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74VHC374 数据表(PDF) 2 Page - STMicroelectronics |
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74VHC374 数据表(HTML) 2 Page - STMicroelectronics |
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2 / 10 page ![]() INPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PI N No SYMBOL NAME AND FUNCT ION 1 OE 3 State Output Enable Input (Active LOW) 2, 5, 6, 9, 12, 15, 16, 19 Q0 to Q7 3 State Outputs 3, 4, 7, 8, 13, 14, 17, 18 D0 to D7 Data Inputs 11 CLOCK Clock Input (LOW to HIGH, edge triggered) 10 GND Ground (0V) 20 VCC Positive Supply Voltage TRUTH TABLE INPUTS OUT PUTS OE CK D Q H XXZ L X NO CHANGE LL L LH H X:Don’t care Z: High impedance LOGIC DIAGRAM 74VHC374 2/10 |
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