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TC74VHC299F 数据表(PDF) 2 Page - Toshiba Semiconductor |
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TC74VHC299F 数据表(HTML) 2 Page - Toshiba Semiconductor |
2 / 12 page TC74VHC299F/FT 2007-10-01 2 Pin Assignment IEC Logic Symbol Truth Table Inputs Inputs /Outputs Outputs Function Select Output Control Serial Mode CLR S1 S0 1 G (Note) 2 G (Note) CK SL SR A/QA H/QH QA’ QH’ Z L H H X X X X X Z Z L L Clear L L L X X L L L L L X X X X X X L L L L L L L L Hold H L L L L X X X QA0 QH0 QA0 QH0 Shift Right H H L L H H L L L L X X H L H L QGn QGn H L QGn QGn Shift Left H H H H L L L L L L H L X X QBn QBn H L QBn QBn H L Load H H H X X X X a h a h Note: When one or both output controls are high, the eight input/output terminals are in the high-impedance state; however sequential or clearing of the register is not affected. Z: High impedance Qn0: The level of Qn before the indicated steady-state input conditions were established. Qnn: The level of Qn before the most recent active transition indicated by ↓ or ↑. a, h: The level of the steady-state inputs A, H, respectively. X: Don’t care. B/QB D/QD F/QF VCC 16 QH’ 15 14 13 12 11 20 1 2 3 4 5 6 7 QA’ CLR 8 SL 19 S1 G/QG 18 9 2 G GND 10 SR 17 CK (top view) S0 E/QE C/QC A/QA 1 G H/QH (3) (2) (11) 1, 4D SR 3 EN 13 R 2 G (6) C/QC (14) D/QD (5) E/QE (15) F/QF SRG 8 (18) SL (17) QH’ Z12 (8) QA’ (9) & 0 1 S0 (1) (19) (12) C4/1→/2← S1 CK (7) A/QA (13) B/QB (16) H/QH (4) G/QG Z5 Z6 CLR 1 G 3, 4D 12, 13 2, 4D 3, 4D 5, 13 3, 4D 6, 13 3 0 M |
类似零件编号 - TC74VHC299F_07 |
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类似说明 - TC74VHC299F_07 |
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