MAX485CUA-TUDI

MAX485 is a half-duplex high-speed transceiver for RS-485/RS-422 communications, integrating one driver and one receiver. It features fail-safe protection, overvoltage protection, overcurrent protection, and overprotection, with hot-swappable inputs on the /RE and DE pins. The MAX485 incorporates a slew-rate-limited driver to reduce EMI and reflections caused by improper cable termination, enabling error-free data transmission at up to 500kbps.

Applications

• Bidirectional data communication on multipoint bus transmission lines
• Line repeater for cables longer than 4000 feet

Key features

• Receiver supply current enabled
• Single-supply operation
• True fail-safe receiver inputs
• Available in μMAX package
• 1/8-unit-load receiver input
• -7V to +10V common-mode input voltage range
• 5V supply, half-duplex
• 1/8 unit load, supports up to 160 devices on the bus
• Driver short-circuit output protection
• Over-temperature protection
• Low-power shutdown
• /RE, DE pins allow hot-plug inputs
• Receiver open-circuit fail-safe protection
• High noise immunity: integrated transient voltage suppression for data rates from 500kbps to 40Mbps in electrically noisy environments
• A, B port protection: contact discharge ±15KV, HBM ±15KV