{"id":123,"date":"2016-06-17T22:54:20","date_gmt":"2016-06-17T13:54:20","guid":{"rendered":"http:\/\/blog.y-lab.org\/?p=123"},"modified":"2016-06-17T22:54:20","modified_gmt":"2016-06-17T13:54:20","slug":"74hc-%e3%81%a8-74hct-%e3%81%ae%e5%86%85%e9%83%a8%e5%9b%9e%e8%b7%af%e3%81%ae%e9%81%95%e3%81%84","status":"publish","type":"post","link":"https:\/\/blog.y-lab.org\/?p=123","title":{"rendered":"74HC \u3068 74HCT \u306e\u5185\u90e8\u56de\u8def\u306e\u9055\u3044"},"content":{"rendered":"<p>74HC \u30b7\u30ea\u30fc\u30ba\u3068 74HCT \u30b7\u30ea\u30fc\u30ba\u306f\u30011980 \u5e74\u4ee3\u306b\u767b\u5834\u3057\u305f Si \u30b2\u30fc\u30c8\u306e\u6c4e\u7528 CMOS \u30ed\u30b8\u30c3\u30af\u30d5\u30a1\u30df\u30ea\u3067\u3059\u3002<br \/>\n\u4e21\u30b7\u30ea\u30fc\u30ba\u306e\u9055\u3044\u306b\u3064\u3044\u3066\u306f\u3001\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u3092\u898b\u3066\u3082\u96fb\u6c17\u7684\u7279\u6027\u306e\u898f\u5b9a\u306e\u307f\u3067\u3001\u5185\u90e8\u56de\u8def\u306e\u3069\u3053\u304c\u7570\u306a\u308b\u306e\u304b\u8a18\u3057\u3066\u3042\u308b\u8cc7\u6599\u306f\u5c11\u306a\u3044\u3088\u3046\u306b\u601d\u3046\u306e\u3067\u3001\u3053\u3053\u306b\u8a18\u3057\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n<p>\u307e\u305a\u96fb\u6c17\u7684\u7279\u6027\u304b\u3089\u898b\u308b\u3068\u3001\u4e21\u30b7\u30ea\u30fc\u30ba\u306f\u30ed\u30b8\u30c3\u30af\u30ec\u30d9\u30eb\u304c\u7570\u306a\u308a\u3001HC \u30b7\u30ea\u30fc\u30ba\u306f\u5165\u51fa\u529b\u3068\u3082 CMOS \u30ec\u30d9\u30eb (Vth ~ VDD\/2)\u3067\u3059\u304c\u3001HCT \u30b7\u30ea\u30fc\u30ba\u306f\u5165\u529b\u6bb5\u3092 TTL \u30ec\u30d9\u30eb (Vth ~1.4V) \u306b\u5408\u308f\u305b\u3066\u3044\u307e\u3059\u3002<br \/>\n\u307e\u305f\u3001\u96fb\u6e90\u96fb\u5727\u7bc4\u56f2\u306f HC \u304c 2-6V\u3001HCT \u304c 5V \u00b110% \u3068\u898f\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\uff08JEDEC \u6a19\u6e96\u306e\u5834\u5408\uff09<\/p>\n<p>\u3055\u3066\u3001\u5185\u90e8\u56de\u8def\u306e\u9055\u3044\u3092\u898b\u308b\u3068\u3001<span style=\"color: #ff0000;\">74HC \u3068 74HCT \u306e\u9055\u3044\u306f\u5165\u529b\u6bb5 MOSFET \u306e\u7279\u6027\u306e\u307f<\/span>\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><a href=\"http:\/\/blog.y-lab.org\/wp-content\/uploads\/2016\/06\/hc_hct.png\"><img loading=\"lazy\" class=\"alignnone size-medium wp-image-124\" src=\"http:\/\/blog.y-lab.org\/wp-content\/uploads\/2016\/06\/hc_hct-300x259.png\" alt=\"hc_hct\" width=\"300\" height=\"259\" srcset=\"https:\/\/blog.y-lab.org\/wp-content\/uploads\/2016\/06\/hc_hct-300x259.png 300w, https:\/\/blog.y-lab.org\/wp-content\/uploads\/2016\/06\/hc_hct.png 748w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><br \/>\nHC\/HCT \u30b7\u30ea\u30fc\u30ba\u306f\u30d0\u30c3\u30d5\u30a1\u4ed8\u304d\u306a\u306e\u3067\u3001\u307b\u3068\u3093\u3069\u306e IC \u3067\u540c\u3058CMOS \u30a4\u30f3\u30d0\u30fc\u30bf\u306e\u5165\u529b\u6bb5\u3092\u6301\u3061\u307e\u3059\uff08\u4e0a\u56f3\u5de6\u5074\uff09\u3002<br \/>\n\u3053\u306e N-ch MOSFET \u3068 P-ch MOSFET \u306e\u7279\u6027\u3092\u3046\u307e\u304f\u8a2d\u5b9a\u3059\u308b\u3068\u3001VIN(th) \u3092\u3042\u308b\u7a0b\u5ea6\u81ea\u7531\u306b\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>74HC \u30b7\u30ea\u30fc\u30ba\u3067\u306f\u3001\u3053\u306e P-ch MOSFET \u3068 N-ch MOSFET \u306e VGS(th) \u304c\u540c\u3058\uff08\u30b3\u30f3\u30d7\u30ea\u30e1\u30f3\u30bf\u30ea\uff09\u306b\u306a\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002<br \/>\n\u3053\u308c\u306b\u3088\u308a\u3001HC \u30b7\u30ea\u30fc\u30ba\u306e VIN(th) \u306f VDD \u306e 50% \u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u4e00\u65b9\u300174HCT \u30b7\u30ea\u30fc\u30ba\u306e\u5165\u529b\u6bb5 N-ch MOSFET \u306e VGS(th) \u306f\u3001P-ch \u3088\u308a\u5c0f\u3055\u304f\u306a\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u307e\u3059\u3002<br \/>\n\u5177\u4f53\u7684\u306b\u306f\u3001VDD=5V \u306e\u3068\u304d\u306b VIN(th) \u304c TTL \u30ec\u30d9\u30eb\u3068\u306a\u308b\u3088\u3046\u306b\u4f5c\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e VIN(th) \u306e\u30ec\u30d9\u30eb\u306f VDD \u306b\u6bd4\u4f8b\u3059\u308b\u306e\u3067\u3001<br \/>\nVIN(th) \u3092 TTL \u30ec\u30d9\u30eb\u306b\u56fa\u5b9a\u3059\u308b\u305f\u3081\u306b\u3001<br \/>\n74HCT \u30b7\u30ea\u30fc\u30ba\u306e\u96fb\u6e90\u96fb\u5727\u306f 5V \u5c02\u7528\u3068\u306a\u3063\u3066\u3044\u308b\u308f\u3051\u3067\u3059\u3002<\/p>\n<p>\u5165\u529b\u6bb5\u4ee5\u5916\u306e\u7279\u6027\u306f\u5171\u901a\u306a\u306e\u3067\u3001HCT \u3082 HC \u3068\u540c\u69d8\u3001\u5e83\u3044\u96fb\u6e90\u96fb\u5727\u3067\u3042\u308b\u7a0b\u5ea6\u52d5\u4f5c\u3055\u305b\u308b\u3053\u3068\u306f\u53ef\u80fd\u3067\u3059\u3002<br \/>\nAC \u7279\u6027\u306b\u3064\u3044\u3066\u3082\u3001\u5165\u529b\u6bb5\u304c\u975e\u5bfe\u79f0\u306a\u5206\u82e5\u5e72\u6027\u80fd\u306f\u843d\u3061\u307e\u3059\u304c\u3001\u4ed6\u306e\u90e8\u5206\u306f\u540c\u4e00\u306a\u306e\u3067\u3001HC \u30b7\u30ea\u30fc\u30ba\u3068\u307b\u3068\u3093\u3069\u7b49\u4fa1\u3068\u306a\u308a\u307e\u3059\u3002<br \/>\n\u305f\u3060\u3057\u3001VGS-RDS \u7279\u6027\u306e\u901a\u308a\u3001\u5165\u529b\u6bb5 P-ch MOSFET \u306e\u30c9\u30e9\u30a4\u30d6\u304c\u5f31\u304f\u306a\u308b\u306e\u3067\u3001\u4f4e\u96fb\u5727\u3067\u52d5\u4f5c\u3055\u305b\u308b\u5834\u5408\u306b\u7279\u6027\u304c\u843d\u3061\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>74HCT \u30b7\u30ea\u30fc\u30ba\u3067\u6ce8\u610f\u304c\u5fc5\u8981\u306a\u70b9\u306f\u4ed6\u306b\u3082\u3042\u308a\u3001\u4e00\u822c\u306b CMOS \u30ed\u30b8\u30c3\u30af\u306f\u30b9\u30bf\u30c6\u30a3\u30c3\u30af\u52d5\u4f5c\u3067\u96fb\u6d41\u3092\u6d88\u8cbb\u3057\u306a\u3044\u306e\u3067\u3059\u304c\u3001<span style=\"color: #ff0000;\">HCT \u30b7\u30ea\u30fc\u30ba\u306b TTL \u306e H \u30ec\u30d9\u30eb\u4fe1\u53f7\u3092\u5165\u529b\u3059\u308b\u3068\u3001mA \u30aa\u30fc\u30c0\u306e\u6d88\u8cbb\u96fb\u6d41\u304c\u6d41\u308c\u3066\u3057\u307e\u3044\u307e\u3059<\/span>\u3002<br \/>\n<a href=\"http:\/\/blog.y-lab.org\/wp-content\/uploads\/2016\/06\/hc_hct_2.png\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-125\" src=\"http:\/\/blog.y-lab.org\/wp-content\/uploads\/2016\/06\/hc_hct_2.png\" alt=\"hc_hct_2\" width=\"283\" height=\"244\" \/><\/a><br \/>\n\u4e0a\u56f3\u306e\u901a\u308a\u3001TTL \u306e H \u30ec\u30d9\u30eb (worst \u3067 2.4V) \u5165\u529b\u306b\u304a\u3044\u3066\u3001\u5165\u529b\u6bb5\u306e FET \u306f\u4e21\u65b9\u3068\u3082 ON \u72b6\u614b\u3068\u306a\u308b\u306e\u3067\u3001H \u30ec\u30d9\u30eb\u306e\u30b9\u30bf\u30c6\u30a3\u30c3\u30af\u306a\u5165\u529b\u3067\u3082\u8cab\u901a\u96fb\u6d41\u304c\u6d41\u308c\u307e\u3059\u3002<br \/>\nHCT \u3067\u306f\u5165\u529b\u6bb5\u304c\u30b3\u30f3\u30d7\u30ea\u30e1\u30f3\u30bf\u30ea\u3067\u306a\u304f\u3001\u540c\u7a0b\u5ea6\u306e AC \u7279\u6027\u3092\u78ba\u4fdd\u3059\u308b\u90fd\u5408\u4e0a\u3001\u8cab\u901a\u96fb\u6d41\u306e\u5024\u3082 HC \u30b7\u30ea\u30fc\u30ba\u3088\u308a\u591a\u304f\u306a\u3063\u3066\u3044\u307e\u3059\u3002<br \/>\n\u3082\u3061\u308d\u3093 CMOS \u30ec\u30d9\u30eb\u306e DC \u5165\u529b\u306a\u3089\u3070\u3001HCT\u00a0 \u3067\u3082\u307b\u3068\u3093\u3069\u96fb\u529b\u3092\u6d88\u8cbb\u3057\u307e\u305b\u3093\u3002<\/p>\n<p>TTL \u30ec\u30d9\u30eb\u5165\u529b\u6642\u306e 74HCT \u30b7\u30ea\u30fc\u30ba\u306e\u6d88\u8cbb\u96fb\u529b\u306f\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u306e \u0394ICC (TI, RCA) \u3084 IC (Toshiba) \u3067\u898f\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<br \/>\n74HCT00 \u3092\u4f8b\u306b\u3068\u308b\u3068\u3001\u5ba4\u6e29\u3067\u306e 1 \u5165\u529b\u30d4\u30f3\u3042\u305f\u308a\u306e\u6d88\u8cbb\u96fb\u6d41\u306f\u4e0b\u8868\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<pre>CD74HCT00E: 0.1mA (typ), 0.36mA (max) [VI=VCC-2.1V], 1.8mA (max) [VI=2.4V, VCC=5.5V]\r\nSN74HCT00N: 1.4mA (typ), 2.4mA (max) [VI=0.5\/2.4V, VCC=5.5V]\r\nMC74HCT00AN: 2.4mA (max) [VI=2.4V, VCC=5.5V]\r\nTC74HCT00AP: 2.0mA (max) [VI=0.5\/2.4V, VCC=5.5V]\r\n74HCT00N (Philips): 0.15mA(typ), 0.675mA(max) [VI=VCC-2.1V]<\/pre>\n<p>\u305f\u3060\u3057\u3001\u5404\u793e\u3067\u6e2c\u5b9a\u6761\u4ef6\u304c\u5c11\u3057\u7570\u306a\u308b\u70b9\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001\u4e0a\u8a18\u306e\u5024\u306f FET \u306e\u30ea\u30cb\u30a2\u52d5\u4f5c\u306b\u3088\u308b\u7d50\u679c\u3067\u3059\u304b\u3089\u3001\u6e29\u5ea6\u306b\u306f\u975e\u5e38\u306b\u30bb\u30f3\u30b7\u30c6\u30a3\u30d6\u306e\u306f\u305a\u3067\u3059\u3002<br \/>\n1 \u30d4\u30f3\u3042\u305f\u308a\u3067 mA \u30aa\u30fc\u30c0\u3067\u3059\u304b\u3089\u3001\u6761\u4ef6\u306b\u3088\u3063\u3066\u306f 74HCT \u30b7\u30ea\u30fc\u30ba\u306f TTL \u30ed\u30b8\u30c3\u30af IC \u3088\u308a\u3082\u591a\u304f\u306e\u6d88\u8cbb\u96fb\u6d41\u304c\u5fc5\u8981\u306b\u306a\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n<p>\u53c2\u8003\u8cc7\u6599: TI \u793e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ce\u30fc\u30c8<br \/>\nSN54\/74HCT CMOS Logic Family Applications and Restrictions<\/p>\n","protected":false},"excerpt":{"rendered":"<p>74HC \u30b7\u30ea\u30fc\u30ba\u3068 74HCT \u30b7\u30ea\u30fc\u30ba\u306f\u30011980 \u5e74\u4ee3\u306b\u767b\u5834\u3057\u305f Si \u30b2\u30fc\u30c8\u306e\u6c4e\u7528 CMOS \u30ed\u30b8\u30c3\u30af\u30d5\u30a1\u30df\u30ea\u3067\u3059\u3002 \u4e21\u30b7\u30ea\u30fc\u30ba\u306e\u9055\u3044\u306b\u3064\u3044\u3066\u306f\u3001\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u3092\u898b\u3066\u3082\u96fb\u6c17\u7684\u7279\u6027\u306e\u898f\u5b9a\u306e\u307f\u3067\u3001\u5185\u90e8\u56de\u8def\u306e\u3069\u3053\u304c\u7570\u306a\u308b [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[5],"tags":[],"_links":{"self":[{"href":"https:\/\/blog.y-lab.org\/index.php?rest_route=\/wp\/v2\/posts\/123"}],"collection":[{"href":"https:\/\/blog.y-lab.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.y-lab.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.y-lab.org\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.y-lab.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=123"}],"version-history":[{"count":1,"href":"https:\/\/blog.y-lab.org\/index.php?rest_route=\/wp\/v2\/posts\/123\/revisions"}],"predecessor-version":[{"id":126,"href":"https:\/\/blog.y-lab.org\/index.php?rest_route=\/wp\/v2\/posts\/123\/revisions\/126"}],"wp:attachment":[{"href":"https:\/\/blog.y-lab.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=123"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.y-lab.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=123"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.y-lab.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=123"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}