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74HC299D 数据表(PDF) 3 Page - NXP Semiconductors |
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74HC299D 数据表(HTML) 3 Page - NXP Semiconductors |
3 / 11 page December 1990 3 Philips Semiconductors Product specification 8-bit universal shift register; 3-state 74HC/HCT299 PIN DESCRIPTION PIN NO. SYMBOL NAME AND FUNCTION 1, 19 S0, S1 mode select inputs 2, 3 OE1, OE2 3-state output enable inputs (active LOW) 7, 13, 6, 14, 5, 15, 4, 16 I/O0 to I/O7 parallel data inputs or 3-state parallel outputs (bus driver) 8, 17 Q0, Q7 serial outputs (standard output) 9 MR asynchronous master reset input (active LOW) 10 GND ground (0 V) 11 DSR serial data shift-right input 12 CP clock input (LOW-to-HIGH, edge-triggered) 18 DSL serial data shift-left input 20 VCC positive supply voltage Fig.1 Pin configuration. Fig.2 Logic symbol. Fig.3 IEC logic symbol. |
类似零件编号 - 74HC299D |
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类似说明 - 74HC299D |
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