Tudi MAX1487CUA+T-TUDI

The MAX1487 is a 5V, half-duplex, low-power, slew-rate-limited RS-485 transceiver that fully complies with TIA/EIA-485 standard requirements. The MAX1487 includes one driver and one receiver, both of which can be independently enabled and disabled. When both are disabled, the driver and receiver outputs enter a high-impedance state. The MAX1487 features 1/8 unit load, allowing up to 160 transceivers to be connected on the same communication bus. The slew-rate-limited driver significantly reduces EMI and reflections caused by improperly terminated cables, enabling error-free data transmission at rates up to 500kbps - 40Mb instantaneous transitions. The MAX1487 operates over a supply voltage range of 4.75~5.25V and provides fail-safe protection, over-temperature protection, current-limiting protection, overvoltage protection, and hot-swap inputs on control pins. The MAX1487 offers excellent ESD protection, with an HBM rating of ±15kV, contact discharge per IEC61000-4-2 at ±15kV.

• Enabled receiver 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
• 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
• High noise immunity
• Integrated transient voltage suppression
• A, B port protection: Contact discharge ±15KV, HBM ±15KV

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