CD74HC112NSR

Overview

The CD74HC112NSR is a dual J-K negative-edge-triggered flip-flop manufactured by Texas Instruments in the 74HC logic series. It features a 16-SOIC surface-mount package with a 5.30mm width. The device operates on a supply voltage range of 2V to 6V and supports a maximum clock frequency of 60 MHz. Key electrical parameters include a typical propagation delay of 13ns, an output drive current of ±5.2mA, and a static current of 4µA. It provides independent preset and clear inputs for direct control.

Feature Summary

• Dual independent J-K flip-flops with negative-edge triggering
• Direct asynchronous preset and clear functions
• Wide operating voltage range from 2V to 6V
• High-speed performance with 60 MHz clock capability

Applications

• Digital state storage circuits
• Frequency divider designs
• Shift register construction
• Counter circuit implementation

Procurement Notes

Verify the specific suffix NSR indicates the SOIC-16 tape-and-reel packaging format. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Ensure the supplier provides valid traceability documentation matching the Texas Instruments manufacturer part number for quality assurance purposes.

Selection Notes

Select this component when a surface-mount dual J-K flip-flop is required within the 74HC family. It is suitable for applications needing asynchronous preset and clear controls alongside standard J-K toggle functionality. Consider the 16-SOIC package dimensions and 2V-6V operating range against board space and power supply constraints.

Part Context

This part belongs to the Texas Instruments 74HC logic family, known for CMOS technology and compatibility with TTL inputs. The 74HC112 specifically integrates two J-K flip-flops in a single package. It serves as a fundamental building block for sequential logic systems requiring reliable data storage and transition management in digital electronics.

Replacement Considerations

SN74HC112N (PDIP-16 equivalent)

FAQ

How does the CD74HC112NSR handle asynchronous inputs?

The device includes active-low preset (/PRE) and clear (/CLR) inputs that override other inputs to set or reset outputs immediately.

What is the trigger mechanism for this flip-flop?

Data is transmitted to the output on the negative-going edge (falling edge) of the clock pulse.