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74AHC138 数据表(PDF) 2 Page - Diodes Incorporated |
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74AHC138 数据表(HTML) 2 Page - Diodes Incorporated |
2 / 10 page 74AHC138 Document number: DS35482 Rev. 2 - 2 2 of 10 www.diodes.com June 2013 © Diodes Incorporated 74AHC138 Pin Descriptions Pin Number Pin Name Description 1 A0 Address Input 0 2 A1 Address Input 1 3 A2 Address Input 2 4 E1 Enable Input 1 (active LOW) 5 E2 Enable Input 2 (active LOW) 6 E3 Enable Input 3 (active HIGH) 7 Y7 Output 7 (active LOW) 8 GND Ground 9 Y6 Output 6 (active LOW) 10 Y5 Output 5 (active LOW) 11 Y4 Output 4 (active LOW) 12 Y3 Output 3 (active LOW) 13 Y2 Output 2 (active LOW) 14 Y1 Output 1 (active LOW) 15 Y0 Output o (active LOW) 16 Vcc Supply Voltage Function Table Diagram Control Input Output E1 E2 E3 A2 A1 A0 Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 H X X X X X H H H H H H H H X H X X X L L L H L L L H H H H H H H L L L H H H H H H H L H L H L H H H H H L H H L H H H H H H L H H H H L L H H H L H H H H H L H H H L H H H H H H H L H L H H H H H H H H H L H H H H H H H |
类似零件编号 - 74AHC138 |
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类似说明 - 74AHC138 |
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