SN74ACT238WBQBRQ1

Signal Switches, Multiplexers, Decoders Overview

The SN74ACT238WBQBRQ1 is an automotive-grade 3-line to 8-line decoder and demultiplexer from Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V. The device features three address inputs and eight active-low outputs, providing inverting logic functionality. It is housed in a 16-pin WQFN package with dimensions of 2.5 mm by 3.5 mm. The component supports a wide operating temperature range from -40°C to +125°C, ensuring reliability in harsh automotive environments.

Signal Switches, Multiplexers, Decoders Feature Summary

• Automotive qualification for reliable operation in vehicle electronics
• Active-low decoding and demultiplexing capabilities
• Compact surface-mount WQFN packaging for space-constrained designs

Signal Switches, Multiplexers, Decoders Applications

• Automotive body control modules
• Vehicle lighting systems
• Infotainment interface circuits

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific suffix WBQBRQ1 to confirm the WQFN-16 package and reel/cut-tape availability. Ensure the 4.5V to 5.5V supply requirement matches the target system design. Confirm automotive grade certification if required for safety-critical applications. Check lead times as automotive components may have extended delivery periods compared to commercial grades.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a 3-to-8 line decoding function is required in automotive applications. It is suitable for systems operating strictly at 5V logic levels. Consider the WQFN-16 footprint for PCB layout constraints. Compare propagation delay specifications against other AC series variants if timing performance is critical for the specific signal path.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the SN74ACT238-Q1 family of automotive decoders. It shares functional similarities with the SN74AC238 and SN74AHC238 series but is optimized for 5V operation. The Q1 suffix indicates automotive qualification, distinguishing it from standard commercial logic devices. It serves as a digital address selector for peripheral activation.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Direct substitutes include SN74ACT238PW and SN74ACT238DWR for different packages. For automotive equivalents, consider SN74ACT238QPWRQ1. Verify pin compatibility and voltage ranges before swapping.