CD74HC157MG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Data Selector/Multiplexer
• Characteristics: High-Speed, CMOS Logic, Quad 2-Input Multiplexer
• Package: SOIC-16
• Essence: CD74HC157MG4 is a high-speed CMOS logic IC that functions as a quad 2-input multiplexer. It is commonly used in digital electronics circuits for data selection and multiplexing purposes.
• Packaging/Quantity: The CD74HC157MG4 is available in a standard SOIC-16 package and is typically sold in reels or tubes containing multiple units.

Specifications

• Supply Voltage: 2V to 6V
• Logic Family: HC
• Number of Inputs: 2
• Number of Outputs: 1
• Propagation Delay: 9 ns (typical)
• Operating Temperature Range: -40°C to +85°C
• Input Current: ±1µA (max)
• Output Current: ±25mA (max)

Pin Configuration

The CD74HC157MG4 has a total of 16 pins arranged in a dual in-line package (DIP). The pin configuration is as follows:

+---+--+---+ A1 -|1 +--+ 16|- VCC B1 -|2 15|- Y A2 -|3 14|- B B2 -|4 13|- C G1 -|5 74HC 12|- D G2 -|6 157M 11|- E Y1 -|7 G4 10|- F Y2 -|8 9|- GND +----------+

Functional Features

• The CD74HC157MG4 is a quad 2-input multiplexer that allows the selection of one out of four input signals to be routed to a single output.
• It operates at high-speed, making it suitable for applications requiring fast data selection and multiplexing.
• The CMOS logic technology used in this IC ensures low power consumption and compatibility with a wide range of digital systems.
• The CD74HC157MG4 has a wide supply voltage range, allowing it to be used in various voltage environments.

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data selection and multiplexing. - Low power consumption due to CMOS technology. - Wide supply voltage range provides flexibility in different applications. - Compact SOIC-16 package offers space-saving benefits.

Disadvantages: - Limited number of inputs and outputs (2:1 multiplexer). - Propagation delay may affect timing-sensitive applications. - Sensitivity to electrostatic discharge (ESD) requires proper handling during installation and usage.

Working Principles

The CD74HC157MG4 functions as a multiplexer by selecting one of the four input signals based on the control inputs. The A and B inputs determine which signal is passed through to the output Y. The G1 and G2 inputs control the enable/disable state of the multiplexer. When both G1 and G2 are enabled, the selected input is transferred to the output. The CD74HC157MG4 operates using CMOS logic, ensuring low power consumption and compatibility with various digital systems.

Detailed Application Field Plans

The CD74HC157MG4 can be utilized in a wide range of digital electronics applications, including:

1. Data routing and selection in microcontrollers and microprocessors.
2. Address decoding in memory systems.
3. Signal multiplexing in communication systems.
4. Input selection in analog-to-digital converters (ADCs).
5. Control signal routing in industrial automation systems.

Detailed and Complete Alternative Models

• CD74HC157E: DIP-16 package, extended temperature range (-55°C to +125°C).
• SN74HC157N: DIP-16 package, standard temperature range (-40°C to +85°C).
• MC74HC157AN: DIP-16 package, standard temperature range (-40°C to +85°C), wider supply voltage range (2V to 6V).

These alternative models offer similar functionality to the CD74HC157MG4 but may differ in package type, temperature range, or supply voltage specifications.

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