74HCT109D-Q100J

Overview

The Nexperia 74HCT109D-Q100J is a dual positive-edge-triggered JK flip-flop with asynchronous set and reset inputs, housed in an SOIC-16 package. It operates within a supply voltage range of 4.5 V to 5.5 V, featuring a propagation delay of 17 ns. The device supports low-level output currents of 5.2 mA and high-level output currents of -5.2 mA. It functions reliably across temperatures from -40 °C to +125 °C and holds AEC-Q100 qualification for automotive applications.

Feature Summary

• Dual positive-edge-triggered JK flip-flops with individual J and K inputs
• Asynchronous active LOW set and reset inputs independent of clock
• Schmitt-trigger action on clock input for noise tolerance
• TTL-compatible input levels for direct interfacing

Applications

• Automotive digital logic circuits requiring AEC-Q100 compliance
• Frequency division and counter circuits using toggle mode
• Data storage registers in industrial control systems
• Shift register configurations for signal processing

Procurement Notes

Verify the specific suffix 'Q100J' against official Nexperia documentation to confirm AEC-Q100 automotive qualification status and tape-and-reel packaging specifications. Ensure the SOIC-16 package variant matches design footprint requirements. Cross-reference lead times and RoHS compliance details directly with authorized distributors or manufacturer datasheets prior to ordering.

Selection Notes

Select this component when TTL-level interface compatibility is required alongside CMOS performance characteristics. The dual configuration reduces board space compared to single flip-flops. Verify that the 17 ns propagation delay meets system timing constraints. Confirm that the -40 °C to +125 °C operating range aligns with environmental conditions. Consider the asynchronous set/reset functionality for immediate state control needs.

Part Context

This part belongs to the Nexperia 74HCT series, designed for high-speed CMOS operation with TTL-compatible inputs. The HCT series bridges legacy TTL systems with modern CMOS technology. The Q100 designation indicates automotive-grade reliability standards. The D suffix specifies the surface-mount SOIC-16 package type, suitable for automated assembly processes.

Replacement Considerations

Direct substitutes include other 74HCT109 variants from manufacturers like NXP Semiconductors or STMicroelectronics, provided they match the SOIC-16 package and electrical parameters. Verify pinout compatibility and functional equivalence before substitution.