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MAX3161：+3.0V to +5.5V, 1µA, RS-232/RS-485/422 Multiprotocol Transceivers

Industry's-First +3V, 1µA Multiprotocol Interface Solution

The MAX3160/MAX3161/MAX3162 are programmable RS-232/RS-485/422 multiprotocol transceivers. The MAX3160/MAX3161 are pin programmable as a 2TX/2RX RS-232 interface or a single RS-485/422 transceiver. The MAX3162 is configured as a 2TX/2RX RS-232 interface and a single RS-485/422 transceiver simultaneously. All devices incorporate a proprietary low-dropout transmitter output stage and an on-board dual charge pump to allow RS-232 and RS-485/422 compliant performance from a +3V to +5.5V supply. These devices also feature pin-selectable transmitter slew rates for both RS-232 and RS-485/422 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-485/422 mode and up to 1Mbps in RS-232 mode. The MAX3160/MAX3162 offer a flow-through pinout that facilitates board layout. The MAX3160/MAX3161/MAX3162 are available in tiny SSOP packages and operate from -40°C to +85°C.

Key Features 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 (MAX3162) Pin-Programmable as Either 2TX/2RX RS-232 or Half/Full RS-485 Transceiver (MAX3160, MAX3161) Integrated Protection Increases Robustness 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

MAX3160, MAX3161, MAX3162: Typical Operating Circuit Applications/Uses Industrial Controls Networking Peripherals Point-of-Sale Equipment RS-232 to RS-485 Interface Converters

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Parametrics

Design kits & evaluation modules

• MAX3162EVKIT

Related Products

• MAX3162：+3.0V to +5.5V, 1µA, RS-232/RS-485/422 Multiprotocol Transceivers
• MAX3161：+3.0V to +5.5V, 1µA, RS-232/RS-485/422 Multiprotocol Transceivers
• MAX3170：+3.3V, Multiprotocol, 3 Tx/3 Rx, Software-Selectable Clock/Data Transceiver
• MAX3171：+3.3V Multiprotocol 3Tx/3Rx Software-Selectable Control Transceivers
• MAX3172：+3.3V Multiprotocol Software-Selectable Cable Terminators and Transceivers
• MAX3080：Fail-Safe, High-Speed (10Mbps), Slew-Rate-Limited RS-485/RS-422 Transceivers
• MAX3222：3.0V to 5.5V, Low-Power, up to 1Mbps, True RS-232 Transceivers Using Four 0.1µF External Capacitors

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