74HC112DB,118

Overview

The 74HC112DB,118 is a dual negative-edge triggered JK flip-flop manufactured by Nexperia USA Inc. 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 2 V to 6 V. It supports a maximum propagation delay of 20 ns at 5 V with 50 pF load. Output drive capability is specified at 5.2 mA for both high and low states. The component is housed in a 14-SSOP package and functions across an operating temperature range of -40 °C to +125 °C.

Feature Summary

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

Applications

• Digital state storage and memory elements in sequential logic circuits
• Frequency division and counter circuit implementations
• Data shift register configurations requiring parallel output availability
• Event synchronization and debouncing applications utilizing asynchronous control

Procurement Notes

Verify component authenticity through authorized Nexperia distributors or certified partners. Confirm that the specific suffix matches the SSOP-14 package variant. Check current lifecycle status as manufacturing changes may occur. Ensure environmental compliance documentation aligns with project requirements. Validate pinout compatibility against existing schematic designs before integration.

Selection Notes

Select this component when dual JK functionality with asynchronous control is required in a compact surface-mount form factor. The HC series ensures CMOS level input compatibility suitable for standard logic interfaces. Consider the propagation delay specifications relative to system timing constraints. Verify that the wide supply voltage range meets the target application power requirements.

Part Context

This part belongs to the Nexperia 74HC family of high-speed CMOS logic devices. It implements the standard 74HC112 logical function within a dual flip-flop configuration. The DB suffix indicates the specific SSOP-14 packaging style used for surface mount assembly. It serves as a fundamental building block for complex digital systems requiring reliable state retention and controlled toggling behavior.

Replacement Considerations

Direct substitutes include the 74HCT112 variants for TTL-compatible input levels. Other manufacturers offer equivalent dual JK flip-flops in compatible packages. Verify pinout and electrical characteristics match before substitution. Ensure the replacement supports the required asynchronous set and reset functionality.