CD74HC165MTE4

Shift Registers Overview

The CD74HC165MTE4 is an 8-bit parallel-in/serial-out shift register manufactured by Texas Instruments. It belongs to the high-speed CMOS logic family and features a synchronous parallel load capability, allowing data from eight inputs to be loaded simultaneously into the internal flip-flops. The device serially shifts this stored data out through a single Q7 output pin on each clock pulse. It operates with a supply voltage range of 2V to 6V and includes a dedicated clock inhibit input to pause shifting operations without affecting the stored data state.

Shift Registers Feature Summary

• Synchronous parallel loading of eight bits of data
• Serial output via single Q7 pin
• Clock inhibit functionality for data preservation

Shift Registers Applications

• Keyboard scanning matrices
• Memory expansion systems
• Industrial control input interfaces

Shift Registers Procurement Notes

Verify the specific suffix 'MTE4' against the manufacturer's current datasheet to confirm package type (SOIC-16) and lead-free compliance status. Ensure the ordering part number matches the exact tape-and-reel quantity requirements for your assembly line. Cross-reference the RoHS directive compliance documentation provided in the official product folder before finalizing procurement orders.

Shift Registers Selection Notes

Select this component when an 8-bit parallel-to-serial conversion is required within a CMOS logic environment. It is suitable for designs needing synchronous data capture and serial transmission over limited I/O lines. Consider the operating voltage range and propagation delay characteristics relative to your system clock speed. Verify that the SOIC-16 package dimensions fit your PCB footprint constraints.

Shift Registers Part Context

This part is a member of the Texas Instruments CD74HC series, which provides compatibility with standard 74HC logic families. The 'M' designation indicates a plastic small-outline package, while 'T4' typically denotes tape-and-reel packaging with specific environmental attributes. It serves as a fundamental building block for digital data acquisition and communication interfaces in embedded systems.

Shift Registers Replacement Considerations

Compatible substitutes include SN74HC165 variants with identical logical functions but different packaging or environmental ratings. Check for direct pin-compatible alternatives such as SN74HC165PWG4 or SN74HC165PWRG4, ensuring voltage ranges and electrical specifications align with the original design requirements.