74HC594D

Shift Registers Overview

The Toshiba Semiconductor and Storage 74HC594D is an 8-bit shift register with an output register, fabricated using silicon gate C2MOS technology. It operates on a supply voltage range of 2.0 V to 6.0 V. The device features independent clocks for the shift and storage registers, allowing parallel outputs to remain stable during shifting. Key electrical parameters include a maximum clock frequency of 55 MHz at 5 V, balanced propagation delays, and a quiescent supply current of 4.0 µA (max) at 25 °C. It is housed in an SOIC-16 package.

Shift Registers Feature Summary

• High-speed operation comparable to LSTTL while maintaining CMOS low power dissipation
• Independent direct clear inputs for both shift and storage registers
• Inputs equipped with protection circuits against static discharge or transient excess voltage

Shift Registers Applications

• Serial-to-parallel data conversion
• Remote control holding register
• Register once, drag and drop applications

Shift Registers Procurement Notes

Verify the manufacturer designation as Toshiba Semiconductor and Storage when sourcing this component. Confirm that the specific part number matches the SOIC-16 packaging format. Ensure compliance with RoHS directives if required by your application standards. Review the latest datasheet revision for any updates to absolute maximum ratings or operating ranges before finalizing procurement specifications.

Shift Registers Selection Notes

Select this component for designs requiring high-speed serial data processing with simultaneous parallel output availability. The wide operating voltage range supports various logic families. Consider the independent clock inputs for applications needing precise timing control between shifting and latching operations. Verify thermal management requirements based on the specified power dissipation derating above 85 °C.

Shift Registers Part Context

This component belongs to the 74HC series of CMOS digital integrated circuits. It is designed to provide high-speed performance similar to equivalent LSTTL devices while offering the low power consumption characteristic of CMOS technology. The 74HC594D is specifically engineered for applications requiring reliable data shifting and storage within standard industrial temperature ranges.

Shift Registers Replacement Considerations

Cross-reference with other manufacturers' 74HC594 equivalents to ensure pin compatibility and electrical parameter alignment. Verify that alternative sources offer the same SOIC-16 package dimensions and marking conventions. Check for any differences in input protection circuitry or output drive capabilities that might affect system performance.