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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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CD74HC652 датащи(PDF) 3 Page - Texas Instruments |
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CD74HC652 датащи(HTML) 3 Page - Texas Instruments |
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3 / 12 page  Functional Diagram FUNCTION TABLE INPUTS DATA I/O OPERATION OR FUNCTION OEAB OEBA CAB CBA SAB SBA A0 THRU A7 B0 THRU B7 651 652 L H H or L H or L X X Input Input Isolation (Note 3) Isolation (Note 3) LH ↑↑ X X Store A and B Data Store A and B Data XH ↑ H or L X X Input Unspecified (Note 4) Store A, Hold B Store A, Hold B HH ↑↑ X (Note 5) X Input Output Store A in Both Registers Store A in Both Registers L X H or L ↑ X X Unspecified (Note 4) Input Hold A, Store B Hold A, Store B LL ↑↑ XX (Note 5) Output Input Store B in Both Registers Store B in Both Registers L L X X X L Output Input Real-Time B Data to A Bus Real-Time B Data to A Bus L L X H or L X H Stored B Data to A Bus Stored B Data to A Bus 20 19 18 17 15 13 14 16 4 B0 B1 B2 B3 B4 B5 B6 B7 OEBA OEAB 21 3 6 11 5 7 8 9 10 A0 A1 A2 A3 A4 A5 A6 A7 1 23 2 22 CAB CLOCK CBA CLOCK SAB SOURCE SBA SOURCE GND = PIN 12 VCC = PIN 24 B DATA PORT A DATA PORT FLIP-FLOP CLOCKS DATA SOURCE SELECTION INPUTS |
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