SN74AHCT157PWLE

Signal Switches, Multiplexers, Decoders Overview

The SN74AHCT157PWLE is a quadruple 2-line to 1-line data selector/multiplexer from the SNx4AHCT157 family, designed for 4.5V to 5.5V VCC operation. It features TTL-voltage compatible inputs and a common active-low strobe (G) input that forces all outputs low when high. When the strobe is low, a 4-bit word is selected from two sources based on the address select pin (A/B). The device provides true data outputs and is housed in a TSSOP-16 package.

Signal Switches, Multiplexers, Decoders Feature Summary

• TTL-voltage compatible inputs ensure seamless integration with standard logic families.
• Common strobe input allows simultaneous control of all four multiplexers.

Signal Switches, Multiplexers, Decoders Applications

• Data routing in digital systems
• Signal selection in microcontroller interfaces
• Multiplexing applications requiring TTL compatibility

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific ordering suffix 'LE' against the manufacturer's current Package Option Addendum, as standard listings may not explicitly detail this variant. Confirm the component status, as some SN74AHCT157 PW variants are marked obsolete while PWR versions remain active. Ensure the datasheet revision matches the required specifications for your design.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when TTL-compatible inputs are required within a 5V logic environment. The AHCT series offers higher speed than standard HC devices while maintaining TTL input thresholds. Verify that the TSSOP-16 package fits the PCB layout constraints and that the operating temperature range meets the application requirements.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the SNx4AHCT157 family of automotive-grade quadruple 2-line to 1-line data selectors. The family includes various package options such as SOIC, SSOP, TVSOP, and WQFN. The AHCT designation indicates High-speed CMOS technology with TTL-compatible inputs, optimized for 5V supply voltage operation.

Signal Switches, Multiplexers, Decoders Replacement Considerations

SN74AHCT157PWR is an active production alternative in the same TSSOP-16 package. SN74AHCT157DBR and SN74AHCT157DGVR offer different surface-mount packages (SSOP and TVSOP respectively) within the same logical family.