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74VHCT257A Folha de dados(PDF) 2 Page - STMicroelectronics |
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74VHCT257A Folha de dados(HTML) 2 Page - STMicroelectronics |
2 / 13 page 74VHCT257A 2/13 Figure 2: Input Equivalent Circuit Table 2: Pin Description Table 3: Truth Table X: Don’t Care Z: High Impedance Figure 3: Logic Diagram This logic diagram has not be used to estimate propagation delays PIN N° SYMBOL NAME AND FUNCTION 1 SELECT Common Data Select Inputs 2, 5, 11, 14 1A to 4A Data Inputs From Source A 3, 6, 10, 13 1B to 4B Data Inputs From Source B 4, 7, 9, 12 1Y to 4Y 3 State Multiplexer Outputs 15 OE 3 State Output Enable Inputs (Active LOW) 8 GND Ground (0V) 16 VCC Positive Supply Voltage INPUTS OUTPUT OE SELECT A B Y H XXX Z LLL X L LL H X H LH X L L LH X H H |
Nº de peça semelhante - 74VHCT257A |
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Descrição semelhante - 74VHCT257A |
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