74LCX07SJ

Overview

The onsemi 74LCX07SJ is a low voltage hex buffer with open drain outputs, housed in a 14-lead Small Outline Package (SOP) measuring 5.3mm wide. It operates within a supply voltage range of 2.0V to 5.5V and supports an operating temperature from -40°C to +85°C. The device features 5V tolerant inputs capable of interfacing with 7V systems. Key electrical parameters include a maximum propagation delay of 3.7ns at VCC=3.3V with 50pF load, a quiescent supply current of 10µA max, and output drive capabilities up to +32mA at VCC=4.5V–5.5V.

Feature Summary

• Features five-volt tolerant inputs allowing direct interface between 5V and 3V logic systems.
• Provides open drain outputs suitable for implementing active HIGH wire AND or active LOW wire OR functions.
• Incorporates proprietary noise and EMI reduction circuitry for improved signal integrity.
• Delivers high-speed operation while maintaining CMOS low power dissipation characteristics.

Applications

• Interface buffering between 5V and 3V digital systems
• Implementing active HIGH wire AND logic configurations
• Implementing active LOW wire OR logic configurations

Procurement Notes

Verify the specific ordering suffix against official documentation, as Fairchild part numbers containing underscores may have been updated to dashes under ON Semiconductor nomenclature. Confirm package dimensions match the 5.3mm wide SOP specification. Ensure compliance with JEDEC lead-free standards and verify that unused inputs are not left floating during operation.

Selection Notes

Select this component when open drain output topology is required for wired logic applications. It is appropriate for designs needing 5V tolerance on inputs while operating at lower voltages. Consider the 14-pin SOP form factor for space-constrained surface mount layouts requiring standard narrow body packaging.

Part Context

This device belongs to the LCX series of low voltage CMOS logic components. It is manufactured by ON Semiconductor following the integration of Fairchild Semiconductor. The product line focuses on providing high-speed performance with reduced power consumption compared to older logic families.

Replacement Considerations

Check for equivalent parts such as MC74LCX07DTR2G or 74LCX07MTC which share similar logical functions but differ in package type. Verify pin compatibility and electrical specifications before substitution.

FAQ

Can the inputs tolerate voltages higher than the supply voltage?

Yes, the inputs are 5V tolerant and can handle voltages up to 7V, allowing them to interface with 5V systems even when the device is powered at lower voltages.

What is the function of the open drain outputs?

The open drain outputs allow multiple devices to be connected together to implement active HIGH wire AND or active LOW wire OR logic functions.