\u30bf\u3092\u4fdd\u6301\u3067\u304d\u308b\u3053\u308c\u3089\u306e\u6b21\u4e16\u4ee3\u30e1\u30e2\u30ea\u306f\u3001\u73fe\u5728\u6700\u3082\u5408\u7406\u7684\u306a\u9078\u629e\u80a2\u3068\u306a\u308a\u3064\u3064\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u30bf\u30af\u30b7\u30fc\u30e1\u30fc\u30bf\u30fc\u5b9f\u88c5\u4e8b\u4f8b\u3068\u4e0d\u63ee\u767a\u6027\u30e1\u30e2\u30ea\u306e\u4f7f\u3044\u65b9<\/strong><\/h2>\n\n\n\n<p>\u4fe1\u983c\u6027\u3068\u30b3\u30b9\u30c8\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u53d6\u308b\u305f\u3081\u3001\u5b9f\u969b\u306e\u8a2d\u8a08\u3067\u306f\u8907\u6570\u306e\u30e1\u30e2\u30ea\u3092\u4f7f\u3044\u5206\u3051\u308b\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u69cb\u6210\u3084\u3001\u7279\u5b9a\u306e\u30e1\u30e2\u30ea\u306b\u6a5f\u80fd\u3092\u96c6\u7d04\u3059\u308b\u8a2d\u8a08\u304c\u884c\u308f\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u6c4e\u7528\u30de\u30a4\u30b3\u30f3\u3092\u7528\u3044\u305f\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u8a2d\u8a08\u306b\u898b\u308b\u30e1\u30e2\u30ea\u69cb\u6210<\/strong><\/h3>\n\n\n\n<p>\u6a19\u6e96\u7684\u306a\u8a2d\u8a08\u3067\u306f\u3001\u983b\u7e41\u306b\u66f8\u304d\u63db\u3048\u306a\u3044\u300c\u30d7\u30ed\u30b0\u30e9\u30e0\u9818\u57df\u300d\u3068\u300c\u6599\u91d1\u30c6\u30fc\u30d6\u30eb\u300d\u306f\u30de\u30a4\u30b3\u30f3\u5185\u8535\u306eFlash\u30e1\u30e2\u30ea\u306b\u683c\u7d0d\u3057\u307e\u3059\u3002\u4e00\u65b9\u3001\u5e38\u6642\u66f4\u65b0\u3055\u308c\u308b\u300c\u7a4d\u7b97\u8ddd\u96e2\u300d\u300c\u904b\u8cc3\u300d\u300c\u30ed\u30b0\u300d\u306f\u5916\u4ed8\u3051\u306eFRAM\u3084\u9ad8\u8010\u4e45EEPROM\u306b\u5272\u308a\u5f53\u3066\u307e\u3059\u3002\u6700\u8fd1\u3067\u306f\u3001\u30b7\u30ea\u30a2\u30eb\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\uff08I2C\/SPI\uff09\u63a5\u7d9a\u306e\u5c0f\u5bb9\u91cfFRAM\u3092\u63a1\u7528\u3057\u3001\u3053\u3053\u306b\u30af\u30ea\u30c6\u30a3\u30ab\u30eb\u306a\u5909\u52d5\u30c7\u30fc\u30bf\u306e\u307f\u3092\u96c6\u7d04\u3055\u305b\u308b\u3053\u3068\u3067\u3001\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u306e\u30b3\u30b9\u30c8\u3092\u6291\u3048\u3064\u3064\u3001\u8a08\u91cf\u5668\u3068\u3057\u3066\u306e\u4fe1\u983c\u6027\u3092\u78ba\u4fdd\u3059\u308b\u69cb\u6210\u304c\u4e3b\u6d41\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u8ddd\u96e2\u30fb\u53ce\u76ca\u30fb\u64cd\u4f5c\u30c7\u30fc\u30bf\u306e\u4e0d\u63ee\u767a\u6027\u30e1\u30e2\u30ea\u4fdd\u5b58\u4f8b<\/strong><\/h3>\n\n\n\n<p>\u4f8b\u3048\u3070\u3001100\u30e1\u30fc\u30c8\u30eb\u8d70\u884c\u3059\u308b\u3054\u3068\u306b\u6599\u91d1\u52a0\u7b97\u51e6\u7406\u304c\u8d70\u308b\u30b7\u30b9\u30c6\u30e0\u306e\u5834\u5408\u30011\u65e5300km\u8d70\u884c\u3059\u308c\u30703000\u56de\u306e\u66f8\u304d\u8fbc\u307f\u304c\u767a\u751f\u3057\u307e\u3059\u3002\u5e74\u9593\u3067\u7d04100\u4e07\u56de\u300110\u5e74\u30671000\u4e07\u56de\u3067\u3059\u3002\u3053\u306e\u983b\u5ea6\u3067\u306f\u6a19\u6e96\u7684\u306aEEPROM\u306e\u4fdd\u8a3c\u5024\u3092\u8d85\u3048\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u3053\u3053\u3067FRAM\u3092\u63a1\u7528\u3059\u308c\u3070\u3001\u66f8\u304d\u63db\u3048\u5bff\u547d\u306e\u554f\u984c\u3092\u5b8c\u5168\u306b\u30af\u30ea\u30a2\u3067\u304d\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u66f8\u304d\u8fbc\u307f\u5f85\u3061\u6642\u9593\uff08Wait\uff09\u304c\u767a\u751f\u3057\u306a\u3044\u305f\u3081\u3001\u6599\u91d1\u8a08\u7b97\u306e\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u6027\u3092\u640d\u306a\u3046\u3053\u3068\u306a\u304f\u3001\u30b7\u30b9\u30c6\u30e0\u52d5\u4f5c\u306e\u30d0\u30c3\u30af\u30b0\u30e9\u30a6\u30f3\u30c9\u3067\u5b89\u5168\u306b\u30ed\u30b0\u3092\u4fdd\u5b58\u3057\u7d9a\u3051\u308b\u3053\u3068\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30fb\u8010\u6539\u3056\u3093\u6027\u3092\u8003\u616e\u3057\u305f\u30e1\u30e2\u30ea\u8a2d\u8a08<\/strong><\/h3>\n\n\n\n<p>\u904b\u8cc3\u30c7\u30fc\u30bf\u306f\u91d1\u92ad\u306b\u76f4\u7d50\u3059\u308b\u305f\u3081\u3001\u6539\u3056\u3093\u9632\u6b62\u306f\u5fc5\u9808\u3067\u3059\u3002\u4e0d\u63ee\u767a\u6027\u30e1\u30e2\u30ea\u4e0a\u306e\u30c7\u30fc\u30bf\u69cb\u9020\u306b\u306f\u3001CRC\uff08\u5de1\u56de\u5197\u9577\u691c\u67fb\uff09\u3084\u30c1\u30a7\u30c3\u30af\u30b5\u30e0\u3092\u4ed8\u4e0e\u3057\u3001\u8aad\u307f\u51fa\u3057\u6642\u306b\u6574\u5408\u6027\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u30e1\u30e2\u30ea\u30c7\u30d0\u30a4\u30b9\u81ea\u4f53\u3092\u7269\u7406\u7684\u306b\u4ea4\u63db\u3055\u308c\u3066\u4e0d\u6b63\u304c\u884c\u308f\u308c\u308b\u306e\u3092\u9632\u3050\u305f\u3081\u3001\u30de\u30a4\u30b3\u30f3\u3068\u30e1\u30e2\u30ea\u9593\u3067\u30e6\u30cb\u30fc\u30afID\u3092\u7528\u3044\u305f\u30da\u30a2\u30ea\u30f3\u30b0\u8a8d\u8a3c\u3092\u884c\u3063\u305f\u308a\u3001\u57fa\u677f\u4e0a\u306e\u914d\u7f6e\u3092\u5de5\u592b\u3057\u3066\u7269\u7406\u7684\u306a\u30a2\u30af\u30bb\u30b9\u3092\u56f0\u96e3\u306b\u3057\u305f\u308a\u3059\u308b\u7b49\u306e\u5b9f\u88c5\u30c6\u30af\u30cb\u30c3\u30af\u3082\u4f75\u305b\u3066\u691c\u8a0e\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u4e0d\u63ee\u767a\u6027\u30e1\u30e2\u30ea\u9078\u5b9a\u306e\u5b9f\u8df5\u30dd\u30a4\u30f3\u30c8\u3068\u4eca\u5f8c\u306e\u5c55\u671b<\/strong><\/h2>\n\n\n\n<p>\u6700\u9069\u306a\u30e1\u30e2\u30ea\u9078\u5b9a\u306f\u3001\u30bf\u30af\u30b7\u30fc\u30e1\u30fc\u30bf\u30fc\u306e\u88fd\u54c1\u5bff\u547d\u3068\u30bf\u30fc\u30b2\u30c3\u30c8\u5e02\u5834\uff08\u6cd5\u898f\u5236\uff09\u306b\u3088\u3063\u3066\u6c7a\u5b9a\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u5404\u4e0d\u63ee\u767a\u6027\u30e1\u30e2\u30ea\u6280\u8853\u306e\u30bf\u30af\u30b7\u30fc\u7528\u9014\u3067\u306e\u9069\u5408\u6027<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>EEPROM:<\/strong> \u30b3\u30b9\u30c8\u91cd\u8996\u306e\u30a8\u30f3\u30c8\u30ea\u30fc\u30e2\u30c7\u30eb\u5411\u3051\u3002\u305f\u3060\u3057\u3001\u96fb\u6e90\u5bfe\u7b56\u56de\u8def\u3068\u30a6\u30a7\u30a2\u30ec\u30d9\u30ea\u30f3\u30b0\u5b9f\u88c5\u304c\u5fc5\u9808\u3002<\/li>\n\n\n\n<li><strong>nvSRAM:<\/strong> \u9ad8\u901f\u6027\u304c\u7d76\u5bfe\u6761\u4ef6\u306e\u5834\u5408\u5411\u3051\u3002\u305f\u3060\u3057\u3001\u30d0\u30c3\u30c6\u30ea\u30fc\u7b49\u306e\u90e8\u54c1\u30b5\u30a4\u30ba\u3068\u96fb\u6e90\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u306e\u7ba1\u7406\u304c\u5fc5\u8981\u3002<\/li>\n\n\n\n<li><strong>FRAM:<\/strong> \u9ad8\u4fe1\u983c\u6027\u30fb\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u30d5\u30ea\u30fc\u91cd\u8996\u306e\u30cf\u30a4\u30a8\u30f3\u30c9\u30fb\u30df\u30c9\u30eb\u30ec\u30f3\u30b8\u5411\u3051\u3002\u56de\u8def\u8a2d\u8a08\u304c\u30b7\u30f3\u30d7\u30eb\u306b\u306a\u308a\u3001\u30c8\u30fc\u30bf\u30eb\u30b3\u30b9\u30c8\u3067\u6709\u5229\u306b\u306a\u308b\u30b1\u30fc\u30b9\u304c\u5897\u52a0\u4e2d\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u8a2d\u8a08\u8005\u304c\u62bc\u3055\u3048\u3066\u304a\u304f\u3079\u304d\u9078\u5b9a\u30fb\u5b9f\u88c5\u6642\u306e\u6ce8\u610f\u70b9<\/strong><\/h3>\n\n\n\n<p>\u8eca\u8f09\u74b0\u5883\u306f\u904e\u9177\u3067\u3059\u3002\u9078\u5b9a\u6642\u306b\u306f\u3001\u52d5\u4f5c\u6e29\u5ea6\u7bc4\u56f2\uff08\u7279\u306b\u9ad8\u6e29\u5074\u300185\u2103\u3084105\u2103\u5bfe\u5fdc\uff09\u3092\u5fc5\u305a\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u307e\u305f\u3001SPI\u3084I2C\u306a\u3069\u306e\u901a\u4fe1\u30e9\u30a4\u30f3\u306b\u306f\u3001\u8eca\u8f09\u7279\u6709\u306e\u30ce\u30a4\u30ba\u304c\u4e57\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u901a\u4fe1\u30a8\u30e9\u30fc\u767a\u751f\u6642\u306e\u518d\u9001\u51e6\u7406\uff08\u30ea\u30c8\u30e9\u30a4\uff09\u3084\u3001\u7570\u5e38\u691c\u77e5\u6642\u306e\u30d5\u30a7\u30a4\u30eb\u30bb\u30fc\u30d5\uff08\u5b89\u5168\u5074\u306b\u5012\u3059\u51e6\u7406\uff09\u3092\u30d5\u30a1\u30fc\u30e0\u30a6\u30a7\u30a2\u30ec\u30d9\u30eb\u3067\u5b9f\u88c5\u3057\u3066\u304a\u304f\u3053\u3068\u304c\u3001\u5e02\u5834\u30c8\u30e9\u30d6\u30eb\u3092\u9632\u3050\u6700\u5f8c\u306e\u7826\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u8a2d\u8a08\u6bb5\u968e\u306b\u304a\u3051\u308b\u4e0d\u63ee\u767a\u6027\u30e1\u30e2\u30ea\u306e\u691c\u8a0e\u30d7\u30ed\u30bb\u30b9<\/strong><\/h3>\n\n\n\n<p>\u4ed5\u69d8\u691c\u8a0e\u306e\u521d\u671f\u6bb5\u968e\u3067\u300c\u66f8\u304d\u8fbc\u307f\u983b\u5ea6\u300d\u3068\u300c\u30c7\u30fc\u30bf\u4fdd\u6301\u671f\u9593\u300d\u306e\u8a66\u7b97\uff08\u66f8\u304d\u8fbc\u307f\u30b5\u30a4\u30af\u30eb\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\uff09\u3092\u5b9f\u65bd\u3059\u308b\u3053\u3068\u304c\u3001\u9577\u671f\u4fe1\u983c\u6027\u3092\u62c5\u4fdd\u3059\u308b\u4e0a\u3067\u6975\u3081\u3066\u91cd\u8981\u3067\u3059\u3002\u5b89\u6613\u306a\u898b\u7a4d\u3082\u308a\u3084\u611f\u899a\u7684\u306a\u5224\u65ad\u3067\u9032\u3081\u308b\u3068\u3001\u91cf\u7523\u5f8c\u306e\u9577\u671f\u9593\u4f7f\u7528\u3067\u30e1\u30e2\u30ea\u30bb\u30eb\u304c\u52a3\u5316\u3057\u3001\u30c7\u30fc\u30bf\u5316\u3051\u3092\u5f15\u304d\u8d77\u3053\u3059\u30ea\u30b9\u30af\u304c\u3042\u308a\u307e\u3059\u3002\u30e1\u30e2\u30ea\u306e\u7269\u7406\u7684\u7279\u6027\u3068\u9650\u754c\u3092\u6b63\u3057\u304f\u7406\u89e3\u3057\u3001\u30de\u30fc\u30b8\u30f3\u3092\u6301\u3063\u305f\u8a2d\u8a08\u3092\u884c\u3046\u3053\u3068\u304c\u3001\u30bf\u30af\u30b7\u30fc\u30e1\u30fc\u30bf\u30fc\u3068\u3044\u3046\u793e\u4f1a\u30a4\u30f3\u30d5\u30e9\u6a5f\u5668\u306e\u9ad8\u3044\u54c1\u8cea\u3092\u78ba\u4fdd\u3059\u308b\u3053\u3068\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>RAMXEED\u304c\u63d0\u4f9b\u3059\u308bFeRAM\u88fd\u54c1\u4e00\u89a7<\/strong><br><a href=\"https:\/\/www.ramxeed.com\/jp\/products\/feram-products\">https:\/\/www.ramxeed.com\/jp\/products\/feram-products<\/a><\/p>\n","protected":false},"author":15,"featured_media":5023,"template":"","tech_category":[321],"tech_tag":[323,325,439,344],"column_category":[275],"class_list":["post-5015","column","type-column","status-publish","has-post-thumbnail","hentry","tech_category-application","tech_tag-eeprom","tech_tag-feram","tech_tag-439","tech_tag-344","column_category-others"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u30bf\u30af\u30b7\u30fc\u30e1\u30fc\u30bf\u30fc\u8a2d\u8a08\u306b\u304a\u3051\u308b\u4e0d\u63ee\u767a\u6027\u30e1\u30e2\u30ea\u9078\u5b9a\u30ac\u30a4\u30c9 \u2014 EEPROM \/ FRAM \/ nvSRAM \u306e\u6bd4\u8f03\u3068\u5b9f\u88c5\u4e8b\u4f8b | RAMXEED\uff08\u30e9\u30e0\u30b7\u30fc\u30c9\uff09<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ramxeed.com\/jp\/tech-column\/nvm-selection-for-taxi-meters\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u30bf\u30af\u30b7\u30fc\u30e1\u30fc\u30bf\u30fc\u8a2d\u8a08\u306b\u304a\u3051\u308b\u4e0d\u63ee\u767a\u6027\u30e1\u30e2\u30ea\u9078\u5b9a\u30ac\u30a4\u30c9 \u2014 EEPROM \/ FRAM \/ nvSRAM \u306e\u6bd4\u8f03\u3068\u5b9f\u88c5\u4e8b\u4f8b | RAMXEED\uff08\u30e9\u30e0\u30b7\u30fc\u30c9\uff09\" \/>\n<meta property=\"og:description\" content=\"\u30bf\u30af\u30b7\u30fc\u30e1\u30fc\u30bf\u30fc\u8a2d\u8a08\u306b\u304a\u3051\u308b\u4e0d\u63ee\u767a\u6027\u30e1\u30e2\u30ea\u9078\u5b9a\uff08EEPROM\/FRAM\/nvSRAM\uff09\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002\u983b\u7e41\u306a\u66f8\u304d\u8fbc\u307f\u3078\u306e\u8010\u4e45\u6027\u3084\u96fb\u6e90\u65ad\u6642\u306e\u30c7\u30fc\u30bf\u4fdd\u8b77\u3001\u8eca\u8f09\u74b0\u5883\u3067\u306e\u4fe1\u983c\u6027\u78ba\u4fdd\u306a\u3069\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u8003\u616e\u3059\u3079\u304d\u5b9f\u88c5\u306e\u8981\u70b9\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002 \u30bf\u30af\u30b7\u30fc\u30e1\u30fc\u30bf\u30fc\u306e\u57fa\u672c\u8a2d\u8a08\u3068\u30e1\u30e2\u30ea\u8981\u4ef6 \u30bf\u30af\u30b7\u30fc\u30e1\u30fc\u30bf\u30fc\u306f\u3001\u5358\u306a\u308b\u8ddd\u96e2\u8a08\u6e2c\u5668\u3067\u306f\u306a\u304f\u3001\u91d1\u92ad\u53d6\u5f15\u306e\u6839\u62e0\u3068\u306a\u308b\u300c\u7279\u5b9a\u8a08\u91cf\u5668\u300d\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u305d\u306e\u56de\u8def\u8a2d\u8a08\u306b\u306f\u4e00\u822c\u7684\u306a\u8eca\u8f09\u96fb\u5b50\u6a5f&hellip;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ramxeed.com\/jp\/tech-column\/nvm-selection-for-taxi-meters\/\" \/>\n<meta property=\"og:site_name\" content=\"RAMXEED\uff08\u30e9\u30e0\u30b7\u30fc\u30c9\uff09\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ramxeed.com\/jp\/home\/wp-content\/uploads\/2026\/01\/134-pixta_121779592_S.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"640\" \/>\n\t<meta property=\"og:image:height\" content=\"360\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593\" \/>\n\t<meta name=\"twitter:data1\" content=\"10\u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.ramxeed.com\\\/jp\\\/tech-column\\\/nvm-selection-for-taxi-meters\\\/\",\"url\":\"https:\\\/\\\/www.ramxeed.com\\\/jp\\\/tech-column\\\/nvm-selection-for-taxi-meters\\\/\",\"name\":\"\u30bf\u30af\u30b7\u30fc\u30e1\u30fc\u30bf\u30fc\u8a2d\u8a08\u306b\u304a\u3051\u308b\u4e0d\u63ee\u767a\u6027\u30e1\u30e2\u30ea\u9078\u5b9a\u30ac\u30a4\u30c9 \u2014 EEPROM \\\/ FRAM \\\/ nvSRAM \u306e\u6bd4\u8f03\u3068\u5b9f\u88c5\u4e8b\u4f8b | RAMXEED\uff08\u30e9\u30e0\u30b7\u30fc\u30c9\uff09\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.ramxeed.com\\\/jp\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.ramxeed.com\\\/jp\\\/tech-column\\\/nvm-selection-for-taxi-meters\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.ramxeed.com\\\/jp\\\/tech-column\\\/nvm-selection-for-taxi-meters\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.ramxeed.com\\\/jp\\\/home\\\/wp-content\\\/uploads\\\/2026\\\/01\\\/134-pixta_121779592_S.jpg\",\"datePublished\":\"2026-01-31T06:00:00+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.ramxeed.com\\\/jp\\\/tech-column\\\/nvm-selection-for-taxi-meters\\\/#breadcrumb\"},\"inLanguage\":\"ja\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.ramxeed.com\\\/jp\\\/tech-column\\\/nvm-selection-for-taxi-meters\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\\\/\\\/www.ramxeed.com\\\/jp\\\/tech-column\\\/nvm-selection-for-taxi-meters\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.ramxeed.com\\\/jp\\\/home\\\/wp-content\\\/uploads\\\/2026\\\/01\\\/134-pixta_121779592_S.jpg\",\"contentUrl\":\"https:\\\/\\\/www.ramxeed.com\\\/jp\\\/home\\\/wp-content\\\/uploads\\\/2026\\\/01\\\/134-pixta_121779592_S.jpg\",\"width\":640,\"height\":360},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.ramxeed.com\\\/jp\\\/tech-column\\\/nvm-selection-for-taxi-meters\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u30db\u30fc\u30e0\",\"item\":\"https:\\\/\\\/www.ramxeed.com\\\/jp\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u30c6\u30c3\u30af\u30b3\u30e9\u30e0\",\"item\":\"https:\\\/\\\/www.ramxeed.com\\\/jp\\\/tech-column\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"\u30bf\u30af\u30b7\u30fc\u30e1\u30fc\u30bf\u30fc\u8a2d\u8a08\u306b\u304a\u3051\u308b\u4e0d\u63ee\u767a\u6027\u30e1\u30e2\u30ea\u9078\u5b9a\u30ac\u30a4\u30c9 \u2014 EEPROM \\\/ FRAM \\\/ nvSRAM \u306e\u6bd4\u8f03\u3068\u5b9f\u88c5\u4e8b\u4f8b\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.ramxeed.com\\\/jp\\\/#website\",\"url\":\"https:\\\/\\\/www.ramxeed.com\\\/jp\\\/\",\"name\":\"RAMXEED\uff08\u30e9\u30e0\u30b7\u30fc\u30c9\uff09\",\"description\":\"RAMXEED\u306f\u3001\u9ad8\u6a5f\u80fd\u306e\u96fb\u5b50\u6a5f\u5668\u306b\u6b20\u304f\u3053\u3068\u306e\u3067\u304d\u306a\u3044\u9ad8\u54c1\u8cea\u30fb\u9ad8\u6027\u80fd\u306e\u30e1\u30e2\u30eaLSI\u3092\u3001\u6c38\u5e74\u306b\u308f\u305f\u3063\u3066\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.ramxeed.com\\\/jp\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.ramxeed.com\\\/jp\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"ja\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.ramxeed.com\\\/jp\\\/#organization\",\"name\":\"RAMXEED\uff08\u30e9\u30e0\u30b7\u30fc\u30c9\uff09\",\"url\":\"https:\\\/\\\/www.ramxeed.com\\\/jp\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\\\/\\\/www.ramxeed.com\\\/jp\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.ramxeed.com\\\/jp\\\/home\\\/wp-content\\\/uploads\\\/2024\\\/09\\\/favicon-1.png\",\"contentUrl\":\"https:\\\/\\\/www.ramxeed.com\\\/jp\\\/home\\\/wp-content\\\/uploads\\\/2024\\\/09\\\/favicon-1.png\",\"width\":256,\"height\":256,\"caption\":\"RAMXEED\uff08\u30e9\u30e0\u30b7\u30fc\u30c9\uff09\"},\"image\":{\"@id\":\"https:\\\/\\\/www.ramxeed.com\\\/jp\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u30bf\u30af\u30b7\u30fc\u30e1\u30fc\u30bf\u30fc\u8a2d\u8a08\u306b\u304a\u3051\u308b\u4e0d\u63ee\u767a\u6027\u30e1\u30e2\u30ea\u9078\u5b9a\u30ac\u30a4\u30c9 \u2014 EEPROM \/ FRAM \/ nvSRAM \u306e\u6bd4\u8f03\u3068\u5b9f\u88c5\u4e8b\u4f8b | RAMXEED\uff08\u30e9\u30e0\u30b7\u30fc\u30c9\uff09","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.ramxeed.com\/jp\/tech-column\/nvm-selection-for-taxi-meters\/","og_locale":"ja_JP","og_type":"article","og_title":"\u30bf\u30af\u30b7\u30fc\u30e1\u30fc\u30bf\u30fc\u8a2d\u8a08\u306b\u304a\u3051\u308b\u4e0d\u63ee\u767a\u6027\u30e1\u30e2\u30ea\u9078\u5b9a\u30ac\u30a4\u30c9 \u2014 EEPROM \/ FRAM \/ nvSRAM \u306e\u6bd4\u8f03\u3068\u5b9f\u88c5\u4e8b\u4f8b | RAMXEED\uff08\u30e9\u30e0\u30b7\u30fc\u30c9\uff09","og_description":"\u30bf\u30af\u30b7\u30fc\u30e1\u30fc\u30bf\u30fc\u8a2d\u8a08\u306b\u304a\u3051\u308b\u4e0d\u63ee\u767a\u6027\u30e1\u30e2\u30ea\u9078\u5b9a\uff08EEPROM\/FRAM\/nvSRAM\uff09\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002\u983b\u7e41\u306a\u66f8\u304d\u8fbc\u307f\u3078\u306e\u8010\u4e45\u6027\u3084\u96fb\u6e90\u65ad\u6642\u306e\u30c7\u30fc\u30bf\u4fdd\u8b77\u3001\u8eca\u8f09\u74b0\u5883\u3067\u306e\u4fe1\u983c\u6027\u78ba\u4fdd\u306a\u3069\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u8003\u616e\u3059\u3079\u304d\u5b9f\u88c5\u306e\u8981\u70b9\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002 \u30bf\u30af\u30b7\u30fc\u30e1\u30fc\u30bf\u30fc\u306e\u57fa\u672c\u8a2d\u8a08\u3068\u30e1\u30e2\u30ea\u8981\u4ef6 \u30bf\u30af\u30b7\u30fc\u30e1\u30fc\u30bf\u30fc\u306f\u3001\u5358\u306a\u308b\u8ddd\u96e2\u8a08\u6e2c\u5668\u3067\u306f\u306a\u304f\u3001\u91d1\u92ad\u53d6\u5f15\u306e\u6839\u62e0\u3068\u306a\u308b\u300c\u7279\u5b9a\u8a08\u91cf\u5668\u300d\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u305d\u306e\u56de\u8def\u8a2d\u8a08\u306b\u306f\u4e00\u822c\u7684\u306a\u8eca\u8f09\u96fb\u5b50\u6a5f&hellip;","og_url":"https:\/\/www.ramxeed.com\/jp\/tech-column\/nvm-selection-for-taxi-meters\/","og_site_name":"RAMXEED\uff08\u30e9\u30e0\u30b7\u30fc\u30c9\uff09","og_image":[{"width":640,"height":360,"url":"https:\/\/www.ramxeed.com\/jp\/home\/wp-content\/uploads\/2026\/01\/134-pixta_121779592_S.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593":"10\u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.ramxeed.com\/jp\/tech-column\/nvm-selection-for-taxi-meters\/","url":"https:\/\/www.ramxeed.com\/jp\/tech-column\/nvm-selection-for-taxi-meters\/","name":"\u30bf\u30af\u30b7\u30fc\u30e1\u30fc\u30bf\u30fc\u8a2d\u8a08\u306b\u304a\u3051\u308b\u4e0d\u63ee\u767a\u6027\u30e1\u30e2\u30ea\u9078\u5b9a\u30ac\u30a4\u30c9 \u2014 EEPROM \/ FRAM \/ nvSRAM \u306e\u6bd4\u8f03\u3068\u5b9f\u88c5\u4e8b\u4f8b | RAMXEED\uff08\u30e9\u30e0\u30b7\u30fc\u30c9\uff09","isPartOf":{"@id":"https:\/\/www.ramxeed.com\/jp\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.ramxeed.com\/jp\/tech-column\/nvm-selection-for-taxi-meters\/#primaryimage"},"image":{"@id":"https:\/\/www.ramxeed.com\/jp\/tech-column\/nvm-selection-for-taxi-meters\/#primaryimage"},"thumbnailUrl":"https:\/\/www.ramxeed.com\/jp\/home\/wp-content\/uploads\/2026\/01\/134-pixta_121779592_S.jpg","datePublished":"2026-01-31T06:00:00+00:00","breadcrumb":{"@id":"https:\/\/www.ramxeed.com\/jp\/tech-column\/nvm-selection-for-taxi-meters\/#breadcrumb"},"inLanguage":"ja","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.ramxeed.com\/jp\/tech-column\/nvm-selection-for-taxi-meters\/"]}]},{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/www.ramxeed.com\/jp\/tech-column\/nvm-selection-for-taxi-meters\/#primaryimage","url":"https:\/\/www.ramxeed.com\/jp\/home\/wp-content\/uploads\/2026\/01\/134-pixta_121779592_S.jpg","contentUrl":"https:\/\/www.ramxeed.com\/jp\/home\/wp-content\/uploads\/2026\/01\/134-pixta_121779592_S.jpg","width":640,"height":360},{"@type":"BreadcrumbList","@id":"https:\/\/www.ramxeed.com\/jp\/tech-column\/nvm-selection-for-taxi-meters\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u30db\u30fc\u30e0","item":"https:\/\/www.ramxeed.com\/jp\/"},{"@type":"ListItem","position":2,"name":"\u30c6\u30c3\u30af\u30b3\u30e9\u30e0","item":"https:\/\/www.ramxeed.com\/jp\/tech-column\/"},{"@type":"ListItem","position":3,"name":"\u30bf\u30af\u30b7\u30fc\u30e1\u30fc\u30bf\u30fc\u8a2d\u8a08\u306b\u304a\u3051\u308b\u4e0d\u63ee\u767a\u6027\u30e1\u30e2\u30ea\u9078\u5b9a\u30ac\u30a4\u30c9 \u2014 EEPROM \/ FRAM \/ nvSRAM \u306e\u6bd4\u8f03\u3068\u5b9f\u88c5\u4e8b\u4f8b"}]},{"@type":"WebSite","@id":"https:\/\/www.ramxeed.com\/jp\/#website","url":"https:\/\/www.ramxeed.com\/jp\/","name":"RAMXEED\uff08\u30e9\u30e0\u30b7\u30fc\u30c9\uff09","description":"RAMXEED\u306f\u3001\u9ad8\u6a5f\u80fd\u306e\u96fb\u5b50\u6a5f\u5668\u306b\u6b20\u304f\u3053\u3068\u306e\u3067\u304d\u306a\u3044\u9ad8\u54c1\u8cea\u30fb\u9ad8\u6027\u80fd\u306e\u30e1\u30e2\u30eaLSI\u3092\u3001\u6c38\u5e74\u306b\u308f\u305f\u3063\u3066\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002","publisher":{"@id":"https:\/\/www.ramxeed.com\/jp\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.ramxeed.com\/jp\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"ja"},{"@type":"Organization","@id":"https:\/\/www.ramxeed.com\/jp\/#organization","name":"RAMXEED\uff08\u30e9\u30e0\u30b7\u30fc\u30c9\uff09","url":"https:\/\/www.ramxeed.com\/jp\/","logo":{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/www.ramxeed.com\/jp\/#\/schema\/logo\/image\/","url":"https:\/\/www.ramxeed.com\/jp\/home\/wp-content\/uploads\/2024\/09\/favicon-1.png","contentUrl":"https:\/\/www.ramxeed.com\/jp\/home\/wp-content\/uploads\/2024\/09\/favicon-1.png","width":256,"height":256,"caption":"RAMXEED\uff08\u30e9\u30e0\u30b7\u30fc\u30c9\uff09"},"image":{"@id":"https:\/\/www.ramxeed.com\/jp\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/www.ramxeed.com\/jp\/wp-json\/wp\/v2\/column\/5015","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ramxeed.com\/jp\/wp-json\/wp\/v2\/column"}],"about":[{"href":"https:\/\/www.ramxeed.com\/jp\/wp-json\/wp\/v2\/types\/column"}],"author":[{"embeddable":true,"href":"https:\/\/www.ramxeed.com\/jp\/wp-json\/wp\/v2\/users\/15"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ramxeed.com\/jp\/wp-json\/wp\/v2\/media\/5023"}],"wp:attachment":[{"href":"https:\/\/www.ramxeed.com\/jp\/wp-json\/wp\/v2\/media?parent=5015"}],"wp:term":[{"taxonomy":"tech_category","embeddable":true,"href":"https:\/\/www.ramxeed.com\/jp\/wp-json\/wp\/v2\/tech_category?post=5015"},{"taxonomy":"tech_tag","embeddable":true,"href":"https:\/\/www.ramxeed.com\/jp\/wp-json\/wp\/v2\/tech_tag?post=5015"},{"taxonomy":"column_category","embeddable":true,"href":"https:\/\/www.ramxeed.com\/jp\/wp-json\/wp\/v2\/column_category?post=5015"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}