±15kV ESD-Protected, +3.0V to +5.5V, 10nA, RS-232/RS-485/RS-422 Multiprotocol Transceivers

The MAX3160E/MAX3161E/MAX3162E are programmable RS-232/RS-485/RS-422 multiprotocol transceivers. The MAX3160E/MAX3161E are pin programmable as a 2Tx/2Rx RS-232 interface or a single RS-485/RS-422 transceiver. The MAX3162E is configured as a 2Tx/2Rx RS-232 interface, and a single RS-485/RS-422 transceiver simultaneously.

The MAX3160E/MAX3161E/MAX3162E feature enhanced electrostatic discharge (ESD) protection. All of the transmitter outputs and receiver inputs are protected to ±15kV using the Human Body Model.

All devices incorporate a proprietary low-dropout trans- mitter output stage, and an on-board dual charge pump to allow RS-232- and RS-485-/RS-422-compliant performance from a +3V to +5.5V supply. These devices also feature pin-selectable transmitter slew rates for RS-232 and RS-485/RS-422 modes. Slew-rate limiting minimizes EMI and reduces reflections caused by improperly terminated cables, allowing error-free data transmission up to 250kbps. Disabling slew-rate limiting allows these devices to transmit at data rates up to 10Mbps in RS-485/RS-422 mode and up to 1Mbps in RS-232 mode.

The MAX3160E/MAX3162E offer a flow-through pinout that facilitates board layout. The MAX3160E/MAX3161E/MAX3162E are available in tiny SSOP packages and operate up to -40°C to +85°C temperature ranges.

Applications

* Industrial Controls * Interface Converters * Networking * Peripherals * Point-of-Sale Equipment * RS-232 to RS-485 * Security Systems

* Flexible Options for RS-232 and RS-422/485 Operation In One Package

* Simultaneous 2Tx/2Rx RS-232 and Half-Duplex RS-485 Transceiver Operation (MAX3162E)

* Pin-Programmable As Either 2Tx/2Rx RS-232 or Half/Full RS-485 Transceiver (MAX3160E, MAX3161E)

* Integrated Protection Increases Robustness

* High ±15kV ESD HBM per JEDEC JS-001-2012

* Transmitters and Receivers Protected Against Wiring Faults

* True Fail-Safe Receiver Prevents False Transition on Receiver Input Short or Open

* Short-Circuit Protection Over the Entire Common- Mode Voltage Range

* Thermal Protection from Excessive Power Dissipation

* Slew Rate Limiting Minimizes EM and Reduces Cable Reflections

* Integrated Charge Pump Circuitry Saves Board Space

* Eliminates the Need for a Bipolar ±12V Supply

* Enables Single Supply Operation From +3V to +5.5V Voltage Supply

* 1µA Shutdown Supply Current Saves Power

* Allows Up To 256 Transceivers on the Bus