MC74AC125NG

Overview

The MC74AC125 is a quad 3-state buffer manufactured by onsemi using high-performance silicon-gate CMOS technology. It operates within a supply voltage range of 2.0 V to 6.0 V and features low enable inputs. The device provides four non-inverting buffers with three-state outputs capable of sourcing or sinking up to 24 mA. Propagation delays are specified at 9 ns maximum at 3.3 V and 7 ns maximum at 5.0 V, measured with a 50 pF load.

Feature Summary

• Quad 3-state buffering with low active-enable control
• High drive capability supporting 24 mA source and sink currents
• Compatible with standard CMOS logic families across wide voltage ranges

Applications

• Bus-oriented memory and signal switching applications
• Clock drivers and buffer circuits
• Multiple bus transceivers

Procurement Notes

Verify the specific package suffix (e.g., DG for SOIC-14) against the required footprint. Confirm RoHS compliance status as indicated in ordering information. Ensure the selected variant matches the intended operating temperature range and voltage requirements before finalizing procurement.

Selection Notes

Select this component for designs requiring multiple buffered signals with controllable output states. The AC series offers wider voltage flexibility compared to ACT variants. Verify that input thresholds align with the driving logic family, particularly if interfacing with lower voltage sources.

Part Context

This part belongs to the MC74AC125 logic IC family produced by onsemi. It is categorized under buffers and line drivers within the broader standard product portfolio. The device serves as a fundamental building block for digital signal routing and isolation in mixed-signal systems.

Replacement Considerations

MC74ACT125DG: Offers TTL-compatible input thresholds but requires a stricter 4.5 V to 5.5 V supply range. MC74AC125DR2G: Identical electrical performance packaged in tape and reel format instead of tube.