Maxim Integrated Products introduces the MAX13181E–MAX13184E full-duplex and selectable half-/full-duplex RS-485 transceivers. Packaged in a 2mm x 2mm µDFN. The devices save over 50% board space compared to existing RS-485 transceiver footprints. The small footprint of these transceivers makes them ideal for space-constrained applications such as motor control and portable sensors. The chips include enhanced ±15kV ESD protection (Human Body Model), pullup/pulldown resistors, and a 1/8 unit-load receiver-input impedance, thus allowing up to 256 transceivers on the bus. The MAX13181E/MAX13183E feature selectable half- or full-duplex operation, and the MAX13182E/MAX13184E are configured for full-duplex operation.

Additionally, the MAX13181E/MAX13182E provide slew-rate-limited drivers that reduce EMI and enable error-free transmission up to 500kbps in environments with high levels of radiated noise. The MAX13183E/MAX13184E, on the other hand, feature full-speed drivers that allow data rates up to 16Mbps. The MAX13181E–MAX13184E operate over the -40°C to +85°C extended temperature range, and they are available in a 10-pin µDFN package. Prices start at $1.75 (1000-up, FOB USA).