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CD54HCT74F 数据表(PDF) 2 Page - Texas Instruments |
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CD54HCT74F 数据表(HTML) 2 Page - Texas Instruments |
2 / 17 page 2 Pinout CD54HC74, CD54HCT74 (CERDIP) CD74HC74, CD74HCT74 (PDIP, SOIC) TOP VIEW Functional Diagram TRUTH TABLE INPUTS OUTPUTS SET RESET CP D Q Q LH X X HL H L XX L H L L X X H (Note 1) H (Note 1) H H ↑ HH L H H ↑ LL H HH L X Q0 Q0 H= High Level (Steady State) L= Low Level (Steady State) X= Don’t Care ↑= Low-to-High Transition Q0 = the level of Q before the indicated input conditions were established. NOTE: 1. This configuration is nonstable, that is, it will not persist when set and reset inputs return to their inactive (high) level. 1R 1D 1CP 1S 1Q 1Q GND VCC 2R 2D 2CP 2S 2Q 2Q 1 2 3 4 5 6 7 14 13 12 11 10 9 8 RESET DATA RESET SET 1 2 3 13 5 6 Q Q 10 CLOCK 4 SET DATA 12 11 9 8 Q Q CLOCK D CP R F/F 2 S GND = PIN 7 VCC = PIN 14 D CP R F/F 1 S CD54HC74, CD74HC74, CD54HCT74, CD74HCT74 |
类似零件编号 - CD54HCT74F |
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类似说明 - CD54HCT74F |
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