MAX487CSA+T

Product Overview

The MAX487CSA+T from Analog Devices Inc./Maxim Integrated is a surface-mount RS422/RS485 transceiver in an 8-SOIC package. It provides one driver and one receiver for half-duplex serial communication with a 250kbps data rate. The device operates from a 4.75V to 5.25V supply and is specified for a 0°C to 70°C operating temperature range. A 70mV receiver hysteresis is specified for the receiver input in compact serial interface designs.

Key Features

• RS422/RS485 half-duplex transceiver with 1 driver and 1 receiver
• Provides a 250kbps data rate
• Operates from a 4.75V to 5.25V supply
• Includes 70mV receiver hysteresis for receiver input handling
• Surface-mount 8-SOIC package with 0.154 inch (3.90mm) width
• Specified for 0°C to 70°C operating temperature

Applications

• RS422 or RS485 serial communication links in compact embedded systems
• Serial signaling paths for data acquisition equipment
• Half-duplex serial buses connecting controllers and peripheral modules
• Interface sections for measurement and monitoring instruments

Design & Procurement Notes

Designers should verify that the board provides a 4.75V to 5.25V supply and that the ambient operating range remains within 0°C to 70°C. The 8-SOIC surface-mount package affects footprint, reflow profile, and inspection access, while the 1/1 driver/receiver configuration provides one transmit and one receive path per device. Half-duplex operation requires planning for transmit and receive direction control in the system architecture. The 250kbps data rate and 70mV receiver hysteresis should be considered when planning termination and signal integrity measures for RS422 or RS485 links. Board-level thermal conditions and SMT land-pattern details should also be checked against the package dimensions.