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TC74LCX157FN 数据表(PDF) 2 Page - Toshiba Semiconductor |
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TC74LCX157FN 数据表(HTML) 2 Page - Toshiba Semiconductor |
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2 / 11 page ![]() TC74LCX157F/FN/FT/FK 2007-10-19 2 Pin Assignment (top view) IEC Logic Symbol Truth Table Inputs Outputs ST SELECT A B Y H X X X L L L L X L L L H X H L H X L L L H X H H X: Don’t care (13) (15) (11) (1) (3) (2) (6) (5) 1Y 3A SELECT 1B 1A 2B 2A ST 3B 4A 4B (10) (14) EN G1 1 1 MUX (9) (4) (7) (12) 2Y 3Y 4Y VCC 16 ST 4A 4B 4Y 3A 15 14 13 12 11 10 SELECT 1 2 3 4 5 6 7 1A 1B 1Y 2A 2B 2Y 3B 8 GND 9 3Y |
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