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TC74VHC221AFK 데이터시트(PDF) 2 Page - Toshiba Semiconductor |
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TC74VHC221AFK 데이터시트(HTML) 2 Page - Toshiba Semiconductor |
2 / 15 page TC74VHC123,221AF/AFN/AFT/AFK 2007-10-19 2 Pin Assignment IEC Logic Symbol Truth Table Inputs Outputs A B CLR Q Q Function H H Output Enable X L H L H Inhibit H X H L H Inhibit L H Output Enable L H Output Enable X X L L H Reset X: Don’t care VCC 16 1RX/CX 1CX 1Q 15 14 13 12 11 10 A 1 1 2 3 4 5 6 7 2Q 2CX 2RX/CX GND 8 A 2 9 2B (top view) 1B CLR 1 Q 1 CLR 2 Q 2 (2) (1) (3) (15) (14) 1CX 1RX/CX (13) 1Q CLR 1 A 1 1B TC74VHC123A R (4) Q 1 CX RX/CX & (10) (9) (11) (7) (6) 2CX 2RX/CX (5) 2Q CLR 2 A 2 2B (12) Q 2 R CX RX/CX & (2) (1) (3) (15) (14) 1CX 1RX/CX (13) 1Q CLR 1 A 1 1B TC74VHC221A R (4) Q 1 CX RX/CX (10) (9) (11) (7) (6) 2CX 2RX/CX (5) 2Q CLR 2 A 2 2B (12) Q 2 1 & R CX RX/CX 1 & |
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