MAX487ESA+T

Product Overview

The MAX487ESA+T from Analog Devices Inc./Maxim Integrated is a surface-mount transceiver IC intended for RS422 and RS485 differential serial interfaces. The device provides a 1/1 driver and receiver arrangement for half-duplex communication, supports a data rate of 250 kbps, and operates from a 4.75 V to 5.25 V supply. It is specified for an ambient operating temperature range of -40°C to 85°C and is supplied in an 8-SOIC package with a 0.154 in, 3.90 mm body width.

Key Features

• RS422 and RS485 transceiver protocol support.
• 1/1 driver and receiver configuration for half-duplex operation.
• 250 kbps data rate.
• 70 mV receiver hysteresis.
• 4.75 V to 5.25 V supply voltage range.
• Operating temperature range of -40°C to 85°C.
• Surface-mount 8-SOIC package with 0.154 in, 3.90 mm width.

Applications

• RS422 or RS485 differential serial communication links.
• Half-duplex serial data paths between logic-level controllers and differential line interfaces.
• Embedded serial interface segments requiring a single driver and single receiver in an 8-pin SOIC package.

Design & Procurement Notes

Design considerations include matching the 8-SOIC surface-mount footprint and maintaining the 4.75 V to 5.25 V supply range during operation. The 1/1 half-duplex configuration means transmit and receive functions are not simultaneous, so the surrounding serial interface logic should manage direction and timing. The 250 kbps data rate and 70 mV receiver hysteresis define the supported serial speed and input switching behavior. The -40°C to 85°C operating temperature range should be verified against the expected ambient conditions of the board assembly.