哈哈~~~Q管脚看错了,应该在12脚~~~
Name 74HC02 ; Partno ; Revision V1.0 ; Date 2/6/08 ; Designer HotPower ; Company http://www.**/blog/hotpower/ ; Assembly ; Location ; Device g16v8 ; Format j ;
/** Inputs **/ Pin[1, 11] = [clk, oe]; Pin[2..9] = [A1, B1, A2, B2, A3, B3, A4, B4]; /** Outputs **/ Pin[19, 17, 15, 13] = [C1, C2, C3, C4]; Pin[12] = [Q];//改改很方便~~~ /** Logic Equations **/
!C1 = A1 # B1; !C2 = A2 # B2; !C3 = A3 # B3; !C4 = A4 # B4; Q.d = B4;
______________ | 74HC02 | clk x---|1 20|---x Vcc A1 x---|2 19|---x C1 B1 x---|3 18|---x A2 x---|4 17|---x C2 B2 x---|5 16|---x A3 x---|6 15|---x C3 B3 x---|7 14|---x A4 x---|8 13|---x C4 B4 x---|9 12|---x Q GND x---|10 11|---x oe |______________|
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