SN74LVC157ADRG4

Overview

The SN74LVC157ADRG4 is a quadruple 2-line to 1-line data selector/multiplexer from the Texas Instruments LVC logic family. It operates within a supply voltage range of 1.65V to 3.6V and features inputs that accept voltages up to 5.5V, facilitating translation in mixed-voltage systems. The device provides four independent multiplexers with a common strobe input (G) and address select input (A/B). When G is high, all outputs are low; when G is low, data from the selected channel is routed to the outputs. It is housed in a 16-pin SOIC package.

Feature Summary

• Operates from 1.65V to 3.6V supply voltage
• Inputs accept voltages up to 5.5V for system compatibility
• Features a common active-low output strobe (G) input
• Provides latch-up performance exceeding 250mA per JESD 17

Applications

• Mixed 3.3V/5V system environments
• Data routing applications requiring quadruple selection
• Digital logic circuits utilizing LVC technology

Procurement Notes

Verify the specific ordering suffix 'RG4' corresponds to the required lead-free packaging and RoHS compliance status. Confirm the package type matches the design requirements, as this part number specifically denotes the SOIC-16 variant. Ensure the operating temperature range aligns with the application environment specifications before finalizing procurement.

Selection Notes

Select this component for designs requiring quadruple 2-to-1 multiplexing with low-voltage operation capabilities. The LVC series offers fast propagation delays suitable for high-speed digital applications. Consider the 5.5V tolerant inputs if interfacing with legacy 5V logic sources without additional level shifting components.

Part Context

This device belongs to the SNx4LVC157A family of quadruple 2-line to 1-line data selectors/multiplexers. The family includes variants such as SN54LVC157A for extended military temperature ranges and other package options like SSOP or VQFN. The SN74LVC157ADRG4 represents the commercial grade version in a standard surface-mount SOIC package.

Replacement Considerations

SN74LVC157ADR

FAQ

How does the output strobe (G) input function?

When the G input is high, all outputs are forced low. When G is low, the device functions normally, selecting data based on the A/B input.

What is the maximum input voltage supported by the device?

The inputs can accept voltages up to 5.5V, allowing compatibility with 5V devices even when the supply voltage is lower.