{"id":275,"date":"2026-10-26T01:00:00","date_gmt":"2026-10-25T16:00:00","guid":{"rendered":"https:\/\/www.ic-koukogaku.com\/?p=275"},"modified":"2026-10-25T19:05:09","modified_gmt":"2026-10-25T10:05:09","slug":"rd74lvc5901bp-%e3%81%ae%e5%8b%95%e4%bd%9c%e8%a7%a3%e6%9e%90","status":"publish","type":"post","link":"https:\/\/www.ic-koukogaku.com\/?p=275","title":{"rendered":"RD74LVC5901BP \u306e\u52d5\u4f5c\u89e3\u6790"},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n

\u3053\u308c\u306f\u67d0\u6240\u3067\u58f2\u3089\u308c\u3066\u3044\u305f DIP 16 \u30d4\u30f3\u306e\u8a73\u7d30\u4e0d\u660e IC \u3067\u3059\u3002
\u30ab\u30b9\u30bf\u30e0 IC \u306a\u304c\u3089\u308f\u3056\u308f\u3056 74LVC \u30b7\u30ea\u30fc\u30ba\u306e\u578b\u756a\u3092\u4ed8\u3051\u3066\u3044\u308b\u7406\u7531\u306f\u4e0d\u660e\u3067\u3059\u304c\u3001
\u6700\u521d\u306b\u898b\u304b\u3051\u305f\u3068\u304d\u304b\u3089\u5024\u4ed8\u3051\u304c\u5909\u308f\u3089\u306a\u3044\u3001\u3055\u308a\u3068\u3066\u58f2\u308a\u5207\u308c\u305d\u3046\u3067\u3082\u306a\u3055\u305d\u3046\u306a\u306e\u3067\u3053\u306e\u3078\u3093\u3067\u89e3\u6790\u3057\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n\n\n\n

\u89e3\u6790\u3057\u305f\u7d50\u679c\u3092\u4e0b\u8a18\u306b\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

\u96fb\u6c17\u7684\u7279\u6027<\/h2>\n\n\n\n

RD74LVC \u30b7\u30ea\u30fc\u30ba\u306b\u6e96\u3058\u308b\uff08VDD = 1.65-5.5V, \u5165\u529b +5V \u30c8\u30ec\u30e9\u30f3\u30c8\uff09\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

\u30d4\u30f3\u914d\u7f6e<\/h2>\n\n\n\n
\"\"<\/figure>\n\n\n\n


OUT[7:0]<\/code> \u306f\u51fa\u529b\u30d4\u30f3\u3001\u305d\u308c\u4ee5\u5916\u306f\u5165\u529b\u30d4\u30f3
\/CLK<\/code> \u30d4\u30f3\u306e\u307f\u30d7\u30eb\u30a2\u30c3\u30d7\u5185\u8535<\/p>\n\n\n\n

\u52d5\u4f5c<\/h2>\n\n\n\n

16bit \u30d0\u30a4\u30ca\u30ea\u30ab\u30a6\u30f3\u30bf\u3068\u51fa\u529b\u30e9\u30c3\u30c1 (D-FF) \u304c\u5185\u8535\u3055\u308c\u3066\u3044\u308b\u3088\u3046\u3067\u3059\u3002<\/p>\n\n\n\n

\u30ab\u30a6\u30f3\u30c8\u52d5\u4f5c\u30af\u30ed\u30c3\u30af \/CLK<\/code> \u5165\u529b\u306b\u540c\u671f\u3057\u3066\u52d5\u4f5c\u3057\u307e\u3059\u3002\/CLK<\/code> \u306f\u8ca0\u8ad6\u7406\u3067\u3001\u7acb\u4e0b\u308a\u30d1\u30eb\u30b9\u3092\u57fa\u6e96\u3068\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

UPDATE<\/code><\/th>\/CCLR<\/code><\/th>\/CLK<\/code><\/th>\u52d5\u4f5c<\/th><\/tr><\/thead>
X<\/td>L<\/td>X<\/td>\u5185\u90e8\u30ab\u30a6\u30f3\u30bf (CNT) \u30af\u30ea\u30a2 (\u975e\u540c\u671f), \u30e9\u30c3\u30c1\u66f4\u65b0\u8a31\u53ef<\/td><\/tr>
X<\/td>\u2191<\/td>L<\/td>\u30ab\u30a6\u30f3\u30bf\u306b 1 \u30bb\u30c3\u30c8? (CNT <- 1)<\/td><\/tr>
X<\/td>H<\/td>\u2193<\/td>\u5185\u90e8\u30ab\u30a6\u30f3\u30bf\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30c8 (CNT <- CNT+1)<\/td><\/tr>
H<\/td>H<\/td>\u2193<\/td>\u30e9\u30c3\u30c1\u66f4\u65b0\u53ef\u80fd\u306a\u3089\u3070\u51fa\u529b\u30e9\u30c3\u30c1\u66f4\u65b0 (OUT <- CNT), \u30e9\u30c3\u30c1\u66f4\u65b0\u7981\u6b62<\/td><\/tr>
L<\/td>H<\/td>L<\/td>\u30e9\u30c3\u30c1\u66f4\u65b0\u8a31\u53ef<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

UPDATE=H, \/CCLR=H \u306e\u3068\u304d\u51fa\u529b\u30e9\u30c3\u30c1\u66f4\u65b0\u52d5\u4f5c\u3092\u3057\u307e\u3059\u3002UPDATE=L, \/CCLR=H \u306e\u3068\u304d\u306f\u3001\u30e9\u30c3\u30c1\u66f4\u65b0\u8a31\u53ef\u52d5\u4f5c\u3067\u3059\u3002\/CCLR=L \u306e\u3068\u304d\u306f\u3001\u30ab\u30a6\u30f3\u30bf\u5024\u304c\u30af\u30ea\u30a2\u3055\u308c\u307e\u3059\u3002\u51fa\u529b\u30e9\u30c3\u30c1\u306f\u30af\u30ea\u30a2\u3055\u308c\u307e\u305b\u3093\u3002\u30ab\u30a6\u30f3\u30bf\u306f UPDATE \u306e\u72b6\u614b\u306b\u3088\u3089\u305a\u3001\/CLK \u306e\u2193\u30a8\u30c3\u30b8\u3067\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30c8\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n

\u9023\u7d9a\u3057\u305f\u51fa\u529b\u30e9\u30c3\u30c1\u66f4\u65b0\u306f\u7121\u52b9\u306b\u306a\u308a\u307e\u3059\u3002\u5185\u90e8\u306b\u30e9\u30c3\u30c1\u66f4\u65b0\u8a31\u53ef\u306e\u30d5\u30e9\u30b0\u3092\u6301\u3063\u3066\u3044\u308b\u3088\u3046\u3067\u3001\u51fa\u529b\u30e9\u30c3\u30c1\u3092\u518d\u5ea6\u66f4\u65b0\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u4e00\u5ea6\u30ab\u30a6\u30f3\u30bf\u30af\u30ea\u30a2\u3082\u3057\u304f\u306f\u30e9\u30c3\u30c1\u66f4\u65b0\u8a31\u53ef\u3092\u884c\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n

\/OE, OSELA, OSELB \u306f\u51fa\u529b\u72b6\u614b\u3092\u9078\u629e\u3057\u307e\u3059\u30028bit \u51fa\u529b\u30d4\u30f3\u306e\u72b6\u614b\u3092 16bit \u30ab\u30a6\u30f3\u30bf\u5024\u306e\u4e0a\u4f4d\u3001\u30ab\u30a6\u30f3\u30bf\u5024\u4e0b\u4f4d\u3001Hi-Z\u304b\u3089\u9078\u629e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

OSELA=OSELB=L \u306e\u3068\u304d\u306e\u52d5\u4f5c\u306f\u4e0d\u660e\u3067\u3059\u3002\u5185\u90e8\u306e\u6d88\u8cbb\u96fb\u6d41\u304c\u5897\u52a0\u3059\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u3044\u307e\u3059\u3002\u5185\u90e8\u3067 CNT[7:0]<\/code> \u3068 CNT[15:0]<\/code> \u3092\u63a5\u7d9a\u3057\u3066\u3044\u308b\uff1f\u30a2\u30ca\u30ed\u30b0\u30b9\u30a4\u30c3\u30c1\u3067 Mpx \u3057\u3066\u3044\u308b\u306e\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n

\/OE<\/th>OSELA<\/th>OSELB<\/th>OUT[7:0]<\/code><\/th><\/tr><\/thead>
H<\/td>X<\/td>X<\/td>Hi-Z<\/td><\/tr>
L<\/td>L<\/td>L<\/td>\u7981\u6b62(\u30ab\u30a6\u30f3\u30bf H \u306e\u500b\u6570\u3076\u3093\u6d88\u8cbb\u96fb\u6d41\u5897\u5927)<\/td><\/tr>
L<\/td>L<\/td>H<\/td>\u30ab\u30a6\u30f3\u30bf\u5024\u4e0b\u4f4d CNT[7:0]<\/code> \u51fa\u529b<\/td><\/tr>
L<\/td>H<\/td>L<\/td>\u30ab\u30a6\u30f3\u30bf\u5024\u4e0a\u4f4d CNT[15:8]<\/code> \u51fa\u529b<\/td><\/tr>
L<\/td>H<\/td>H<\/td>Hi-Z<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\"\"<\/figure>\n\n\n\n

\u56de\u8def\u56f3\u306b\u3059\u308b\u3068\u3001\u4e0a\u8a18\u306e\u3088\u3046\u306a\u611f\u3058\u306b\u306a\u308b\u3068\u601d\u3044\u307e\u3059\u3002(\u8ffd\u8a18\uff1a\u56de\u8def\u56f3\u3067 \/PR \u306e\u8ad6\u7406\u3068\u5165\u529b\u304b\u3089\u306e\u63a5\u7d9a\u304c\u307e\u3061\u304c\u3063\u3066\u3044\u307e\u3059)<\/p>\n\n\n\n

\u52d5\u4f5c\u30c1\u30e3\u30fc\u30c8\u4f8b<\/h2>\n\n\n\n
\"\"<\/figure>\n\n\n\n

\u7d50\u8ad6<\/h2>\n\n\n\n

RD74LVC5901BP \u306f 16bit \u30d0\u30a4\u30ca\u30ea\u30ab\u30a6\u30f3\u30bf IC \u3067\u3059\u3002\u89e3\u6790\u3055\u308c\u305f\u52d5\u4f5c\u304b\u3089\u3059\u308b\u3068\u3001\u4e00\u5b9a\u306e\u30af\u30ed\u30c3\u30af\u5468\u6ce2\u6570\u3092\u5165\u529b\u3057\u305f\u72b6\u614b\u3067\u3001\/CCLR=L \u306e\u30bf\u30a4\u30df\u30f3\u30b0\u3092 T=0 \u3068\u3057\u3066\u3001UPDATE \u5165\u529b\u304c\u6700\u5f8c\u306b L \u304b\u3089 H \u306b\u9077\u79fb\u3057\u305f\u3068\u304d\u306e\u6642\u9593 T \u3092\u5f97\u308b\u305f\u3081\u306e IC \u3068\u8003\u3048\u308b\u3068\u81ea\u7136\u3067\u3059\u3002\u4e0a\u306e\u56f3\u3067\u52d5\u4f5c\u30c1\u30e3\u30fc\u30c8\u4f8b\u3092\u793a\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n

\u6700\u5927\u5468\u6ce2\u6570\u306f\u5185\u90e8\u30ab\u30a6\u30f3\u30bf\u306e\u5b9f\u88c5\u306b\u3088\u308a\u307e\u3059\u304c\u3001\u30ea\u30d7\u30eb\u30ab\u30a6\u30f3\u30bf\u3060\u3068\u3059\u308b\u3068\u3001\u305f\u3068\u3048\u3070 RD74LVC74B \u306f VDD=3.3V \u3067 f<\/mi>m<\/mi>a<\/mi>x<\/mi><\/mrow><\/msub>=<\/mo>150<\/mn>M<\/mi>H<\/mi>z<\/mi><\/mrow>f_{max}=150MHz<\/annotation><\/semantics><\/math> , t<\/mi>p<\/mi>d<\/mi><\/mrow><\/msub>=<\/mo>5.2<\/mn>n<\/mi>s<\/mi><\/mrow>t_{pd} = 5.2ns<\/annotation><\/semantics><\/math> \u306a\u306e\u3067 16\u6bb5\u3067 83.2ns… \u6700\u5927 11MH\uff5a \u7a0b\u5ea6\u306b\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u540c\u671f\u30ab\u30a6\u30f3\u30bf\u306a\u3089\u3070\u30fb\u30fb\u30fb74LVC \u30b7\u30ea\u30fc\u30ba\u306b\u306f\u30ab\u30a6\u30f3\u30bf IC \u304c\u306a\u3044\u306e\u3067\u3001HD74LVC161A \u306e\u5024\u3092\u501f\u308a\u3066\u304f\u308b\u3068 f<\/mi>m<\/mi>a<\/mi>x<\/mi><\/mrow><\/msub>=<\/mo>130<\/mn>M<\/mi>H<\/mi>z<\/mi>(<\/mo>t<\/mi>y<\/mi>p<\/mi>)<\/mo><\/mrow>f_{max} = 130MHz (typ)<\/annotation><\/semantics><\/math> \u3067\u3059\u304c\u30ab\u30b9\u30b1\u30fc\u30c9\u3059\u308b\u5834\u5408 t<\/mi>s<\/mi>u<\/mi>(<\/mo>E<\/mi>N<\/mi>T<\/mi>)<\/mo><\/mrow><\/msub>+<\/mo>t<\/mi>p<\/mi>d<\/mi>(<\/mo>C<\/mi>L<\/mi>K<\/mi>)<\/mo><\/mrow><\/msub>+<\/mo>t<\/mi>p<\/mi>d<\/mi>(<\/mo>E<\/mi>N<\/mi>T<\/mi>)<\/mo><\/mrow><\/msub>\u2217<\/mo>2<\/mn>=<\/mo>7.5<\/mn>+<\/mo>8.7<\/mn>+<\/mo>7.5<\/mn>\u2217<\/mo>2<\/mn>=<\/mo>31.2<\/mn>n<\/mi>s<\/mi><\/mrow>t_{su(ENT)}+t_{pd(CLK)} + t_{pd(ENT)}*2 = 7.5 + 8.7+7.5*2 = 31.2ns<\/annotation><\/semantics><\/math> \u306a\u306e\u3067\u6700\u5927 30MHz \u304f\u3089\u3044\u3002\u4e0b\u4f4d8bit \u306e\u307f\u4f7f\u3046\u306a\u3089\u305d\u306e\u500d\u304f\u3089\u3044\u306b\u306a\u308a\u307e\u3059\u304c\u3001\u307e\u3042 8bit \u30de\u30a4\u30b3\u30f3\u306e\u30da\u30ea\u30d5\u30a7\u30e9\u30eb\u3088\u308a\u591a\u5c11\u9ad8\u901f\u306a\u30ab\u30a6\u30f3\u30bf\u304c\u671f\u5f85\u3067\u304d\u307e\u3059\u3002\u5fdc\u7528\u3068\u3057\u3066\u306f\u3001\u5bb9\u91cf\u8a08\u3084 ADC \u306a\u3069\u3001\u30de\u30a4\u30b3\u30f3\u30ec\u30b9\u306e\u96e2\u6563\u6642\u9593\u8a08\u6e2c\u306b\u4f7f\u3063\u3066\u307f\u308b\u3068\u304a\u3082\u3057\u308d\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u3053\u308c\u306f\u67d0\u6240\u3067\u58f2\u3089\u308c\u3066\u3044\u305f DIP 16 \u30d4\u30f3\u306e\u8a73\u7d30\u4e0d\u660e IC …<\/p>\n","protected":false},"author":2,"featured_media":279,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,21],"tags":[],"class_list":["post-275","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cmos-ic","category-ic"],"_links":{"self":[{"href":"https:\/\/www.ic-koukogaku.com\/index.php?rest_route=\/wp\/v2\/posts\/275","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=275"}],"version-history":[{"count":8,"href":"https:\/\/www.ic-koukogaku.com\/index.php?rest_route=\/wp\/v2\/posts\/275\/revisions"}],"predecessor-version":[{"id":307,"href":"https:\/\/www.ic-koukogaku.com\/index.php?rest_route=\/wp\/v2\/posts\/275\/revisions\/307"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ic-koukogaku.com\/index.php?rest_route=\/wp\/v2\/media\/279"}],"wp:attachment":[{"href":"https:\/\/www.ic-koukogaku.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=275"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ic-koukogaku.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=275"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ic-koukogaku.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=275"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}