74HCT112D,652

Overview

The 74HCT112D,652 is a dual negative-edge triggered JK flip-flop with set and reset inputs. It features individual J and K inputs, clock (nCP), asynchronous active LOW set (nSD) and reset (nRD) inputs, and complementary nQ and Q outputs. The device operates within a supply voltage range of 2V to 6V for the HC series or 4.5V to 5.5V for the HCT series, ensuring TTL level compatibility for the HCT variant. It supports operation from -40°C to +85°C and up to +125°C.

Feature Summary

• Dual negative-edge triggered JK flip-flops with independent J and K inputs
• Asynchronous active LOW set and reset inputs operating independently of the clock
• Schmitt-trigger action on the clock input for tolerance to slow rise and fall times
• Complementary nQ and Q outputs with clamp diodes on inputs

Applications

• Digital state storage in sequential logic circuits
• Frequency division and counter applications
• Data shift register construction
• Timing control systems requiring asynchronous preset/clear functions

Procurement Notes

Verify component authenticity through authorized Nexperia distributors or direct manufacturer channels. Confirm the specific suffix matches the required package and temperature grade. Check current product longevity status as availability may vary based on manufacturing lifecycle updates. Ensure compliance with relevant RoHS and REACH regulations for your region.

Selection Notes

Select this component when dual JK functionality with asynchronous control is required. The HCT logic family ensures compatibility with standard TTL logic levels. Consider the operating temperature range and supply voltage requirements relative to the system environment. Verify pinout compatibility if replacing existing designs.

Part Context

This part belongs to the Nexperia 74HCT series of high-speed CMOS logic devices. It is functionally compatible with other 74HCT112 variants but distinguished by its specific SOIC-16 packaging and commercial/industrial temperature ratings. It serves as a fundamental building block for complex digital systems requiring reliable bistable memory elements.

Replacement Considerations

• 74HCT112D,653
• 74HC112D,653

FAQ

Are the set and reset inputs synchronous or asynchronous?

The set and reset inputs are asynchronous and active LOW, meaning they operate independently of the clock signal.

What is the trigger type for the clock input?

The device uses a negative-edge trigger, meaning state changes occur on the HIGH-to-LOW transition of the clock signal.

Does the clock input have Schmitt-trigger action?

Yes, the clock input includes Schmitt-trigger action, making the circuit highly tolerant to slower clock rise and fall times.