CD74ACT109M

Overview

The CD74ACT109M is a dual positive-edge-triggered J-K flip-flop from the Texas Instruments ACT logic family, housed in a 16-pin SOIC surface-mount package. It operates within a supply voltage range of 2V to 6V and supports clock frequencies up to 60 MHz. The device features an average propagation delay of 20 ns and provides balanced push-pull outputs with a drive strength of 8 mA. Integrated preset and clear functions allow for direct control of output states, while the ACT technology ensures high-speed performance suitable for demanding digital applications.

Feature Summary

• Dual-channel architecture containing two independent positive-edge-triggered J-K flip-flops
• Integrated asynchronous preset and clear inputs for immediate state initialization
• Balanced push-pull output stage providing symmetrical drive capabilities

Applications

• High-speed data storage and register circuits
• Frequency division and counter stages
• State machine implementation in digital systems

Procurement Notes

Verify the specific suffix 'M' indicates the SOIC-16 surface mount package variant. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure design compatibility with the specified 2V to 6V operating voltage range and temperature specifications.

Selection Notes

Select this component when dual J-K functionality with preset and clear controls is required in a compact surface-mount form factor. The ACT series offers superior speed compared to standard HC logic. Verify that the 8 mA drive strength meets load requirements and that the 60 MHz maximum clock frequency aligns with system timing constraints.

Part Context

This part belongs to the Texas Instruments 74ACT logic family, which bridges the performance gap between older TTL and modern CMOS technologies. The CD74 prefix denotes commercial grade temperature ratings. The ACT series is characterized by its high switching speeds and low power consumption relative to comparable legacy logic families.

Replacement Considerations

The SN74HC109 is a functional equivalent within the HC family, though it operates at lower speeds (20 ns delay) and requires a 2V to 6V supply. Verify pinout compatibility and ensure the reduced drive strength of the HC variant meets application needs.