EVALUATION KIT AVAILABLE +3.0V to+5.5V, 1A, RS-232/ MAX3160/MAX3161/MAX3162 RS-485/422 Multiprotocol Transceivers General Description Benefits and Features The MAX3160/MAX3161/MAX3162 are programmable Flexible Options for RS-232 and RS-422/485 +3V to +5.5V RS-232/RS-485/422 multiprotocol trans- Operation in One Package ceivers. The MAX3160/MAX3161 are pin programmable Simultaneous 2TX/2RX RS-232 and Half-Duplex as a 2TX/2RX RS-232 interface or a single RS-485/422 RS-485 Transceiver Operation (MAX3162) transceiver. The MAX3162 is configured as a 2TX/2RX Pin-Programmable as Either 2TX/2RX RS-232 or RS-232 interface and a single RS-485/422 transceiver Half/Full RS-485 Transceiver (MAX3160, simultaneously. MAX3161) All devices incorporate a proprietary low-dropout trans- Integrated Protection Increases Robustness mitter output stage and an on-board dual charge pump to allow RS-232 and RS-485/422 compliant perfor- Transmitters and Receivers Protected Against mance from a +3V to +5.5V supply. These devices also Wiring Faults feature pin-selectable transmitter slew rates for both True Fail-Safe Receiver Prevents False Transition RS-232 and RS-485/422 modes. Slew-rate limiting mini- on Receiver Input Short or Open mizes EMI and reduces reflections caused by improp- Short-Circuit Protection Over the Entire Common- erly terminated cables, allowing error-free data transmission up to 250kbps. Disabling slew-rate limiting Mode Voltage Range allows these devices to transmit at data rates up to Thermal Protection from Excessive Power 10Mbps in RS-485/422 mode and up to 1Mbps in RS- Dissipation 232 mode. Slew Rate Limiting Minimizes EM and Reduces The MAX3160/MAX3162 offer a flow-through pinout that Cable Reflections facilitates board layout. The MAX3160/MAX3161/ Integrated Charge-Pump Circuitry Saves Board MAX3162 are available in tiny SSOP packages and operate from -40C to +85C. Space Eliminates the Need for a Bipolar 12V Supply Applications Enables Single-Supply Operation From +3V to Point-of-Sales Equipment Peripherals +5.5V Voltage Supply Industrial Controls Networking 1A Shutdown Supply Current Saves Power Allows Up to 256 Transceivers on the Bus RS-232 to RS-485 Interface Converters Typical Operating Circuit Ordering Information +3V TO +5.5V PART TEMP RANGE PIN-PACKAGE 1 MAX3160CAP+ 0C to +70C 20 SSOP DB9 V CC MAX3160EAP+ -40 C to +85C 20 SSOP RS485/RS232 11 MAX3161 CAG+ 0 C to +70C 24 SSOP DI/T1IN TX Z(B)/T1OUT MAX3161EAG+ -40 C to +85C 24 SSOP 13 5 16 MAX3160 Y(A)/T2OUT DE/T2IN RTS MAX3162 CAI+ 0 C to +70C 28 SSOP 6 MAX3100 11 15 RX A/R2IN RO/R2OUT MAX3162EAI+ -40 C to +85C 28 SSOP 8 13 12 CTS B/R1IN +Denotes a lead(Pb)-free/RoHS-compliant package. R1OUT 7 14 10 GND FAST HDPLX SHDN SPI 4 10 12 9 RJ45 SHDN P Pin Configurations appear at end of data sheet. Selector Guide appears at end of data sheet. 19-1722 Rev 3 5/15+3.0V to+5.5V, 1A, RS-232/ MAX3160/MAX3161/MAX3162 RS-485/422 Multiprotocol Transceivers V to GND..............................................................-0.3V to +6V Continuous Power Dissipation (T = +70C) CC A V+ to GND................................................................-0.3V to +7V 20-Pin SSOP (derate 11.9W/C above +70C) ..........952mW V- to GND....................................................................0.3V to -7V 24-Pin SSOP (derate 14.9W/C above +70C) ........1195mW V+ - V- (Note 1)....................................................................+13V 28-Pin SSOP (derate 15W/C above +70C) ...........1201mW Input Voltages Operating Temperature Ranges MAX316 CA ....................................................0C to +70C T1IN, T2IN, DI, DE485, RE485, TE232, RE232, SHDN, MAX316 EA .................................................-40C to +85C FAST, HDPLX, RS485/RS232 to GND..............-0.3V to +6V Storage Temperature Range .............................-65C to +150C A, B, R1IN, R2IN to GND ...............................................25V Junction Temperature......................................................+150C Output Voltages Lead Temperature (soldering, 10s) .................................+300C T1OUT, T2OUT, Y, Z to GND......................................13.2V R2OUT, R1OUT, RO to GND................-0.3V to (V + 0.3V) CC Output Short-Circuit Duration T1OUT, T2OUT, Y, Z ............................................Continuous Note 1: V+ and V- can have maximum magnitudes of 7V, but their absolute difference cannot exceed 13V. Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Electrical Characteristics (V = +3V to +5.5V, C1C4 = 0.1F when tested at +3.3V 10% C1 = 0.047F and C2, C3, C4 = 0.33F when tested at +5V CC 10% T = T to T , unless otherwise noted. Typical values are at T = +25C.) A MIN MAX A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DC CHARACTERISTICS MAX3160/MAX3161, no load, 1.2 2.5 RS485/ RS232 = GND V Standby Current I mA CC CC MAX3160/MAX3161, no load, 2.5 5.5 RS485/ RS232 = V CC MAX3162 No Load 3.0 6 SHDN = GND, receiver inputs open or V Shutdown Current I 110 A CC CC grounded TRANSMITTER AND LOGIC INPUTS (DI, T1IN, T2IN, DE485, RRRREEEE444488885555, TE232, RRRREEEE222233332222, FAST, HDPLX, SHDN, RS485/RRRRSSSS222233332222) Logic Input Low V 0.8 V IL V = +3.3V 2.0 CC Logic Input High V V IH V = +5V 2.4 CC Logic Input Leakage Current I 0.01 1A INL Transmitter Logic Hysteresis V 0.5 V HYS RS-232 AND RS-485/422 RECEIVER OUTPUTS (R1OUT, R2OUT, RO) Receiver Output Voltage Low V I = 2.5mA 0.4 V OL OUT Receiver Output Voltage High V I = -1.5mA V - 0.6 V OH OUT CC Receiver Output Short Circuit I 0 < V < V 20 60 mA OSR O CC Current Receiver Output Leakage I Receivers disabled 0.05 1A OZR Current www.maximintegrated.com Maxim Integrated 2