CD74HC194PWT

Shift Registers Overview

The CD74HC194PWT is a high-speed CMOS logic device functioning as a 4-bit bidirectional universal shift register. It operates within a supply voltage range of 2V to 6V and supports a maximum frequency of 28 MHz at nominal voltage. The component utilizes a 16-pin TSSOP package with a pitch of 0.65 mm and a maximum height of 1.2 mm. It features balanced propagation delay and transition times, offering significant power reduction compared to LSTTL technologies. The device is designed for operation across an extended temperature range from -55°C to +125°C.

Shift Registers Feature Summary

• Supports bidirectional data shifting capabilities for versatile data movement applications
• Provides universal shift register functionality with parallel load and serial input options
• Delivers high-speed performance suitable for demanding digital logic circuits

Shift Registers Applications

• Data storage and transfer in digital systems
• Parallel-to-serial and serial-to-parallel conversion tasks
• Arithmetic logic unit components for shifting operations

Shift Registers Procurement Notes

Verify the specific suffix 'PWT' against the manufacturer's official datasheet to confirm the tape and reel packaging configuration and quantity. Ensure the order matches the exact Texas Instruments part number to avoid compatibility issues with existing PCB footprints or design specifications.

Shift Registers Selection Notes

Select this component when a bidirectional 4-bit shift register is required within the HC logic family. Consider the 2V to 6V operating range and the TSSOP-16 package constraints. Verify that the 28 MHz frequency capability meets the system clock requirements and that the extended temperature range suits the environmental conditions.

Shift Registers Part Context

This part belongs to the Texas Instruments CD74HC194 series of high-speed CMOS logic devices. It is functionally compatible with other variants such as CD74HC194PW and CD74HC194PWR, differing primarily in packaging and shipping format. The series is designed to replace older LSTTL equivalents while providing lower power consumption and higher speed performance.

Shift Registers Replacement Considerations

Official substitutes include CD74HC194PW and CD74HC194PWR. Verify pinout compatibility and ensure the replacement variant meets the specific packaging and reel requirements of the assembly process.