74ABT125CSJX

Buffers, Drivers, Receivers, Transceivers Overview

The Fairchild Semiconductor 74ABT125CSJX is a quad bus buffer featuring non-inverting logic and three-state outputs. It operates within a supply voltage range of 4.5 V to 5.5 V. The device provides high drive capability with an output sink current of 64 mA and a source current of 32 mA. Propagation delay is specified at 4.6 ns. It utilizes a 14-lead Small Outline Integrated Circuit (SOIC) package, adhering to JEDEC MS-012 standards with a 0.150-inch narrow profile. The component supports surface mount installation and functions across an operating temperature range from -40°C to +85°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Features four independent non-inverting buffers with three-state outputs for effective bus management.
• Provides high impedance during power-up and power-down cycles to prevent bus contention.
• Supports nondestructive hot insertion capabilities for system reliability.

Buffers, Drivers, Receivers, Transceivers Applications

• High-speed data bus buffering in computing systems
• Clock distribution networks requiring low propagation delay
• Memory interface circuits utilizing three-state control

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix CSJX against official Fairchild or onsemi documentation to confirm the exact SOIC-14 package variant and tape-and-reel specifications. Ensure compatibility with existing board layouts regarding pin pitch and thermal requirements. Confirm RoHS compliance status through current manufacturer declarations as product lines may transition between suppliers.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing 5V logic interfaces requiring strong drive strength and controlled output states. The ABT series offers superior speed compared to standard LS logic while maintaining compatible voltage levels. Evaluate the 4.6 ns propagation delay against system timing constraints to ensure signal integrity across the bus architecture.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74ABT logic family, which combines the speed of advanced bipolar technology with CMOS power efficiency. The 74ABT125 specifically addresses applications needing buffered signals with tri-state functionality. Fairchild Semiconductor, now part of onsemi, produced this series for industrial and commercial electronic designs requiring robust digital signal handling.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Public confirmed substitute part numbers include SN74ABT125DR from Texas Instruments and 74ABT125PW from Nexperia. Verify pinout compatibility and electrical parameters before substitution.