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M54HC564 数据表(PDF) 2 Page - STMicroelectronics |
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M54HC564 数据表(HTML) 2 Page - STMicroelectronics |
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2 / 13 page ![]() INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION (HC564) PIN No SYMBOL NAME AND FUNCTION 1 OE 3 State output Enable Input (Active LOW) 2, 3, 4, 5, 6, 7, 8, 9, 10 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 PIN DESCRIPTION (HC574) PIN No SYMBOL NAME AND FUNCTION 1 OE 3 State output Enable Input (Active LOW) 2, 3, 4, 5, 6, 7, 8, 9, 10 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 IEC LOGIC SYMBOLS HC574 HC564 M54/M74HC564/574 2/13 |
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