74LCX74MTR

Overview

The 74LCX74MTR is a low-voltage CMOS dual D-type flip-flop manufactured by STMicroelectronics. It features 5V tolerant inputs, allowing safe interfacing with 5V signal environments while operating at lower voltages. The device operates within a supply voltage range of 2.0 V to 3.6 V and supports a maximum clock frequency of 150 MHz at VCC = 3 V. It includes power-down protection on inputs and outputs, symmetrical output impedance with a minimum drive current of 24 mA, and latch-up performance exceeding 500 mA. The component is housed in an SO-14 package and is qualified for automotive applications under AEC-Q100 standards.

Feature Summary

• Dual D-type flip-flop configuration with 5V tolerant inputs for mixed-voltage system integration
• High-speed operation supporting clock frequencies up to 150 MHz at 3V supply
• Power-down protection on both inputs and outputs to prevent excessive current draw during standby

Applications

• Digital data storage and shift register circuits in consumer electronics
• Interface logic between 5V microcontrollers and 3.3V peripheral devices
• Automotive electronic control units requiring AEC-Q100 qualified components

Procurement Notes

Verify the specific suffix 'MTR' against the manufacturer's official documentation to confirm tape-and-reel packaging and quantity specifications. Ensure the component meets AEC-Q100 automotive grade requirements if intended for automotive applications. Cross-reference the datasheet revision date to confirm compatibility with current design standards and pinout configurations.

Selection Notes

Select this component when a dual D-type flip-flop with 5V input tolerance is required for low-power, high-speed digital logic applications. It is suitable for designs operating between 2.0 V and 3.6 V that need robust ESD protection and symmetrical drive strength. Consider its automotive qualification if the application demands high reliability in vehicle environments.

Part Context

The 74LCX74MTR belongs to the 74LCX family of low-voltage CMOS logic devices from STMicroelectronics. This series is designed for high-speed, low-power applications in portable and battery-operated systems. The device is functionally compatible with standard 74 series logic but offers improved performance at lower supply voltages, making it ideal for modern mixed-voltage digital designs.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.