74AC125PC

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74AC125PC is a quad buffer with 3-STATE outputs housed in a 14-Lead Plastic Dual-In-Line Package (PDIP). It operates within a supply voltage range of 2.0V to 6.0V and supports an operating temperature from -40°C to +85°C. The device features non-inverting logic, providing high-level output current of -24mA and low-level output current of 24mA. Propagation delay is typically 9.0ns at 3.3V and 7.0ns at 5.0V.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Contains four independent non-inverting buffers with 3-STATE outputs
• Outputs capable of sourcing and sinking 24mA
• Quiescent supply current reduced by 50% compared to standard AC devices

Buffers, Drivers, Receivers, Transceivers Applications

• General-purpose buffering for digital signal lines
• Driving high-capacitance loads in bus systems
• Interface circuits requiring controlled output impedance

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package type matches the application requirements, as the PDIP variant differs physically from SOIC or TSSOP options. Confirm that the manufacturer designation aligns with current production status, as legacy Fairchild datasheets may not reflect recent onsemi manufacturing changes. Ensure input voltage levels are compatible with the selected supply voltage to maintain valid logic thresholds.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when a through-hole DIP package is required for prototyping or specific board layout constraints. Compare propagation delays and output drive capabilities against other 74AC series variants if higher speed or different packaging is needed. Verify that the 3-state control inputs are properly managed to prevent bus contention in multi-driver configurations.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74AC logic family, characterized by CMOS technology and wide voltage operation. It is functionally similar to the 74ACT125 but lacks TTL-compatible input thresholds. The 'PC' suffix specifically denotes the 14-pin plastic dual-in-line package, distinguishing it from surface-mount alternatives like SC or MTC.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Public confirmed substitute part numbers: 74AC125SC, 74AC125SJ, 74AC125MTC.