CD74HC112NS

Overview

The CD74HC112NS is a dual J-K negative-edge-triggered flip-flop in the HC logic family, housed in a 16-SOIC surface-mount package. It operates on a supply voltage range of 2 V to 6 V with a maximum clock frequency of 60 MHz. The device features independent clear (/CLR) and preset (/PRE) inputs that function asynchronously regardless of other input levels. Typical propagation delay is 26 ns, with output drive capabilities of ±5.2 mA at 6 V. It supports through-hole or surface-mount installation styles depending on variant, though this specific model is SOIC.

Feature Summary

• Dual negative-edge-triggered J-K flip-flops with asynchronous clear and preset controls
• Wide operating voltage range from 2 V to 6 V for flexible system integration
• High-speed operation with a maximum clock frequency of 60 MHz
• Low power consumption with typical static current of 4 µA

Applications

• Server systems
• LED display controllers
• Network switch interfaces
• Telecommunications infrastructure
• Motor driver control circuits

Procurement Notes

Verify the exact suffix against the manufacturer datasheet to confirm pinout compatibility and electrical specifications. Ensure the selected variant matches the required package type and temperature rating for your specific application environment. Cross-reference ordering information with official Texas Instruments documentation to avoid discrepancies in component functionality.

Selection Notes

Select this component when dual J-K flip-flops are required in a compact surface-mount format. Consider the 2 V to 6 V operating range for compatibility with various logic families. Evaluate the 60 MHz clock speed against system timing requirements. Verify that the SOIC-16 package fits within the available PCB area constraints.

Part Context

This part belongs to the Texas Instruments SN/CD74HC112 series of dual J-K flip-flops. It is designed for high-speed digital applications requiring reliable state storage and transition control. The HC series offers CMOS compatibility with LSTTL load driving capabilities, making it suitable for mixed-logic environments.

Replacement Considerations

SN74HC112N (PDIP-16)

FAQ

How do the clear and preset inputs function?

The /CLR and /PRE inputs are active-low and asynchronous. A low level on either input will immediately reset or set the output, overriding the J, K, and clock inputs.

What is the maximum clock frequency?

The maximum clock frequency for the CD74HC112NS is 60 MHz.