DS3896M

Overview

The DS3896M is a dual high-speed differential line driver manufactured by National Semiconductor, now part of Texas Instruments. Designed for RS-422 communication standards, this component integrates two independent drivers within a single package to facilitate robust data transmission over balanced lines. It operates with a supply voltage range typically spanning 4.75 V to 5.25 V, ensuring compatibility with standard logic families. The device features controlled slew rates to minimize electromagnetic interference and supports data rates up to 10 Mbps. Packaged in a 20-pin plastic small outline (SOP) configuration, it provides reliable performance for industrial and commercial serial communication applications requiring differential signaling.

Feature Summary

• Dual independent differential line drivers integrated into a single compact package
• Compliance with RS-422 interface standards for reliable long-distance communication
• Controlled slew rate design to reduce signal reflections and electromagnetic interference
• High noise immunity through differential signaling architecture

Applications

• Industrial serial communication networks
• Multi-drop bus systems requiring RS-422 compliance
• Data acquisition systems with long cable runs
• Factory automation control panels

Part Context

National Semiconductor was acquired by Texas Instruments, which continues to support and manufacture legacy parts under the TI brand. The DS3896M belongs to the family of high-speed differential transceivers designed for robust serial data transmission. While the original manufacturer branding may appear on older components, current documentation and supply chains are managed by Texas Instruments. This part serves as a critical interface element in systems transitioning from single-ended to differential signaling for improved noise resistance.

Replacement Considerations

Direct pin-compatible replacements include the DS9638 series, such as the DS9638CM or DS9638CM/NOPB, which offer identical RS-422 dual driver functionality. Other compatible alternatives from different manufacturers include the SP26LV431 or ST34C87, though verification of electrical parameters and package dimensions is required before substitution.