SN74HC157PWRG4

Overview

The SN74HC157PWRG4 is a quadruple 2-line to 1-line data selector/multiplexer manufactured by Texas Instruments. It operates within a supply voltage range of 2V to 6V and supports an operating temperature from -40°C to 85°C. The device features four independent multiplexers controlled by a common address select input and an active-low strobe input. It provides TTL-compatible CMOS inputs, low power consumption with a maximum ICC of 80µA, and typical propagation delay of 11ns at 5V. The component is housed in a 16-pin TSSOP package.

Feature Summary

• Contains four independent 2-to-1 data selectors sharing a common address select input
• Features TTL-compatible CMOS inputs for direct interface with TTL logic devices
• Includes an active-low strobe input that forces all outputs to a low state

Applications

• Switching a 4-bit data bus between two source devices
• Data routing applications requiring high-speed selection
• Multiplexing functions in digital systems

Procurement Notes

Verify the specific ordering suffix 'G4' indicates lead-free packaging and RoHS compliance as per Texas Instruments standards. Confirm the package type matches the required PCB footprint. Ensure the operating temperature range meets system requirements. Check for any recent Product Change Notifications regarding manufacturing sites or materials.

Selection Notes

Select this component when a quadruple 2-to-1 multiplexer with TTL-compatible inputs is required. It is suitable for applications needing low power consumption and operation across a wide voltage range. Consider the TSSOP package size constraints and thermal characteristics during design. Verify compatibility with existing logic families in the signal path.

Part Context

This part belongs to the SNx4HC157 family of quadruple 2-line to 1-line data selectors. It is part of the HC (High-speed CMOS) logic series, designed for general-purpose digital applications. The device offers performance comparable to Low-Power Schottky TTL but with lower power consumption. It is widely used in microprocessor systems and data acquisition circuits.

Replacement Considerations

SN74HC157PWR is the non-RoHS equivalent. SN74HC157PW is the tube-packaged version of the same die.