DS3487N

Overview

The DS3487N is a quad TRI-STATE line driver manufactured by National Semiconductor, designed for RS-422 and RS-485 communication protocols. It features four differential outputs with TTL-compatible inputs and operates on a single 5V power supply. The device supports data rates up to 10 Mb/s with a propagation delay of 10 ns. It is housed in a 16-pin SOIC package and functions within an operating temperature range of 0°C to 70°C.

Feature Summary

• Provides four differential line drivers with TRI-STATE output capability
• Compatible with RS-422 and RS-485 interface standards
• Features TTL-compatible input logic levels

Applications

• RS-422 balanced digital interface circuits
• RS-485 multi-point communication systems
• Industrial data transmission networks

Procurement Notes

Verify the specific manufacturer designation as National Semiconductor or Texas Instruments, noting that National Semiconductor's semiconductor division was acquired by TI. Confirm the package type matches the required PCB footprint and ensure the operating temperature range aligns with the system environment specifications before procurement.

Selection Notes

Select this component when a quad differential driver is required for RS-422/RS-485 applications. Ensure the design accommodates the 16-pin SOIC package dimensions. Verify that the 0°C to 70°C commercial temperature range meets the operational requirements of the target application environment.

Part Context

This part belongs to the DS3487 family of line drivers. It serves as a transmitter-only variant within the broader category of RS-422/RS-485 interface integrated circuits. The component is distinct from receiver or transceiver variants in the same series.