CD74HC4094DYYR

Shift Registers Overview

The CD74HC4094DYYR is a high-speed CMOS logic device functioning as an 8-stage serial shift and store bus register with tri-state outputs. It operates within a supply voltage range of 2 V to 6 V for HC types, supporting data shifting on positive clock transitions and strobing data to parallel buffered outputs when the Strobe input is high. The component features separate serial outputs (QS1 and QS2) synchronous to both positive and negative clock edges, facilitating cascading capabilities. It provides balanced propagation delay and transition times while offering significant power reduction compared to LSTTL logic ICs.

Shift Registers Feature Summary

• Includes buffered inputs and storage latches associated with each stage for strobing data from serial input to parallel buffered tri-state outputs.
• Provides separate serial outputs synchronous to both positive and negative clock edges to support cascading applications.
• Features wide operating temperature range capability from -55°C to 125°C.

Shift Registers Applications

• Connecting directly to common bus lines via parallel outputs
• Cascading multiple devices for expanded data handling
• High-speed operation in systems with fast clock rise times

Shift Registers Procurement Notes

Verify the specific package type DYY (SOT-23-THIN) and pin count (16) against the target PCB footprint. Confirm that the RoHS compliance status and lead finish (NIPDAU) meet environmental requirements. Ensure the moisture sensitivity level (Level-1) and peak reflow temperature (260°C) are compatible with the assembly process. Check the operating temperature range (-55°C to 125°C) against system thermal constraints.

Shift Registers Selection Notes

Select this component for designs requiring an 8-bit serial-to-parallel conversion with tri-state output control. The HC series offers compatibility with standard CMOS logic levels across a 2 V to 6 V supply range. Consider the SOT-23-THIN package for space-constrained surface-mount applications. Verify input voltage specifications to ensure proper logic level interfacing with the driving circuitry.

Shift Registers Part Context

This part belongs to the Texas Instruments CDx4HC4094 family, which includes variants like CD54HC4094 and CD74HCT4094. The HC series is distinguished by its 2 V to 6 V operation and high noise immunity. The DYYR suffix indicates the specific SOT-23-THIN package and tape-and-reel packaging format. This family serves as a high-speed alternative to older LSTTL technologies with lower power consumption.

Shift Registers Replacement Considerations

CD74HC4094M96G4