SN74HCS259QDRQ1

Overview

The SN74HCS259QDRQ1 is an automotive-grade, 8-bit addressable latch from Texas Instruments' HCS logic family. It features a wide supply voltage range of 2 V to 6 V and operates within a temperature range of -40°C to +125°C. The device provides eight outputs with Schmitt-trigger inputs for noise immunity and is housed in a TSSOP-16 package. It meets AEC-Q100 qualification standards for automotive applications.

Feature Summary

• Automotive qualification compliant with AEC-Q100 standards
• Wide operating supply voltage range from 2 V to 6 V
• Schmitt-trigger inputs provide enhanced noise rejection
• Extended industrial temperature operation up to +125°C

Applications

• Automotive data storage systems
• Address decoding circuits in vehicle electronics
• I/O expansion modules for automotive controllers
• Signal latching in harsh electromagnetic environments

Procurement Notes

Verify the specific suffix 'QDR' confirms the TSSOP-16 package and automotive grade. Confirm AEC-Q100 certification status through official Texas Instruments documentation before integration into safety-critical designs. Ensure input voltage levels match the specified 2 V to 6 V operational range.

Selection Notes

Select this component when automotive reliability and wide voltage tolerance are required. The HCS series offers improved performance over standard HC logic. Verify pin compatibility if replacing legacy parts. Consider power consumption requirements as static current varies with voltage.

Part Context

This part belongs to the SN74HCS259 family of addressable latches. The 'Q' indicates automotive qualification, while 'D' specifies the TSSOP-16 package. It is designed for robust performance in demanding automotive electronic environments requiring high noise immunity.

Replacement Considerations

Check for SN74HCS259PWRQ1 (PW package) or non-automotive SN74HCS259 variants if automotive qualification is not strictly required. Verify package dimensions and pinout compatibility before substitution.