Datasheet Details
| Part number | 74HC257 |
|---|---|
| Manufacturer | Nexperia |
| File Size | 245.02 KB |
| Description | Quad 2-input multiplexer |
| Datasheet |
 74HC257 Datasheet
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General Description
The 74HC257; 74HCT257 is a quad 2-input multiplexer with 3-state outputs.
Inputs include clamp diodes.
This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.
Key Features
- Wide supply voltage range from 2.0 V to 6.0 V.
- CMOS low power dissipation.
- High noise immunity.
- Latch-up performance exceeds 100 mA per JESD 78 Class II Level B.
- Complies with JEDEC standards:.
- JESD8C (2.7 V to 3.6 V).
- JESD7A (2.0 V to 6.0 V).
- Non-inverting data path.
- 3-state outputs interface directly with system bus.
- Input levels:.
- For 74HC257: CMOS level.
- For 74HCT257: TTL level.