SN74HC253QDRQ1

Overview

The SN74HC253QDRQ1 is an automotive-grade dual 4-to-1-line data selector/multiplexer manufactured by Texas Instruments. It belongs to the HC logic family and operates within a supply voltage range of 2 V to 6 V. The device features a propagation delay of 38 ns and supports surface-mount installation in a SOIC-Narrow-16 package. It is qualified under AEC-Q100 standards for automotive applications, ensuring reliability across a wide operating temperature range from -40°C to +125°C.

Feature Summary

• Dual independent 4-to-1 multiplexing functionality
• Automotive qualification compliant with AEC-Q100 standards
• Wide operating temperature range suitable for harsh environments

Applications

• Automotive electronic control units
• Data routing in vehicle communication systems
• Signal selection in automotive sensor interfaces

Procurement Notes

Verify the specific suffix QDRG4 against official Texas Instruments documentation to confirm exact packaging and reel specifications. Ensure the component meets current RoHS directives and automotive quality requirements before integration into production designs.

Selection Notes

Select this component when dual channel signal routing is required in automotive environments. The HC series offers standard CMOS performance, while the Q1 suffix indicates automotive qualification. Verify package compatibility with PCB footprint requirements prior to finalizing the bill of materials.

Part Context

This part is part of the SN74HC253 family of multiplexers. It provides two independent 4-input selectors within a single 16-pin package. The Q1 designation distinguishes it as an automotive-grade variant, differing from commercial versions in reliability testing and qualification standards.

Replacement Considerations

Check for SN74HC253 variants without the Q1 suffix if automotive qualification is not required. Verify pinout compatibility with existing designs when substituting.