74VHC164M

Shift Registers Overview

The Fairchild Semiconductor 74VHC164M is an obsolete 8-bit serial-in, parallel-out shift register fabricated using advanced high-speed silicon gate CMOS technology. It operates within a supply voltage range of 2.0V to 5.5V and features low static power consumption. The device supports data shifting on the positive edge of the clock signal and includes a dedicated clear input for resetting all outputs to a low state simultaneously.

Shift Registers Feature Summary

• Advanced high-speed CMOS fabrication enables operation comparable to equivalent LS-type devices while maintaining low power dissipation.

Shift Registers Applications

• General-purpose serial-to-parallel data conversion in digital systems
• Parallel output expansion for microcontroller or logic interfaces
• Data storage elements in sequential logic circuits

Shift Registers Procurement Notes

This component is officially discontinued and no longer in production by Fairchild Semiconductor. Verification of availability requires checking secondary market distributors for obsolete stock. Designers must confirm lead times and authenticity carefully when sourcing from non-original channels due to the part's end-of-life status.

Shift Registers Selection Notes

Engineers should evaluate alternative active components from the same VHC family or modern equivalents with compatible pinouts and electrical characteristics. Considerations include verifying supply voltage compatibility, package dimensions, and ensuring that replacement parts meet the required switching speeds and drive capabilities for the specific application environment.

Shift Registers Part Context

The 74VHC164M belongs to the 74VHC series of high-speed CMOS logic devices produced by Fairchild Semiconductor. This series was designed to provide performance levels similar to standard LS-TTL logic but with the lower power consumption and wider voltage operating ranges typical of CMOS technology. The M suffix indicates a surface-mount SOIC package variant.

Shift Registers Replacement Considerations

Verify cross-reference part numbers such as MM74VHC164M or ON Semiconductor equivalents. Ensure functional parity regarding serial-in parallel-out configuration and active-low clear functionality before substitution.