CD74HCT107E

Overview

The CD74HCT107E is a dual J-K flip-flop manufactured by Harris Corporation, belonging to the 74HCT logic family. It operates within a supply voltage range of 4.5V to 5.5V and features negative-edge triggering with reset functionality. The device utilizes HCT-CMOS technology and is housed in a 14-pin DIP package. It supports a maximum clock frequency of 56 MHz at 4.5V with a 50pF load, exhibiting a maximum propagation delay of 43ns under these conditions. The operational temperature range spans from -55°C to 125°C.

Feature Summary

• Dual J-K flip-flop configuration with independent reset controls for each element
• Negative-edge triggered operation ensuring precise timing synchronization
• Hysteresis on clock inputs designed to improve noise immunity and manage input rise/fall times

Applications

• High-speed data handling systems requiring reliable state storage
• Digital control circuits utilizing negative-edge triggered logic
• Timing applications where improved noise immunity is critical

Procurement Notes

Verify component authenticity as the datasheet was acquired from Harris Semiconductor and may be hosted by Texas Instruments. Confirm RoHS compliance status, as documentation indicates non-compliance. Ensure the specific Harris Corporation manufacturing origin matches project requirements rather than assuming current Renesas or TI production without explicit verification.

Selection Notes

Select this component when a dual J-K flip-flop with negative-edge triggering is required for high-speed digital designs. The HCT logic level compatibility ensures interoperability with standard TTL-driven systems while maintaining CMOS power efficiency. Consider the 14-pin DIP package for through-hole assembly needs and verify that the 56 MHz performance meets system clock constraints.

Part Context

This component is part of the broader 74HCT series of logic devices, which bridges the gap between HC (High-speed CMOS) and standard TTL logic families. Originally produced by Harris Semiconductor, the product line has been integrated into Texas Instruments' portfolio. The CD74HCT107E specifically addresses applications needing robust flip-flop functionality with enhanced noise characteristics compared to standard HC variants.

Replacement Considerations

The CD74HCT107M serves as a surface-mount alternative within the same functional family. Verify pinout compatibility and electrical specifications before substituting the DIP package with the SOP variant.