SN74HC165DT

Shift Registers Overview

The SN74HC165DT is an 8-bit parallel-load shift register from the Texas Instruments HC logic family. It converts eight parallel data inputs into a serial output stream. The device operates on a single supply voltage ranging from 2 V to 6 V and supports surface-mount installation in a SOIC-16 package. It features asynchronous serial input capability for cascading multiple units. The component functions within a temperature range of -40°C to +125°C, ensuring reliable operation across industrial and commercial environments.

Shift Registers Feature Summary

• Provides parallel-to-serial data conversion with dedicated parallel load control
• Supports cascading via asynchronous serial input for expanded bit capacity
• Operates across a wide supply voltage range suitable for diverse logic levels

Shift Registers Applications

• Keyboard scanning circuits requiring multiple input polling
• Expansion of microcontroller I/O ports for peripheral interfacing
• Status monitoring systems utilizing switch arrays or sensor banks

Shift Registers Procurement Notes

Verify the specific suffix against official manufacturer documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with existing PCB footprints and soldering profiles. Confirm RoHS compliance status through current datasheets before finalizing procurement orders.

Shift Registers Selection Notes

Select this component when designing systems requiring efficient expansion of digital input lines using minimal controller pins. Consider the HC series speed and voltage characteristics relative to the host processor interface requirements. Evaluate thermal management needs given the extended operating temperature range specified for industrial applications.

Shift Registers Part Context

This part belongs to the widely adopted 74HC logic family, known for high-speed CMOS performance compatible with standard TTL interfaces. The SN74HC165 variant specifically addresses the need for compact parallel data acquisition in space-constrained embedded designs.

Shift Registers Replacement Considerations

Compatible substitutes include SN74HC165DR and SN74HC165DRE4. Verify pinout consistency and electrical parameters before implementation.