Tudi MAX487CUA+T-TUDI

The MAX487 is a 5V, half-duplex, low-power, slew-rate-limited RS-485 transceiver fully compliant with the TIA/EIA-485 standard. It integrates one driver and one receiver, both independently enable/disable controlled. When both are disabled, the driver and receiver outputs enter a high-impedance state. The MAX487 features 1/8 unit load, allowing up to 160 transceivers to be connected on the same bus. The slew-rate-limited driver significantly reduces EMI and reflections caused by improperly terminated cables, enabling error-free data transmission at up to 500kbps with signal transitions as fast as 40mb. The MAX487 operates from a 4.75V to 5.25V supply and provides fail-safe protection, over-temperature protection, current-limiting protection, overvoltage protection, and hot-swap inputs on control pins. The MAX487 offers excellent ESD protection: ±15kV HBM, IEC 61000-4-2 ±15kV contact discharge.

• Receiver enable supply current
• 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
• Low-power RS-485 transceiver
• Low-power RS-422 transceiver
• 1/8 unit load, allowing up to 160 devices on the bus
• Driver short-circuit output protection
• Overtemperature protection
• Low-power shutdown
• /RE, DE pins allow hot-plug inputs
• Receiver open-circuit fail-safe
• High noise immunity: integrated transient voltage suppression
• A, B port protection: contact discharge ±15KV, HBM ±15KV

• MAX487 RS485 transceiver designed for bidirectional data communication on multipoint bus transmission lines
• These devices can also be used as line repeaters for cables longer than 4000 feet