MC74VHC125DR2G

Overview

The MC74VHC125DR2G is a quad buffer and line driver manufactured by onsemi, belonging to the 74VHC logic series. It features four non-inverting channels with three-state outputs housed in a 14-SOIC package. The device operates within a supply voltage range of 2 V to 5.5 V. Key electrical specifications include high-level and low-level output currents of 8 mA each. The static current is specified at 2 uA, while the operating supply current reaches 40 uA. Power dissipation is rated at 200 mW. Propagation delay is 10.6 ns. The component supports surface mount installation and functions reliably across an ambient temperature range of -55°C to +125°C.

Feature Summary

• Provides four independent non-inverting buffer channels with three-state output control for bus-oriented applications.
• Utilizes advanced CMOS technology to achieve high-speed performance with low power consumption characteristics.
• Features robust output drive capability suitable for interfacing with various digital logic families.

Applications

• Bus-oriented systems requiring signal buffering and isolation
• Clock distribution networks for timing signals
• Memory address and data bus drivers

Procurement Notes

Verify the specific ordering suffix DR2G corresponds to the SOIC-14 package and tape-and-reel packaging configuration. Confirm RoHS compliance status and manufacturing origin details through official onsemi documentation prior to integration. Ensure compatibility with existing PCB footprint dimensions and thermal management requirements for the selected enclosure type.

Selection Notes

Select this component when designing circuits that require quad buffering with three-state functionality within a 2 V to 5.5 V supply range. The 74VHC series offers speed comparable to 74AC devices but with CMOS input compatibility. Consider the 10.6 ns propagation delay and 8 mA drive strength against system timing constraints and load requirements.

Part Context

This part belongs to the MC74VHC125 family of quad buffers with three-state outputs. It shares functional similarities with other 74VHC logic devices but is distinct from HC or AC variants due to its specific speed and voltage characteristics. The DR2G suffix indicates surface-mount packaging in a reel format, distinguishing it from tube-packaged alternatives.

Replacement Considerations

MC74VHC125DTR2G

FAQ

What is the logic polarity of the MC74VHC125DR2G?

The device consists of four non-inverting buffers, meaning the output signal follows the input signal phase without inversion.

Does the MC74VHC125DR2G support three-state operation?

Yes, all four channels feature three-state outputs, allowing the lines to be disconnected from the bus via an enable control signal.