CD74HC4094NSRE4

Shift Registers Overview

The CD74HC4094NSRE4 is an 8-bit shift-and-store bus register manufactured by Texas Instruments. It belongs to the 74HC series of high-speed CMOS logic devices and features three-state outputs. The component integrates an 8-stage shift register and an 8-stage storage register, allowing serial data input to be converted into parallel output. It operates within a supply voltage range of 2 V to 6 V and supports a wide operating temperature range from -55 °C to +125 °C. The device is housed in a 16-pin SOIC package.

Shift Registers Feature Summary

• Integrates an 8-bit shift register and an 8-bit storage register for serial-to-parallel conversion
• Features three-state parallel outputs controlled by an output enable pin
• Supports cascading via dedicated serial output pins for expanded I/O applications

Shift Registers Applications

• Microcontroller I/O expansion systems
• LED display driver circuits
• Serial-to-parallel data conversion interfaces

Shift Registers Procurement Notes

Verify the specific suffix 'E4' indicates lead-free composition and RoHS compliance as per manufacturer standards. Confirm the 'NSR' designation corresponds to the tape and reel packaging format suitable for automated surface-mount assembly processes. Ensure the part number matches the exact 16-SOIC footprint required for the target PCB layout.

Shift Registers Selection Notes

Select this component when a high-speed CMOS shift register with latched outputs is required for driving multiple loads from a microcontroller. The 74HC series offers compatibility with standard TTL logic levels while maintaining low power consumption. The three-state output capability allows for bus sharing in complex digital systems.

Shift Registers Part Context

This part is a member of the Texas Instruments 74HC family, which provides high-speed CMOS performance comparable to LS-TTL but with lower power dissipation. The CD74HC4094 variant specifically addresses applications needing serial data expansion. The NSRE4 suffix denotes a specific manufacturing revision and packaging configuration within the broader 74HC4094 product line.

Shift Registers Replacement Considerations

Compatible substitutes include CD74HC4094M96 and CD74HC4094PWR from Texas Instruments, provided the package type (SOIC vs TSSOP) and mounting requirements are verified.