MC74ACT125DR2G

Overview

The MC74ACT125DR2G is a quad 3-state buffer manufactured by onsemi using high-performance silicon-gate CMOS technology. It operates within a supply voltage range of 4.5 V to 5.5 V and features TTL-compatible inputs. The device provides four non-inverting buffers with low-enable control, housed in a 14-lead SOIC package. Key electrical characteristics include an output current capability of ±24 mA and propagation delays ranging from 1.0 ns to 10 ns at 5.0 V with a 50 pF load.

Feature Summary

• Features TTL-compatible inputs for direct interfacing with TTL logic systems
• Provides three-state outputs controlled by a low-active enable signal
• Capable of sourcing and sinking significant output currents

Applications

• Buffering memory address registers
• Driving bus-oriented circuits
• Clock distribution networks

Procurement Notes

Verify the specific ordering suffix 'DR2G' corresponds to the SOIC-14 package and tape-and-reel shipping configuration. Confirm that the ACT logic family requirements align with the target system's 5V operating voltage and input threshold specifications before finalizing procurement.

Selection Notes

Select this component when TTL-compatible inputs are required alongside high-speed CMOS performance. Ensure the application utilizes a 5V supply rail, as the AC variant supports wider voltage ranges while the ACT variant is optimized for standard 5V operation with defined TTL thresholds.

Part Context

This part belongs to the MC74AC(T)125 series of quad buffers. It shares functional similarities with the MC74AC125 but differs in input compatibility. The DR2G designation indicates surface-mount packaging in a reel format, distinguishing it from tube-packaged variants like the DG suffix.

Replacement Considerations

MC74AC125DR2G serves as a compatible alternative if TTL input thresholds are not strictly required. Verify package dimensions and pinout compatibility before substitution.