CD54AC164F3A

Shift Registers Overview

The CD54AC164F3A is an 8-bit serial-in/parallel-out shift register utilizing Advanced CMOS Logic technology. It features two gated serial inputs (A and B) connected through an internal AND gate, providing a single data input path. The device includes an asynchronous clear (CLR) input that resets all registers to a logical low state independently of the clock. Data is shifted on the rising edge of the clock signal. The component operates within a supply voltage range of 1.5V to 5.5V for AC types and supports a military temperature range from -55°C to +125°C.

Shift Registers Feature Summary

• Asynchronous clear function allows immediate reset of all eight register stages regardless of clock activity.
• Dual gated serial inputs combined via an internal AND gate simplify data entry logic.
• Rising-edge triggered clocking ensures precise data synchronization during shifting operations.
• SCR-latchup-resistant CMOS process design provides robust protection against electrostatic discharge events.

Shift Registers Applications

• Control systems for seven-segment displays requiring simple GPIO interfacing
• Data storage applications involving temporary holding of serial information
• Parallel-to-serial conversion tasks in digital communication interfaces

Shift Registers Procurement Notes

Verify the specific suffix F3A corresponds to the required ceramic DIP packaging and military grade rating. Confirm availability status as limited supply items may require special ordering or have restricted distribution channels. Ensure the procurement source provides valid traceability documentation for military-grade components.

Shift Registers Selection Notes

Select this component when an 8-bit shift register with dual serial inputs and asynchronous reset is required. Consider the wide supply voltage range suitable for various logic families. Evaluate the package constraints against board space requirements. Verify thermal management needs for the specified operating temperature range.

Shift Registers Part Context

This part belongs to the Texas Instruments CD54AC series of high-speed CMOS logic devices. The CD54 prefix indicates military-grade qualification and reliability standards. The AC designation signifies Advanced CMOS technology offering speed comparable to bipolar FAST logic with significantly lower power consumption. This family is designed for demanding industrial and military applications.

Shift Registers Replacement Considerations

CD54ACT164F3A offers TTL-compatible inputs while maintaining similar functionality. CD74AC164 variants provide commercial grade options with different packaging choices such as SOIC or TSSOP. Cross-reference pinouts and electrical specifications to ensure compatibility before substitution.