CD74HC112PWR

Overview

The CD74HC112PWR is a dual J-K flip-flop from Texas Instruments' 74HC logic family, housed in a 16-pin TSSOP surface-mount package. It features two independent negative-edge triggered circuits with active-low clear (/CLR) and preset (/PRE) inputs. The device operates on a supply voltage range of 2V to 6V, supporting CMOS and LV-TTL input levels. Key electrical parameters include a maximum propagation delay of 30ns at 6V with 50pF load, output drive currents of ±5.2mA, and a static current of 4µA. It functions as a toggle when J and K are tied high.

Feature Summary

• Dual independent negative-edge triggered J-K flip-flops
• Active-low asynchronous clear and preset controls
• Wide operating voltage range from 2V to 6V
• CMOS compatible with LV-TTL input thresholds

Applications

• Parallel data storage registers
• Shift register construction
• Frequency division circuits
• State machine implementation

Procurement Notes

Verify the specific suffix 'PWR' corresponds to the TSSOP-16 surface-mount package variant rather than the PDIP or SOIC versions. Confirm RoHS compliance status and moisture sensitivity level (MSL 1) requirements for your assembly process. Ensure the ordering information matches the exact manufacturer part number to avoid pinout discrepancies between package types.

Selection Notes

Select this component for designs requiring compact surface-mount integration of dual J-K functionality. The TSSOP-16 package offers space efficiency compared to through-hole alternatives. Consider the 2V-6V operating range for compatibility with various logic levels. Verify that the 30ns propagation delay meets the timing constraints of the target application circuit.

Part Context

This part belongs to the Texas Instruments 74HC series, known for high-speed CMOS operation and wide voltage flexibility. The 74HC112 specifically provides dual J-K flip-flops, distinct from other families like 74HCT which require 5V logic. It serves as a fundamental building block for sequential logic design within the broader standard logic IC ecosystem.

Replacement Considerations

Compatible substitutes include SN74HC112N (PDIP), CD74HC112NSR (SOIC), and equivalent parts from Nexperia or ON Semiconductor. Ensure the replacement maintains the same TSSOP-16 footprint and electrical specifications if pin-to-pin interchangeability is required.