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74LS257 Quad 2-Input Multiplexer Tri-State IC (74257)
Schottky-clamped high-performance multiplexers with 3-STATE outputs
- Supply Voltage: 4.75 - 5.25V
- Input HIGH Voltage: 2.0V
- Input LOW Voltage: 0.8V
- HIGH Level Output Current: -2.6mA
- LOW Level Output Current: 24mA
- Free Air Operating Temperature: 70°C
- Package Includes: 1 X 74LS257 Quad 2-Input Multiplexer Tri-State IC (74257) DIP-14 Package
Top Features:
- Schottky-clamped for improved A-C performance
- 3-STATE outputs for bus interface in high-performance systems
- Low average propagation delay of 12ns
- Low power dissipation: 50mW
These multiplexers have 3-STATE outputs that directly interface with bus-organized systems. With most outputs disabled, the enabled output drives the bus line to a logic level. The output circuitry ensures no conflicts between outputs. Ideal for n-bit data selectors and TTL registers for data retention.
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