CD54AC273F3A

Overview

The CD54AC273F3A is an octal D flip-flop with reset from the Texas Instruments 54AC series. It features buffered inputs and a typical propagation delay of 6.5 ns at VCC = 5V, TA = 25°C, and CL = 50pF. The device utilizes an SCR-latchup-resistant CMOS process. It operates within a supply voltage range of 3V to 18V and supports a wide temperature range from -55°C to +125°C. The component is housed in a hermetically sealed ceramic DIP-20 package.

Feature Summary

• Octal D flip-flop configuration with integrated reset functionality
• Buffered inputs for signal integrity
• SCR-latchup-resistant CMOS construction
• Hermetically sealed ceramic packaging

Applications

• Military aerospace systems requiring radiation hardness
• High-reliability industrial control logic
• Spacecraft data storage registers
• Harsh environment computing modules

Procurement Notes

Verify that the specific part number includes the F3A suffix, which denotes the hermetically sealed ceramic variant. Standard plastic packages do not offer the same environmental protection. Confirm military grade qualification requirements align with the 54AC series specifications before finalizing procurement orders.

Selection Notes

Select this component when hermetic sealing is mandatory for environmental protection. The 54AC series provides faster switching speeds compared to standard 54C logic. Ensure system design accommodates the wider operating voltage range and extended temperature capabilities inherent to military-grade ceramic packages.

Part Context

This device belongs to the Texas Instruments 54AC family of high-speed CMOS logic. The 54AC series offers performance improvements over the older 54C series while maintaining compatibility. The CD54AC273 specifically implements eight independent D-type flip-flops with positive-edge triggering and asynchronous reset.

Replacement Considerations

CD54AC273H