SN74ALS29863NT

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ALS29863NT is a 9-bit bus transceiver designed for asynchronous two-way communication between data buses. It operates within a supply voltage range of 4.75 V to 5.25 V and supports an operating free-air temperature range from 0°C to 70°C. The device features four output-enable inputs (OEAB1, OEAB2, OEBA1, OEBA2) that control data transmission direction or isolation. Propagation delay is typically 8 ns at 50 pF load and 15 ns at 300 pF load. High-level output current reaches -24 mA, while low-level output current provides 48 mA.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports asynchronous bidirectional data transfer between A and B buses
• Offers flexible timing control via multiple independent output-enable inputs
• Provides power-up high-impedance state for safe initialization

Buffers, Drivers, Receivers, Transceivers Applications

• Asynchronous communication interfaces between data buses
• High-speed data routing in digital systems
• Bus isolation and direction control applications

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package type required, as the NT suffix denotes a standard plastic DIP. Confirm RoHS compliance status if environmental regulations apply to your design. Ensure the operating temperature range meets your system requirements. Check for functional equivalence with AMD AM29863 if cross-vendor compatibility is needed. Validate pinout alignment during integration.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring 9-bit wide asynchronous data paths. Consider the ALS series speed and power characteristics relative to other logic families. Evaluate the multiple enable inputs for complex bus arbitration needs. Verify that the 5V supply voltage aligns with your system architecture. Assess thermal management requirements for the chosen package style.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the Texas Instruments ALS (Advanced Low-power Schottky) logic family. It is functionally equivalent to the AMD AM29863. The SN74ALS29863 is part of a broader range of bus transceivers offering various bit widths and interface capabilities. It complements other logic components in high-performance digital designs.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The SN74ALS29863DW is a direct replacement offering the same functionality in a Small-Outline (SOIC) package. Both parts share identical electrical characteristics and pinouts. Choose based on board space constraints and mounting preferences.

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle data direction?

Data direction is controlled by the logic levels at the OEAB1, OEAB2, OEBA1, and OEBA2 inputs, allowing transmission from A to B, B to A, or isolation.

What is the maximum propagation delay?

The maximum propagation delay is 15 ns when driving a 300 pF load and 8 ns when driving a 50 pF load.