3Mbps RS-232 Transceivers with MAX13234EMAX13237E Low-Voltage Interface, 15kV HBM ESD General Description Benefits and Features The MAX13234E-MAX13237E are a family of 2x2 and Data Rate Up to 3Mbps for Faster Throughput 1x1 RS-232 and V.28/V.24 transceivers with high speed Saves Board Space data rates up to 3Mbps that operate from either a 3.3V Integrated Low-Voltage Logic for Easy Interface or 5V supply. with ASICs and Microcontrollers All devices achieve a 1A supply current using Maxims Integrated 15kV HBM ESD Protection AutoShutdown Plus feature. These devices automati- Integrated Charge-Pump Circuitry Requiring Only cally enter a low-power shutdown mode when the Four External 0.1F Capacitors for 3.3V Operation RS-232 cable is disconnected or the devices driving the transmitter and receiver inputs are inactive for more +3V to +5.5V Supply Voltage than 30s. AutoShutdown Plus Achieves 1A Shutdown Current The MAX13234EMAX13237E are available in space- Reduces Power Consumption saving TQFN and TSSOP packages and operate over Available in 20-pin TSSOP, TQFN-EP, and 16-pin the -40C to +85C temperature range. TQFN -40C to +85C Operating Temperature Applications Functional Diagrams Telematics GPS Systems 1.62V to VCC 3.0V to 5.5V Industrial Systems C C BYPASS1 BYPASS2 Portable Devices V V L CC C1+ V+ Wireless Modules C1 C3 C1- MAX13234E POS Systems MAX13235E C2+ V- C2 C4 Communication Systems C2- T1IN T1OUT Data Cables RS-232 TTL/CMOS INPUTS OUTPUTS T2IN T2OUT R1OUT R1IN 5k RS-232 TTL/CMOS INPUTS OUTPUTS R2OUT R2IN FORCEOFF 5k FORCEON READY GND Functional Diagrams continued at end of data sheet. Ordering Information/Selector Guide DRIVERS/ MAXIMUM PART TEMP RANGE PIN-PACKAGE RECEIVERS DATA RATE MAX13234EEUP+ 2 x 2 250kbps -40C to +85C 20 TSSOP MAX13234EETP+ 2 x 2 250kbps -40C to +85C 20 TQFN-EP* MAX13235EEUP+ 2 x 2 3Mbps -40C to +85C 20 TSSOP MAX13235EETP+ 2 x 2 3Mbps -40C to +85C 20 TQFN-EP* MAX13236EETE+ 1 x 1 250kbps -40C to +85C 16 TQFN-EP* MAX13237EETE+ 1 x 1 3Mbps -40C to +85C 16 TQFN-EP* +Denotes a lead-free/RoHS-compliant package. *EP = Exposed pad. 19-4343 Rev 1 12/14 LOGIC-LEVEL TRANSLATION3Mbps RS-232 Transceivers with MAX13234EMAX13237E Low-Voltage Interface, 15kV HBM ESD Absolute Maximum Ratings (All voltages referenced to GND.) Junction-to-Case Thermal Resistance ( ) (Note 1) JC V ...................................................................... -0.3V to +6.0V 16-Pin TQFN ................................................................. 2C/W CC V ......................................................................... -0.3V to +6.0V 20-Pin TSSOP ............................................................. 20C/W L V+ ........................................................................ -0.3V to +7.0V 20-Pin TQFN ................................................................. 2C/W V- ......................................................................... +0.3V to -7.0V Junction-to-Ambient Thermal Resistance ( ) (Note 1) JA (V+) + (V-) ..................................................................... +13.0V 16-Pin TQFN ............................................................... 30C/W T IN, FORCEOFF, FORCEON ..................... -0.3V to (V + 0.3V) 20-Pin TSSOP ............................................................. 73C/W L R IN ................................................................................... 25V 20-Pin TQFN ............................................................... 29C/W T OUT.............................................................................. 13.2V Operating Temperature Range R OUT, READY ........................................... -0.3V to (V + 0.3V) MAX1323x Operating Temperature Range .... -40C to +85C L Short-Circuit Duration MAX1323x Operating Temperature Range .. -40C to +105C T OUT to GND ......................................................... Continuous Storage Temperature Range ........................... -65C to +160C Continuous Power Dissipation (T = +70C) Lead Temperature (soldering, 10s) .................................+300 C A 16-Pin TQFN (derate 20.8mW/C above +70C) ..... 1666mW 20-Pn TSSOP (derate 10.9mW/C above +70C) ...... 879mW 20-Pin TQFN (derate 21.3mW/C above +70C) ..... 1702mW Note 1: 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. 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, V = +1.62V to V , T = -40C to +85C, C1C4 = 0.1F, V = V , tested at 3.3V 10%. Typical values are CC L CC A CC L at T = +25C.) (Note 2) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage V 3 5.5 V CC Logic Supply Voltage V 1.62 V V L CC FORCEOFF = FORCEON = V , no loads 0.3 1 mA L V = 0V 1 10 L V Supply Current I CC CC AutoShutDown Plus, FORCEOFF = V , L A FORCEON = GND, all R IN idle, all T IN 110 idle. V Shutdown Current I FORCEOFF = GND 1 10 A CC CCSH V Supply Current I V = +5.5V 1 10 A L L CC V Shutdown Current I FORCEOFF = GND 1 10 A L LSH LOGIC INPUTS (T IN, FORCEON, FORCEOFF, Referred to V ) L Input Threshold Low V Tested at room temperature only 1/3 x V V IL L Input Threshold High V Tested at room temperature only 2/3 x V V IH L Input Hysteresis 60 mV Input Leakage Current 0.01 1 A RECEIVER OUTPUTS (READY) Output-Voltage Low V I = 0.8mA 0.4 V OL OUT Output-Voltage High V I = -0.5mA V - 0.6 V - 0.1 V OH OUT L L www.maximintegrated.com Maxim Integrated 2