CD74HCT165E

Shift Registers Overview

The CD74HCT165E is an 8-bit parallel-in serial-out shift register manufactured by Texas Instruments under the HCT logic series. It operates within a supply voltage range of 4.5 V to 5.5 V and features a propagation delay of 40 ns. The device supports a minimum operating temperature of -55 °C and a maximum of +125 °C. It is housed in a PDIP-16 package and contains one circuit with nine input lines.

Shift Registers Feature Summary

• Parallel-to-serial data conversion capability for efficient interface management
• High-speed CMOS technology ensuring low power consumption and fast switching
• Wide industrial temperature range support for robust environmental operation

Shift Registers Applications

• Data acquisition systems requiring parallel input sampling
• Keyboard scanning matrices for input devices
• Memory expansion interfaces in embedded controllers

Shift Registers Procurement Notes

Verify the manufacturer designation on the component marking, as the CD74HCT165E part number is historically associated with Harris Corporation but is currently produced by Texas Instruments. Confirm the specific datasheet revision and RoHS compliance status directly with the supplier or original manufacturer documentation before finalizing procurement decisions.

Shift Registers Selection Notes

Select this component when a single 8-bit parallel-to-serial converter is required within the HCT logic family. Ensure the system design accommodates the 4.5 V to 5.5 V supply voltage constraints and the PDIP-16 through-hole packaging requirements. Verify that the 40 ns propagation delay meets the timing specifications of the target application circuit.

Shift Registers Part Context

This component belongs to the 74HCT logic family, which provides compatibility with standard TTL inputs while utilizing CMOS output characteristics. The CD74HCT165 variant specifically addresses applications needing compact parallel data loading and serial shifting functions within a single integrated circuit package.

Shift Registers Replacement Considerations

The Nexperia 74HCT165D is a documented alternative offering similar functionality in a surface-mount SOIC package. Verify pinout compatibility and electrical parameter alignment before substituting.