CD54HC73F

Overview

The CD54HC73F is a high-speed CMOS logic device manufactured by Texas Instruments, featuring dual negative-edge-triggered J-K flip-flops with independent clear inputs. 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 component utilizes a 14-CDIP ceramic package designed for through-hole mounting. Key electrical specifications include a propagation delay of 30 ns at 5 V, with output drive capabilities of -4 mA for low-level and 4 mA for high-level currents.

Feature Summary

• Dual J-K flip-flop configuration with independent asynchronous clear functions
• High-speed CMOS technology ensuring compatibility with standard TTL logic levels
• Robust ceramic packaging suitable for demanding environmental conditions

Applications

• Parallel data storage systems
• Shift register implementations
• Frequency division circuits
• Counter logic design

Procurement Notes

Verify the specific suffix 'F' confirms the 14-lead ceramic DIP package variant. Confirm that the manufacturer source aligns with Texas Instruments specifications for the CD54 series. Ensure the procurement channel provides documentation verifying the military-grade temperature rating and ceramic construction integrity. Cross-reference the part number against official datasheets to confirm pinout compatibility before integration.

Selection Notes

Select this component when dual J-K flip-flops are required in harsh environments due to its extended temperature range. The ceramic package offers superior reliability compared to plastic variants for aerospace or industrial applications. Verify that the 2 V to 6 V operating range matches the system power supply constraints. Consider the through-hole mounting requirement as it dictates PCB layout and assembly methods.

Part Context

This device belongs to the CD54HC series, which represents high-speed CMOS logic optimized for performance while maintaining backward compatibility with older logic families. The CD54 designation typically indicates a military-grade specification with wider temperature ranges and stricter manufacturing controls compared to commercial counterparts.

Replacement Considerations

CD54HC73F/3A