74VHC595N

Shift Registers Overview

The Fairchild Semiconductor MM74VHC595N is an advanced high-speed CMOS octal shift register with output latches. It features a serial-in, parallel-out architecture with a storage register for simultaneous data updating. The device operates within a voltage range of 2.0 V to 6.0 V and supports cascading for extended bit shifting. Key electrical parameters include a maximum quiescent current of 20 µA and a guaranteed shift frequency up to 100 MHz at 5 V. It utilizes a 16-pin Small Outline package (SOIC) or DIP configuration.

Shift Registers Feature Summary

• Advanced silicon-gate CMOS technology providing high noise immunity and low power consumption
• Octal shift register with storage register enabling simultaneous data updates via separate clocks
• Direct clear input allows immediate reset of the shift register regardless of clock states
• Cascadable design facilitates connection of multiple devices for expanded data handling

Shift Registers Applications

• Serial-to-parallel data conversion in communication interfaces
• LED matrix display scanning and control systems
• General-purpose I/O expansion for microcontroller applications
• Data buffering and storage in digital logic circuits

Shift Registers Procurement Notes

Verify the specific suffix code on the component marking against the official datasheet to confirm the exact package type and temperature rating. Ensure the manufacturer designation matches Fairchild Semiconductor or its successor entity, ON Semiconductor, as part numbers may have been transferred. Confirm RoHS compliance status if required by your assembly specifications.

Shift Registers Selection Notes

Select this component when an octal shift register with independent storage is required for high-speed serial data processing. The VHC series offers superior speed compared to standard HC devices while maintaining CMOS power efficiency. Verify that the operating voltage range aligns with your system's supply rails and that the output drive capability meets the load requirements.

Shift Registers Part Context

This component belongs to the 74VHC family of high-speed CMOS logic devices. It is functionally compatible with other 8-bit shift registers in the 74xx595 lineage but offers improved switching speeds. The N suffix typically denotes a plastic dual-in-line package, distinguishing it from surface-mount variants like the M suffix.

Shift Registers Replacement Considerations

Compatible substitutes include the SN74VHC595 from Texas Instruments and the MC74VHC595 from ON Semiconductor. These parts share identical pinouts and logical functions. Verify that the replacement part's package dimensions and thermal characteristics match your existing board layout.