CD4027BD

Overview

The CD4027BD is a CMOS Dual J-K Master-Slave Flip-Flop belonging to the 4000/14000/40000 series. It features two independent flip-flops with set and reset inputs, operating asynchronously. The device utilizes negative edge triggering for clock synchronization. It supports a wide supply voltage range of 3V to 18V and operates within a temperature range of -55°C to 125°C. The component is housed in a 16-pin DIP package.

Feature Summary

• Dual J-K master-slave flip-flop architecture
• Asynchronous set and reset control inputs
• Negative edge triggered clock operation

Applications

• Binary counting circuits
• Frequency division networks
• Data storage registers

Procurement Notes

Verify manufacturer origin as Harris Corporation or successor entities like Intersil/TI due to legacy status. Confirm package type matches DIP-16 requirements. Check RoHS compliance status as older Harris batches may not meet current environmental standards. Validate pinout compatibility with existing PCB layouts before integration.

Selection Notes

Select this component for applications requiring dual independent bistable elements in a single package. Ensure supply voltage remains within 3V to 18V limits. Consider propagation delay characteristics for timing-sensitive designs. Verify thermal performance for high-temperature environments up to 125°C.

Part Context

Part of the standard 4000-series CMOS logic family, widely used in industrial and military applications. Harris Corporation was a primary manufacturer before acquisitions by Intersil and subsequently Texas Instruments. The CD4027 variant provides robust noise immunity and low power consumption typical of CMOS technology.

Replacement Considerations

• CD4027B
• MC14027B
• TC4027BP