CD74HCT109M

Overview

The CD74HCT109M is a dual J-K flip-flop from the Texas Instruments HCT logic series, housed in a surface-mount SOIC-16 package. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature range of -55°C to +125°C. The device features single-ended inputs and differential outputs with a propagation delay of 40 ns. Output drive capabilities include a high-level current of -4 mA and a low-level current of 4 mA.

Feature Summary

• Dual J-K flip-flop configuration with set and reset functionality
• CMOS technology compatible with TTL input levels
• Wide industrial operating temperature range

Applications

• Digital data storage circuits
• Frequency division applications
• Shift register construction

Procurement Notes

Verify that the specific part number suffix corresponds to the required SOIC-16 surface mount package variant. Confirm RoHS compliance status for environmental regulations. Ensure the supplier provides valid traceability documentation for the manufacturing lot. Cross-reference the manufacturer's latest datasheet to confirm pinout compatibility and electrical specifications before finalizing procurement orders.

Selection Notes

Select this component when dual independent J-K flip-flops are required in a compact surface-mount format. The HCT series ensures compatibility with standard 5V CMOS logic families while providing robust noise immunity. Consider the wide temperature range for harsh environments. Verify that the 40 ns propagation delay meets the system timing requirements for the intended digital application.

Part Context

This component belongs to the Texas Instruments CD74HCT109 family of dual J-K flip-flops. It is part of the broader 74HCT logic line designed for high-speed CMOS operation with TTL-compatible inputs. The M suffix typically denotes the SOIC-16 surface-mount package variant, distinguishing it from through-hole PDIP versions within the same logical family.

Replacement Considerations

CD74HCT109MG4