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74VHCT573A Scheda tecnica(PDF) 2 Page - STMicroelectronics |
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74VHCT573A Scheda tecnica(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 Latch Outputs 11 LE Latch Enable Input 10 GND Ground (0V) 20 VCC Positive Supply Voltage TRUTH TABLE INPUTS OUT PUTS OE L E D Q H XXZ L L X NO CHANGE * LHL L LH H H X:Don’t care Z: High impedance * Q outputs are latched atthe time when the LEinput is taken low logic level. LOGIC DIAGRAM 74VHCT573A 2/10 |
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