Click here for production status of specific part numbers. MAX3483E/MAX3485E/ 3.3V-Powered, 15kV ESD-Protected, MAX3486E/MAX3488E/ 12Mbps and Slew-Rate-Limited MAX3490E/MAX3491E True RS-485/RS-422 Transceivers General Description Features Devices in the MAX3483E family (MAX3483E/MAX3485E/ ESD Protection for RS-485 I/O Pins MAX3486E/MAX3488E/MAX3490E/MAX3491E) are 15kVHuman Body Model 15kV ESD-protected, +3.3V, low-power transceivers for 8kVIEC 1000-4-2, Contact Discharge 15kVIEC 1000-4-2, Air-Gap Discharge RS-485 and RS-422 communications. Each device con- tains one driver and one receiver. The MAX3483E and Operate from a Single +3.3V Supply MAX3488E feature slew-rate-limited drivers that minimize No Charge Pump Required EMI and reduce reflections caused by improperly termi- Interoperable with +5V Logic nated cables, allowing error-free data transmission at Guaranteed 12Mbps Data Rate data rates up to 250kbps. The partially slew-rate-limited (MAX3485E/MAX3490E/MAX3491E) MAX3486E transmits up to 2.5Mbps. The MAX3485E, MAX3490E, and MAX3491E transmit at up to 12Mbps. Slew-Rate Limited for Errorless Data Transmission (MAX3483E/MAX3488E) All devices feature enhanced electrostatic discharge (ESD) protection. All transmitter outputs and receiver 2nA Low-Current Shutdown Mode inputs are protected to 15kV using IEC 1000-4-2 Air-Gap (MAX3483E/MAX3485E/MAX3486E/MAX3491E) Discharge, 8kV using IEC 1000-4-2 Contact Discharge, -7V to +12V Common-Mode Input Voltage Range and 15kV using the Human Body Model. Full-Duplex and Half-Duplex Versions Available Drivers are short-circuit current limited and are protected Industry-Standard 75176 Pinout against excessive power dissipation by thermal shutdown (MAX3483E/MAX3485E/MAX3486E) circuitry that places the driver outputs into a high-impedance state. The receiver input has a fail-safe feature that guar- Current-Limiting and Thermal Shutdown for antees a logic-high output if both inputs are open circuit. Driver Overload Protection The MAX3488E, MAX3490E, and MAX3491E feature full- duplex communication, while the MAX3483E, MAX3485E, Ordering Information and MAX3486E are designed for half-duplex communication. PART TEMP. RANGE PIN-PACKAGE Applications MAX3483ECSA 0C to+70C 8 SO Telecommunications MAX3483ECPA 0C to+70C 8 Plastic DIP Industrial-Control Local Area Networks MAX3483EESA -40C to+85C 8 SO Transceivers for EMI-Sensitive Applications MAX3483EEPA -40C to+85C 8 Plastic DIP Integrated Services Digital Networks Ordering Information continued at end of data sheet. Packet Switching Selector Guide GUARANTEED SUPPLY DRIVER/ SHUTDOWN 15kV PART HALF/FULL SLEW-RATE PIN DATA RATE VOLTAGE RECEIVER CURRENT ESD NUMBER DUPLEX LIMITED COUNT (Mbps) (V) ENABLE (nA) PROTECTION MAX3483E 0.25 Half Yes Yes 2 Yes 8 MAX3485E 12 Half No Yes 2 Yes 8 MAX3486E 2.5 Half Yes Yes 2 Yes 8 3.0 to 3.6 MAX3488E 0.25 Full Yes No Yes 8 MAX3490E 12 Full No No Yes 8 MAX3491E 12 Full No Yes 2 Yes 14 19-1474 Rev 1 5/19MAX3483E/MAX3485E/ 3.3V-Powered, 15kV ESD-Protected, MAX3486E/MAX3488E/ 12Mbps and Slew-Rate-Limited MAX3490E/MAX3491E True RS-485/RS-422 Transceivers Absolute Maximum Ratings Supply Voltage (V ) ............................................................+7V 14-Pin SO (derate 8.33mW/C above +70C) ................667mW CC Control Input Voltage (RE, DE) ...............................-0.3V to +7V 14-Pin Plastic DIP (derate 10mW/C above +70C) .......800mW Driver Input Voltage (DI) ..........................................-0.3V to +7V Operating Temperature Ranges Driver Output Voltage (A, B, Y, Z) ......................-7.5V to +12.5V MAX34 EC ................................................0C to +70C Receiver Input Voltage (A, B) .............................-7.5V to +12.5V MAX34 EE ............................................ -40C to +85C Receiver Output Voltage (RO) ................. -0.3V to (V + 0.3V) Junction Temperature ......................................................+150C CC Continuous Power Dissipation (T = +70C) Storage Temperature Range ............................ -65C to +150C A 8-Pin SO (derate 5.88mW/C above +70C) ...............471mW Lead Temperature (soldering, 10sec) .............................+300C 8-Pin Plastic DIP (derate 9.09mW/C above +70C) ..727mW 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. Package Information TDFN-14 PACKAGE CODE S14+1 Outline Number 21-0041 Land Pattern Number 90-0112 Thermal Resistance, Single-Layer Board: Junction to Ambient ( ) 120C/W JA Junction to Case ( ) 37C/W JC Thermal Resistance, Four-Layer Board: Junction to Ambient ( ) 84C/W JA Junction to Case ( ) 34C/W JC For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a +, , or - in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial. Maxim Integrated 2 www.maximintegrated.com