CD74HCT4094M96

Shift Registers Overview

The CD74HCT4094M96 is a high-speed CMOS logic device manufactured by Texas Instruments, functioning as an 8-stage shift and store bus register with three-state outputs. It belongs to the HCT logic series, ensuring compatibility with standard TTL inputs while operating on CMOS technology. The component is housed in a 16-pin SOIC surface-mount package. It operates within a supply voltage range of 4.5 V to 5.5 V and supports a wide operating temperature range from -55°C to +125°C. Key electrical characteristics include a propagation delay of 35 ns at 5 V and output drive capabilities of 4 mA for both high and low states.

Shift Registers Feature Summary

• Integrates an 8-bit serial-in parallel-out shift register with an 8-bit D-type storage register for data holding.
• Features three-state outputs to facilitate direct connection to system buses without external buffers.
• Provides parallel load capability via a dedicated input, allowing immediate transfer of data to the storage register.

Shift Registers Applications

• Parallel-to-serial and serial-to-parallel data conversion in communication interfaces.
• Expansion of I/O ports in microcontroller-based embedded systems.
• Driving display segments or indicator arrays requiring sequential data loading.

Shift Registers Procurement Notes

Verify the specific suffix M96 against the manufacturer's current datasheet to confirm package dimensions and marking details. Ensure the procurement source provides official documentation confirming RoHS compliance and material declarations. Cross-reference the part number with the latest Texas Instruments product selection guide to validate availability status and recommended replacement options if discontinuation has occurred.

Shift Registers Selection Notes

Select this component when a design requires an 8-bit shift register with simultaneous storage and bus-compatible three-state outputs. The HCT series selection is appropriate for systems interfacing with 5 V TTL logic levels. Consider the SOIC package constraints regarding thermal dissipation and board space. Evaluate the 35 ns propagation delay against the system clock speed to ensure timing margins are sufficient for the intended application frequency.

Shift Registers Part Context

This device is part of the Texas Instruments CD74HCTxx family of high-speed CMOS logic integrated circuits. It shares functional similarities with the CD74HC4094 but utilizes HCT input structures for better compatibility with older TTL standards. The M96 suffix typically denotes a specific tape-and-reel packaging configuration optimized for automated surface-mount assembly processes.

Shift Registers Replacement Considerations

CD74HC4094M96

Shift Registers FAQ

What is the function of the parallel load input?

The parallel load input allows data present at the eight parallel data inputs to be transferred directly into the storage register, bypassing the shift register stage.

How does the three-state output benefit bus applications?

The three-state outputs can be disabled, effectively disconnecting the device from the bus, which prevents signal contention when multiple devices share the same data lines.