MAX3485ESA

The MAX3485ESA is a 3.3V powered, half-duplex, low-power RS-485 transceiver that fully meets the requirements of the TIA/EIA-485 standard. The MAX3485ESA includes a driver and a receiver, both of which can be independently enabled and disabled. When both are disabled, both the driver and the receiver output a high impedance state. The MAX3485ESA has a 1/8 load that allows 256 MAX3485ESA transceivers to be connected to the same communication bus. Error-free data transfer of up to 12Mbps is possible. The MAX3485ESA operates from a voltage range of 3.0 to 3.6V and features fail-safe, over temperature protection, current limit protection, over-voltage protection, and other functions.

Applications

• Bus networking
• Hand-in-hand networking
• Bus port protection

Key features

• 3.3V power supply, half-duplex
• 1/8 unit load allows up to 256 devices on the bus
• Driver output short-circuit protection function
• Over temperature protection function
• Low power shutdown function
• Receiver open circuit protection function
• Strong anti-noise ability
• Integrated transient voltage resistance function
• Transmission rate up to 12Mbps in an electrical noise environment