MC74AC125DG

Overview

The MC74AC125DG is a quad 3-state buffer manufactured by onsemi, utilizing high-performance silicon-gate CMOS technology. It operates within a supply voltage range of 2.0 V to 6.0 V and supports an operating ambient temperature from -40°C to +85°C. The device features four non-inverting inputs and outputs capable of sourcing or sinking up to 24 mA. Propagation delay is specified at 9 ns maximum at 3.3 V and 7 ns maximum at 5.0 V with a 50 pF load. Quiescent supply current is typically 8 µA.

Feature Summary

• Provides four independent non-inverting buffers with 3-state output capability for bus-oriented systems
• Features low enable inputs that control the state of the outputs independently
• Capable of driving loads with high current sourcing and sinking capabilities

Applications

• Bus-oriented systems requiring signal buffering
• Clock distribution circuits
• Memory data register applications

Procurement Notes

Verify the specific ordering suffix 'DG' corresponds to the SOIC-14 package configuration as listed in the manufacturer's ordering information. Confirm compliance requirements such as RoHS status and Pb-Free designation directly against the product datasheet specifications before finalizing procurement orders.

Selection Notes

Select this component when a quad buffer with 3-state functionality is required for digital logic interfacing. Ensure the system supply voltage falls within the 2.0 V to 6.0 V operational range. Consider the propagation delay characteristics relative to the target clock frequencies and ensure thermal dissipation limits are respected during operation.

Part Context

This part belongs to the MC74AC125 series of logic integrated circuits produced by onsemi. It is designed as a high-speed CMOS buffer compatible with standard logic families. The device serves as a fundamental building block for digital signal routing and isolation in electronic designs.

Replacement Considerations

MC74AC125DR2G (Tape & Reel variant)

FAQ

What is the function of the enable input?

The enable input controls the 3-state output. When active, the buffer passes the input signal to the output; when inactive, the output enters a high-impedance state.

Is the MC74AC125DG lead-free?

Yes, the datasheet specifies that these devices are Pb-Free.