SN74HC594DW

Shift Registers Overview

The SN74HC594DW is an 8-bit serial-in, parallel-out shift register with an output storage register. It operates within a supply voltage range of 2 V to 6 V and features high-current outputs capable of driving up to 15 LSTTL loads. The device includes independent direct overriding clear inputs for both the shift and storage registers, as well as separate clocks for each stage. A serial (QH') output facilitates cascading. Propagation delay is typically 15 ns at 5 V.

Shift Registers Feature Summary

• Wide operating voltage range from 2 V to 6 V
• High-current outputs drive up to 15 LSTTL loads
• Independent direct overriding clears on shift and storage registers
• Separate clocks for shift and storage registers

Shift Registers Applications

• Pro Audio Mixer
• Elevators and Escalators
• Human Machine Interface (HMI): Industrial Monitor
• Entertainment Systems
• Grid Infrastructure: Grid Control
• Access Control and Security: DVR and DVS

Shift Registers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current Package Option Addendum. Confirm that the component status matches project requirements, as certain variants may be obsolete while others remain active production. Ensure the package type corresponds to the intended PCB footprint and thermal management strategy.

Shift Registers Selection Notes

Select this component when a CMOS logic family with wide voltage tolerance and moderate drive strength is required. Consider the separate clock inputs if independent control of shifting and latching is necessary. Verify that the SOIC-16 package dimensions fit the available board space and that the operating temperature range meets environmental specifications.

Shift Registers Part Context

This part belongs to the SNx4HC594 series of 8-bit shift registers with output registers manufactured by Texas Instruments. It utilizes HC CMOS technology, offering low power consumption and compatibility with standard digital logic interfaces. The DW designation indicates a specific small outline integrated circuit package variant within the broader product line.

Shift Registers Replacement Considerations

Check the manufacturer's official documentation for cross-reference data. Verify pinout compatibility and electrical characteristics before substituting.