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74VHC574 Datasheet(PDF) 2 Page - STMicroelectronics |
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74VHC574 Datasheet(HTML) 2 Page - STMicroelectronics |
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, 3, 4, 5, 6, 7, 8, 9 D0 to D7 Data Inputs 12, 13, 14, 15, 16, 17, 18, 19 Q0 to Q7 3 State Outputs 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 74VHC574 2/10 |