74LCX07YTTR

Overview

The STMicroelectronics 74LCX07YTTR is a low-voltage CMOS open drain hex buffer manufactured with sub-micron silicon gate and double-layer metal wiring C2MOS technology. It operates within a supply voltage range of 2.0 V to 3.6 V, making it ideal for low-power and high-speed 3.3 V applications. The device features 5 V tolerant inputs, allowing interfacing with 5 V signal environments. It provides symmetrical output impedance with |I OH| = I OL = 24 mA (min) at V CC = 3 V. Key electrical parameters include a propagation delay of 5.2 ns (max) at V CC = 3 V and an operating temperature range from -40 °C to +85 °C. The component is AEC-Q100 qualified and housed in a SOIC-14 package.

Feature Summary

• Features 5 V tolerant inputs for direct interfacing with 5 V signal environments while operating at lower voltages.
• Provides high-speed performance with a maximum propagation delay of 5.2 ns at 3 V supply voltage.
• Offers power-down protection on both inputs and outputs to prevent excessive current draw during standby.
• Includes robust ESD protection circuits providing 2 kV HBM immunity and transient excess voltage tolerance.

Applications

• Low-power and high-speed 3.3 V digital logic applications
• Interfacing between 3.3 V devices and 5 V signal environments
• PCI bus level translation and driving

Procurement Notes

Verify the specific suffix 'YTTR' against official STMicroelectronics documentation to confirm exact packaging and reel specifications. Ensure the part number matches the required automotive qualification status if applicable. Cross-reference the manufacturer's ordering code list to avoid confusion with similar variants like YMTR or MTC. Confirm RoHS compliance and Ecopack3 status as per the latest datasheet revisions before procurement.

Selection Notes

Select this component when designing systems requiring open-drain buffering with 5 V input tolerance. It is suitable for applications needing symmetrical drive strength and low power consumption. Consider the SOIC-14 package constraints and the 2.0 V to 3.6 V operating voltage range. Verify that the 24 mA output current capability meets the load requirements of the destination circuitry.

Part Context

The 74LCX07 belongs to the 74LCX logic family, which offers speed performance comparable to the 5 V AC/ACT family but with significantly lower power consumption. This series is designed for low-voltage CMOS applications. The device is pin and function compatible with standard 74 series 07 buffers, facilitating easy upgrades or replacements in existing designs without major layout changes.

Replacement Considerations

Check for equivalent parts from other manufacturers such as Fairchild Semiconductor's 74LCX07MTC. Ensure any substitute maintains the same open-drain output configuration and 5 V input tolerance. Verify compatibility with the SOIC-14 package and AEC-Q100 automotive qualification if required by the application.