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HD74HC257 |
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| Part Number | HD74HC257 |
| Manufacturer | Hitachi Semiconductor |
| Description | The large output drive capability coupled with the 3-state feature make this device ideal for interfacing with bus lines in a bus organized system. When the output control input line is taken high, th... |
| Features |
• • • • • High Speed Operation: tpd (Data to Y) = 10.5 ns typ (CL = 50 pF) High Output Current: Fanout of 15 LSTTL Loads Wide Operating Voltage: VCC = 2 to 6 V Low Input Current: 1 µA max Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C) Function Table Inputs Output Control L L L L H Select L L H H X A L H X X X B X X L H X Outputs Y L H L H High impedance Notes H: high level, L: low level, X: irrelevant HD74HC257 Pin Arrangement Select 1A 1B 1Y 2A 2B 2Y GND 1 2 3 4 5 6 7 8 (Top view) 1A 1B 1Y 2A 2B 2Y 3Y S OC 4A 4B 4Y 3A 3B 16 VCC 15 Output control 14 4A 13 4B 12 4Y 11 3... |
| Document |
 HD74HC257 Data Sheet
PDF 52.59KB |
Similar Datasheet
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|---|---|---|---|---|
| 1 | HD74HC251 |
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1 of 8 Data Selectors/Multiplexers (with 3-state outputs) |
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| 2 | HD74HC251 |
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1 of 8 Data Selectors/Multiplexers |
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| 3 | HD74HC253 |
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Dual 4-to-1-line Data Selectors/Multiplexers (with 3-state outputs) |
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| 4 | HD74HC253 |
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| 5 | HD74HC257 |
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Quad. 2-to-1-line Data Selectors/Multiplexers |
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| 6 | HD74HC258 |
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Quad. 2-to-1-line Data Selectors/Multiplexers |
|
Desde 2024. D4U Semiconductor.
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