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74HC253 Dual 4-Bit Multiplexer IC (74253 IC) DIP-16 Package
High-speed CMOS device with 3-state outputs and common select inputs.
- Package Includes: 1 x 74HC253 Dual 4-Bit Multiplexer IC (74253 IC) DIP-16 Package
Specifications:
- Parameter: Min/Max
- Propagation Delay: 17/17 ns
- Input Capacitance: 3.5 pf
- Ambient Temperature: -40/+125°C
- 3-State Output Enable Time nOE to nY: 30/100 ns
- Power Dissipation Capacitance per Multiplexer: 55 ns
- Output Transition Time: 14/60 ns
- 3-State Output Disable Time nOE to nY: 41/150 ns
Features:
- Non-inverting data path
- 3-state outputs for bus interface and multiplex expansion
- Common select inputs
- Separate output enable inputs
The 74HC253 are high-speed Si-gate CMOS devices and are pin-compatible with low power Schottky TTL (LSTTL). They have two identical 4-input multiplexer switches with 3-state outputs, selecting two bits from four sources based on common data select inputs (S0, S1). When the individual output enable (1OE, 2OE) inputs are HIGH, the outputs are forced to the high impedance OFF-state. The “253” is the logic implementation of a 2-pole, 4-position switch, determined by the logic levels applied to S0 and S1.
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