CD74HC125QM96G4Q1

Overview

The CD74HC125QM96G4Q1 is an automotive-grade quadruple buffer and line driver from Texas Instruments, belonging to the HC logic family. It features four non-inverting channels with three-state outputs, housed in a 14-pin SOIC package. The device operates within a supply voltage range of 2 V to 6 V. Key electrical specifications include a low-level output current of 7.8 mA and a high-level output current of -7.8 mA. Static current consumption is specified at 8 µA, while operating supply current reaches 80 µA. The component supports a wide operating temperature range from -40°C to +125°C.

Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for enhanced reliability in vehicle environments.
• Provides three-state outputs allowing multiple drivers to share a bus without interference.
• High-speed CMOS technology ensures fast propagation delays suitable for demanding digital applications.
• Wide operating temperature range supports functionality in extreme thermal conditions.

Applications

• Automotive electronic systems requiring robust signal buffering
• Bus-oriented memory and data transmission circuits
• High-speed digital signal processing interfaces

Procurement Notes

Verify the complete part number including suffixes such as G4 and Q1 to ensure correct packaging, lead-free status, and automotive grade certification. Confirm that the specific variant matches your design requirements for package type and temperature rating before ordering. Cross-reference official datasheets for any recent updates to mechanical dimensions or electrical characteristics.

Selection Notes

Select this component when designing automotive circuits that require high-speed buffering with three-state capability. Ensure the system voltage falls within the 2 V to 6 V range. Consider the SOIC-14 package constraints for PCB layout. Verify that the required output drive current does not exceed the specified limits under all operating conditions.

Part Context

This device is part of the SN74HC125-Q1 series, designed specifically for automotive applications. It serves as a quadruple buffer with three-state outputs, enabling efficient data routing in complex digital systems. The HC logic family offers compatibility with standard TTL levels while providing improved speed and lower power consumption compared to older logic families.

Replacement Considerations

Check for direct equivalents within the same automotive-qualified HC series. Verify pinout compatibility and electrical parameters such as output current and propagation delay. Ensure any substitute maintains the required AEC-Q100 qualification if automotive reliability is mandatory.

FAQ

What is the logic polarity of the CD74HC125QM96G4Q1?

The device consists of four non-inverting buffers, meaning the output state follows the input state directly.

Does this component support three-state operation?

Yes, each of the four channels has a three-state output controlled by an enable input, allowing the outputs to be high, low, or high-impedance.