{"id":80,"date":"2026-02-23T19:11:40","date_gmt":"2026-02-23T10:11:40","guid":{"rendered":"https:\/\/www.ic-koukogaku.com\/?p=80"},"modified":"2026-02-23T19:11:40","modified_gmt":"2026-02-23T10:11:40","slug":"7%e3%82%bb%e3%82%b0%e3%83%87%e3%82%b3%e3%83%bc%e3%83%803-7448-%e7%b3%bb","status":"publish","type":"post","link":"https:\/\/www.ic-koukogaku.com\/?p=80","title":{"rendered":"7\u30bb\u30b0\u30c7\u30b3\u30fc\u30c0(3) 7448 \u7cfb"},"content":{"rendered":"\n

7\u30bb\u30b0\u30c7\u30b3\u30fc\u30c0(3) 7448 \u7cfb(SN7448N, SN74LS49N)<\/h2>\n\n\n\n

SN7448N<\/h3>\n\n\n\n
\"\"<\/figure>\n\n\n\n

7448 \u306f 7 \u30bb\u30b0\u30e1\u30f3\u30c8\u30c7\u30b3\u30fc\u30c0 IC \u3067\u3059\u304c\u3001\u51fa\u529b\u306f \u30aa\u30fc\u30d7\u30f3\u30b3\u30ec\u30af\u30bf\uff08OC\uff09\u306b\u52a0\u3048\u3066 2k\u03a9\u306e\u62b5\u6297\u3067\u30d7\u30eb\u30a2\u30c3\u30d7\u3055\u308c\u3066\u304a\u308a\u3001\u306a\u304a\u304b\u3064\u51fa\u529b\u304c\u8ca0\u8ad6\u7406\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u3001NPN Tr \u3092\u62b5\u6297\u306a\u3057\u3067\u5916\u4ed8\u3051\u3057\u3066\u8868\u793a\u5668\u3092\u99c6\u52d5\u3059\u308b\u3053\u3068\u3092\u76ee\u7684\u3068\u3057\u3066\u3044\u307e\u3059\u3002\u5916\u4ed8\u3051 Tr \u3092\u4ecb\u3059\u308b\u3053\u3068\u3067\u3001\u5927\u96fb\u6d41\u3092\u5fc5\u8981\u3068\u3059\u308b\u8868\u793a\u5668\u3084\u3001\u653e\u96fb\u8868\u793a\u7ba1\u306e\u3088\u3046\u306b\u9ad8\u96fb\u5727\u304c\u5fc5\u8981\u306a\u8868\u793a\u5668\u306e\u30c9\u30e9\u30a4\u30d6\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n

\u8cc7\u6599\u306b\u3088\u3063\u3066\u306f “\u30ab\u30bd\u30fc\u30c9\u30b3\u30e2\u30f3LED \u3068\u76f4\u7d50\u53ef\u80fd”\u3068\u3044\u3046\u8a00\u3044\u65b9\u3092\u3057\u3066\u3044\u308b\u3082\u306e\u3082\u307f\u3089\u308c\u307e\u3059\u304c\u3001\u5f53\u6642\u306e LED \u3067\u306f\u5341\u5206\u306a\u660e\u308b\u3055\u3092\u5f97\u308b\u3053\u3068\u306f\u56f0\u96e3\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u73fe\u4ee3\u306e\u9ad8\u8f1d\u5ea6 LED \u3067\u306f\u305d\u308c\u304c\u53ef\u80fd\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

A,B,C,D<\/strong>: BCD \u5165\u529b
\na,b,c,d,e,f,g<\/strong> \u30bb\u30b0\u30e1\u30f3\u30c8\u51fa\u529b
\n\u30aa\u30fc\u30d7\u30f3\u30b3\u30ec\u30af\u30bf\u30027448, 74LS49 \u306f “ON”\u3067 H \u51fa\u529b\u3068\u306a\u308a\u307e\u3059\u3002
\n\/LT<\/strong>: \u30e9\u30f3\u30d7\u30c6\u30b9\u30c8
\nL \u5165\u529b\u3067\u5168\u30bb\u30b0\u30e1\u30f3\u30c8\u70b9\u706f\u3002
\n\/RBI<\/strong>: \u30ea\u30d7\u30eb\u30d6\u30e9\u30f3\u30af\u5165\u529b
\nL \u5165\u529b\u304b\u3064 A-D \u304c “LLLL” \u306e\u3068\u304d\u5168\u30bb\u30b0\u30e1\u30f3\u30c8\u3092\u6d88\u706f\u3057\u307e\u3059\u3002
\n\u4e0a\u4f4d\u6841\u306e \/RBO \u51fa\u529b\u3068\u63a5\u7d9a\u3059\u308b\u3053\u3068\u3067\u30bc\u30ed\u30b5\u30d7\u30ec\u30b9\u3068\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u3001\u6700\u4e0a\u4f4d\u6841\u306f L \u63a5\u7d9a\u3068\u3057\u307e\u3059\u3002
\n\/RBO<\/strong>: \u30ea\u30d7\u30eb\u30d6\u30e9\u30f3\u30af\u51fa\u529b
\n\u4e0b\u4f4d\u6841\u306e \/RBI \u3068\u63a5\u7d9a\u3059\u308b\u3053\u3068\u3067\u30bc\u30ed\u30b5\u30d7\u30ec\u30b9\u3068\u306a\u308a\u307e\u3059\u3002\/RBO \u306f\u901a\u5e38\u306e TTL \u51fa\u529b\u3067\u306f\u306a\u304f\u3001\u5185\u90e8\u30d7\u30eb\u30a2\u30c3\u30d7\u3068\u306a\u3063\u3066\u3044\u308b\u306e\u3067\u3001\u5916\u90e8\u304b\u3089\u30aa\u30fc\u30d7\u30f3\u30b3\u30ec\u30af\u30bf\u3067\u30c9\u30e9\u30a4\u30d6\u3059\u308b\u3053\u3068\u3067\u660e\u308b\u3055\u5909\u8abf\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n

7448 \u306e\u30d5\u30a9\u30f3\u30c8<\/h3>\n\n\n\n
\"\"<\/figure>\n\n\n\n

SN74LS49N<\/h3>\n\n\n\n
\"\"<\/figure>\n\n\n\n

7449 \u306f\u30017448 \u304b\u3089 RBO, LT \u30d4\u30f3\u3092\u9664\u304d 14 \u30d4\u30f3\u30d1\u30c3\u30b1\u30fc\u30b8\u306b\u5165\u308c\u305f IC \u3067\u3059\u3002\u51fa\u529b\u6bb5\u306b\u306f 7448 \u306b\u5b58\u5728\u3057\u305f\u30d7\u30eb\u30a2\u30c3\u30d7\u62b5\u6297\u306f\u5185\u8535\u3055\u308c\u3066\u304a\u3089\u305a\u3001\u5358\u306a\u308b OC \u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

\u5f53\u6642\u306e TI \u306e PDIP \u306f14\u30d4\u30f3 16 \u30d4\u30f3\u3067\u30d1\u30c3\u30b1\u30fc\u30b8\u9577\u3055\u304c\u540c\u3058\u306a\u306e\u3067\u3001\u5c0f\u578b\u5316\u306e\u610f\u5473\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u308f\u3056\u308f\u3056\u30d4\u30f3\u6570\u3092\u524a\u6e1b\u3057\u305f\u76ee\u7684\u306f\u300114 \u30d4\u30f3\u30d5\u30e9\u30c3\u30c8\u30d1\u30c3\u30b1\u30fc\u30b8 (Flatpak) \u306b\u53ce\u3081\u308b\u305f\u3081\u3068\u601d\u308f\u308c\u307e\u3059\u3002<\/p>\n\n\n\n

TI \u793e\u306f PDIP \u306e SN7449N \u3068\u3044\u3046\u578b\u756a\u3092\u8ca9\u58f2\u3057\u306a\u304b\u3063\u305f\u3088\u3046\u3067\u3001\u30b9\u30bf\u30f3\u30c0\u30fc\u30c9 TTL \u3067\u306f\u30d5\u30e9\u30c3\u30c8\u30d1\u30c3\u30b1\u30fc\u30b8 (SN7449W) \u306e\u307f\u30ab\u30bf\u30ed\u30b0\u306b\u5b58\u5728\u3057\u307e\u3059\u3002\u4e0d\u601d\u8b70\u306a\u3053\u3068\u306b\u300c\u9375\u3042\u308a\u7248\u300d\u306e PDIP \u30d1\u30c3\u30b1\u30fc\u30b8 SN74249N \u306e\u65b9\u306f\u30ab\u30bf\u30ed\u30b0\u306b\u5b58\u5728\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

\u305d\u3046\u3044\u3046\u308f\u3051\u3067 SN7449N \u306f\u305f\u3076\u3093\u5b58\u5728\u3057\u307e\u305b\u3093\u304c\u3001LS \u5316\u3057\u305f 74LS49 \u306e PDIP \u7248(SN74LS49N) \u306f\u5b58\u5728\u3057\u307e\u3059\u3002\u3053\u306e\u305f\u3081\u3001\u5199\u771f\u306f 74LS49 \u3092\u63b2\u8f09\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

\"Pasted<\/figure>\n\n\n\n

<\/p>\n\n\n\n

7448\/7449 \u306e\u52d5\u4f5c<\/h3>\n\n\n\n

-> [[7\u30bb\u30b0\u30c7\u30b3\u30fc\u30c0(1)7447\u7cfb<\/a>]]\u53c2\u7167<\/p>\n\n\n\n

7448\/7449 \u306e\u30c9\u30e9\u30a4\u30d0\u6bb5<\/h3>\n\n\n\n

7448 \/ 7449 \u306f\u3001\u57fa\u672c\u7684\u306b\u5916\u90e8\u306b\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u3092\u4ecb\u3057\u3066\u8868\u793a\u5668\u3068\u63a5\u7d9a\u3057\u307e\u3059\u3002IC \u81ea\u4f53\u306e\u8010\u96fb\u5727\u306f 5V \u3057\u304b\u306a\u3044\u306e\u3067\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002
<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u5916\u90e8 NPN \u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u3092\u4f7f\u3046\u3053\u3068\u3067 Com.A LED \u306e\u307b\u304b\u3001\u9ad8\u96fb\u5727\u306e\u5fc5\u8981\u306a\u30cd\u30aa\u30f3\u653e\u96fb\u7ba1\u3084\u30e9\u30f3\u30d7\u3092\u99c6\u52d5\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30cd\u30aa\u30f3\u653e\u96fb\u7ba1\u306f100-200V \u306e\u9ad8\u96fb\u5727\u304c\u5fc5\u8981\u3067\u3001Beckman \u306e\u30d7\u30e9\u30ba\u30de\u8868\u793a\u5668\u304c\u6709\u540d\u3067\u3057\u305f\u30021 \u3064\u306e\u7aef\u5b50\u306b\u3064\u3044\u3066\u3001\u653e\u96fb\u7ba1\u3084\u30e9\u30f3\u30d7\u3068\u306e\u63a5\u7d9a\u4f8b\u3092\u4e0a\u56f3\u306b\u793a\u3057\u307e\u3059\u3002\u305f\u3060\u3057\u3001Beckman \u306f\u5c02\u7528\u306e\u30c9\u30e9\u30a4\u30d0 IC \u3092\u7528\u610f\u3057\u3066\u3044\u307e\u3057\u305f\u3002\u5b9f\u969b\u306e\u3068\u3053\u308d\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u3092\u30bb\u30b0\u30e1\u30f3\u30c8\u306e\u6570\u3060\u3051\u914d\u7dda\u3059\u308b\u306e\u306f\u975e\u5e38\u306b\u5927\u5909\u3067\u3059\u3002<\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

7\u30bb\u30b0\u30c7\u30b3\u30fc\u30c0(3) 7448 \u7cfb(SN7448N, SN7 …<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12,9,8],"tags":[],"class_list":["post-80","post","type-post","status-publish","format-standard","hentry","category-7-segment-decoder","category-bipolar-ic","category-ttl-ic"],"_links":{"self":[{"href":"https:\/\/www.ic-koukogaku.com\/index.php?rest_route=\/wp\/v2\/posts\/80","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ic-koukogaku.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ic-koukogaku.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ic-koukogaku.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ic-koukogaku.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=80"}],"version-history":[{"count":3,"href":"https:\/\/www.ic-koukogaku.com\/index.php?rest_route=\/wp\/v2\/posts\/80\/revisions"}],"predecessor-version":[{"id":89,"href":"https:\/\/www.ic-koukogaku.com\/index.php?rest_route=\/wp\/v2\/posts\/80\/revisions\/89"}],"wp:attachment":[{"href":"https:\/\/www.ic-koukogaku.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=80"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ic-koukogaku.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=80"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ic-koukogaku.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=80"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}