74ABT125D,602

Buffers, Drivers, Receivers, Transceivers Overview

The NXP USA Inc. 74ABT125D,602 is a quad buffer and line driver featuring 3-state outputs controlled by active-low output enable inputs (nOE). It utilizes BiCMOS technology to provide high-speed performance and robust output drive capabilities within a supply voltage range of 4.5 V to 5.5 V. The device incorporates IOFF circuitry to support partial power-down applications by disabling outputs and preventing damaging backflow currents when the device is unpowered. It operates reliably across an ambient temperature range from -40 °C to +85 °C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Features integrated IOFF circuitry that disables outputs during power-off states to prevent potentially damaging backflow current through the device in partial power-down applications.
• Provides direct interface compatibility with TTL logic levels while maintaining high-speed operation and strong output drive characteristics suitable for driving bus lines.
• Supports live insertion and extraction operations without system disruption due to its 3-state buffer design and specific input disable behavior during the OFF-state mode.

Buffers, Drivers, Receivers, Transceivers Applications

• Partial power-down systems requiring isolation of powered-down components
• High-speed bidirectional bus buffering and line driving
• Live insertion and extraction peripheral interfaces

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the exact ordering suffix against the manufacturer's latest documentation to confirm package type and tape-and-reel specifications. Confirm RoHS compliance status and ensure the component meets the required operating temperature range for your specific application environment before finalizing procurement orders.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems that require isolated bus drivers capable of handling live insertion scenarios. Ensure the design accommodates the specified 4.5 V to 5.5 V supply voltage range and verify that the SO14 plastic small outline package dimensions fit the available PCB real estate constraints.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74ABT logic family, which combines Bipolar and CMOS technologies for enhanced speed and drive strength compared to standard CMOS variants. The 74ABT125 specifically functions as a non-inverting quad buffer with independent output enables, serving as a critical interface element between microprocessors and high-capacitance buses.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Cross-reference with other manufacturers' 74ABT125 equivalents such as SN74ABT125 or 74FCT125. Verify pinout compatibility and electrical parameter alignment, particularly regarding output drive current and propagation delay specifications, before substituting.