SN74HC594DWR

Shift Registers Overview

The SN74HC594DWR is an active production 8-bit shift register with output registers manufactured by Texas Instruments. It features a serial-in, parallel-out architecture where the shift register feeds an 8-bit D-type storage register. The device operates within a supply voltage range of 2 V to 6 V and supports a wide operating temperature range from -40°C to +125°C. It utilizes positive edge-triggered clocks for both shift (SRCLK) and storage (RCLK) operations. The component is housed in a 16-pin SOIC (DW) package.

Shift Registers Feature Summary

• Provides independent direct overriding clear inputs for both the shift and storage registers.
• Features high-current outputs capable of driving up to 15 LSTTL loads.
• Includes a serial output (QH') specifically designed for cascading multiple devices.

Shift Registers Applications

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

Shift Registers Procurement Notes

Verify the specific ordering suffix 'W' corresponds to the SOIC DW package variant when sourcing. Confirm RoHS compliance status and lead finish details via the manufacturer's current Package Option Addendum. Ensure design implementation accounts for the specified thermal impedance and moisture sensitivity level ratings provided in the official documentation.

Shift Registers Selection Notes

Select this component for applications requiring serial-to-parallel data conversion with registered outputs. The HC logic family offers low power consumption suitable for battery-sensitive designs. Verify that the required input transition rates and load conditions align with the switching characteristics defined in the datasheet specifications.

Shift Registers Part Context

This part belongs to the SNx4HC594 series of 8-bit shift registers with output registers. It is distinct from variants using Schmitt trigger inputs or automotive qualification standards. The device is classified under Logic ICs and Counter Shift Registers within the Texas Instruments product portfolio.

Shift Registers Replacement Considerations

Direct substitutes include SN74HC594DR and SN74HC594DRG4. These alternatives share identical logical functionality but differ in package dimensions (SOIC D vs. SOIC DW). Verify mechanical fit and pinout compatibility before substitution.