CD74HCT157E – HARRIS

Part Number:

CD74HCT157E

Manufacturer:

HARRIS

Date Code:

RoHS:

MSL:

COO:

Description:

DUAL TRUE Single Supply Multiplexer -55C~125C 4mA 4mA 5V 46ns, HARRIS D/C 92+

Datasheet:

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Product Details:

Overview

The Texas Instruments CD74HCT157E is a high-speed CMOS logic multiplexer designed to select one of two input signals and route it to a single output. Its primary function is efficient data selection in digital systems, offering a low propagation delay critical for real-time signal processing. A key design consideration when utilizing the CD74HCT157E is managing the trade-off between its TTL-compatible input voltage levels and its true CMOS output drive strength; ensuring proper interfacing with mixed-logic families requires careful attention to voltage headroom and current sinking/sourcing capabilities to avoid performance degradation or unexpected behavior.

Key Features

Logic Type: 4 x 2:1 Multiplexer
Supply Voltage Range: 4.5V to 5.5V
Output Current: ±4mA (High/Low)
Operating Temperature: -55°C to 125°C
Package: 16-PDIP (0.300″ width)
Mounting Type: Through Hole

Applications

The component is engineered for deployment in systems requiring high reliability and performance under specific operating conditions. It provides functional stability across the stated design envelope.

Digital data routing and selection in control logic
Input signal multiplexing for microcontrollers
Parallel-to-serial data conversion stages
Address decoding for memory peripherals