MC74ACT74DTR2G

Flip Flops Overview

The MC74ACT74DTR2G is a dual D-type positive edge-triggered flip-flop from the 74ACT logic series, manufactured by onsemi. It operates within a supply voltage range of 4.5 V to 5.5 V and features asynchronous set and clear inputs with complementary outputs (Q and Q̅). The device provides high output drive capability with source/sink currents of 24 mA each. It exhibits a maximum propagation delay of 9 ns at 5 V with 50 pF load and has a static current consumption of 4 µA. Packaged in a 14-TSSOP surface-mount case, it supports an operating temperature range of -55°C to +125°C.

Flip Flops Feature Summary

• Features TTL-compatible input thresholds for seamless integration with standard TTL logic circuits.
• Provides robust output drive strength with 24 mA source and sink current capabilities.
• Includes asynchronous set and clear functions that operate independently of the clock signal.

Flip Flops Applications

• Data storage and register applications requiring reliable state retention.
• Timing control circuits utilizing positive edge-triggered data transfer.
• Digital systems interfacing between TTL and CMOS logic domains.

Flip Flops Procurement Notes

Verify the complete part number including the trailing 'G' suffix to ensure compliance with RoHS standards and lead-free manufacturing requirements. Confirm the TSSOP-14 package variant matches the design footprint. Check official datasheets for specific switching characteristics under intended load conditions. Ensure thermal management aligns with the specified -55°C to +125°C operating range for industrial or automotive environments.

Flip Flops Selection Notes

Select this component when TTL-level input compatibility is required alongside AC-series speed performance. The 74ACT family bridges the voltage threshold gap between older TTL systems and modern CMOS designs. Consider the 24 mA output drive if driving multiple loads or longer traces without additional buffering. The wide temperature range makes it suitable for harsh industrial applications compared to commercial-grade alternatives.

Flip Flops Part Context

This device belongs to the 74ACT series, which combines the speed of AC logic with the input compatibility of ACT standards. It serves as a fundamental building block for sequential logic in digital electronics. The dual configuration allows two independent bits of storage within a single compact package, optimizing board space for complex microcontroller or FPGA peripheral expansions.

Flip Flops Replacement Considerations

MC74AC74DTR2G

Flip Flops FAQ

How does the asynchronous clear function behave relative to the clock?

The asynchronous clear input forces the Q output low regardless of the clock signal state or data input, overriding normal clock-triggered operation.

What is the input threshold characteristic of this device?

The MC74ACT74DTR2G features TTL-compatible input thresholds, allowing direct interfacing with standard 5V TTL logic sources without level shifting.