MAX3209E 19-1471 Rev 5 9/02 15kV ESD-Protected, 12V, Dual RS-232 Serial Port with Low-Power Standby for Motherboards/Desktops General Description Features The MAX3209E is a complete, dual DTE RS-232 serial Two Complete Serial Ports in a Single 38-Pin port (6 transmitters, 10 receivers) for motherboards and TSSOP Package desktop PCs that ensures compliance with the stringent Requires Only +12V Supply and Logic ESD requirements of the European Community. The Supply (+3V to +5.5V) device minimizes board space and power consumption No Negative Supply Required by eliminating the need for a negative power supply it One Receiver Active per Port in Standby integrates two serial ports and a charge pump into a sin- for System Wake-Up gle 38-pin TSSOP package. 460kbps Data Rate LapLink Compatible The MAX3209E features a 50A low-power standby Enhanced ESD Protection mode for compliance with system power-management 15kVHuman Body Model requirements. During standby, while the device oper- ates from the single +3V to +5.5V logic supply, one 8kVIEC 1000-4-2, Contact Discharge receiver on each port remains active, allowing automatic 15kVIEC 1000-4-2, Air-Gap Discharge system wake-up when peripheral communications 4kV Fast Transient Burst Immunity per resume. IEC 1000-4-4 All transmitter outputs and receiver inputs are protected Low 50A Standby Current to 15kV using IEC 1000-4-2 Air-Gap Discharge, 8kV Operates with Either +3V or +5V Logic using IEC 1000-4-2 Contact Discharge, and 15kV Guaranteed Mouse Driveability using the Human Body Model, making the device ideal Small 0.1F Capacitors for use in harsh environments or mission-critical equip- Flow-Through Pinout ment. In addition, the MAX3209E withstands 4kV per IEC 1000-4-4 Electrical Fast Transient/Burst Stressing. As a result of its robust charge-pump structure, the Ordering Information MAX3209E guarantees mouse driveability and true RS- PART TEMP RANGE PIN-PACKAGE 232 operation at data rates up to 460kbps, ensuring MAX3209ECUU 0C to +70C 38 TSSOP compatibility with PC-to-PC communication software (such as LapLink ). MAX3209EEUU -40C to +85C 38 TSSOP MAX3209EEGL -40C to +85C 6 6 40 QFN Pin Configurations Applications Desktop PCs TOP VIEW Motherboards Instruments 40 39 38 37 36 35 34 33 32 31 Equipment Requiring IEC 1000-4-2 Compliance 30 T3IN 1 T3OUT Telecommunications T2IN 2 29 T2OUT Network Servers 3 28 T1OUT T1IN V 4 27 V- STBY V 5 26 C- DD MAX3209E C+ 6 25 GND 24 T4IN 7 T4OUT 8 23 T5IN T5OUT T6IN 9 22 T6OUT N.C. 10 21 N.C. Typical Operating Circuit appears at end of data sheet. 11 12 13 14 15 16 17 18 19 20 Pin Configurations continued at end of data sheet. LapLink is a trademark of Traveling Software. 6 X 6 QFN Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com. R6OUT R1OUT R7OUT R2OUT R8OUT R3OUT R9OUT R4OUT R10OUT R5OUT R10IN R5IN R9IN R4IN R8IN R3IN R7IN R2IN R6IN R1IN15kV ESD-Protected, 12V, Dual RS-232 Serial Port with Low-Power Standby for Motherboards/Desktops ABSOLUTE MAXIMUM RATINGS V .........................................................................-0.3V to +15V T OUT (one at a time)............................................Continuous DD V ....................................................................... -0.3V to +7V R OUT (one at a time)............................................Continuous STBY V- ........................................................................... +0.3V to -15V Continuous Power Dissipation (T = +70C) A Input Voltages TSSOP (derate 11.8mW/C above +70C) ..................941mW T IN ......................................................................-0.3V to +7V QFN 6 6mm (derate 23.2mW/C above +70C)......1860mW R IN .................................................................................30V Operating Temperature Ranges Output Voltages MAX3209EC ...................................................0C to +70C T OUT..............................................................................15V MAX3209EE ................................................-40C to +85C R OUT.................................................-0.3V to (V + 0.3V) Storage Temperature Range ............................-65C to +150C STBY Short-Circuit Duration Lead Temperature (soldering, 10s) ................................+300C 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 = +10.8V to +13.2V, V = +3V to +5.5V, C1 = C2 = 0.1F, T = T to T , unless otherwise noted. Typical values are at DD STBY A MIN MAX T = +25C, V = +12V, V = +3.3V.) A DD STBY PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DC CHARACTERISTICS V 10.8 13.2 DD Operating Voltage Range V STBY 3 5.5 V = +12V, no load, all transmitter inputs at DD I V , all receiver inputs at V or uncon- 0.5 1 mA DD STBY STBY nected Supply Current V = 0, V = +3.3V, no load, all transmit- DD STBY I ter inputs at V , all receiver inputs at V 50 100 A STBY STBY STBY or unconnected TRANSMITTER LOGIC INPUTS Input Logic Threshold Low V T IN 0.4 V ILT Input Logic Threshold High V T IN, V = +3V to +5.25V 2.1 V IHT STBY Input Pull-Up Current Transmitter input at GND 25 A RECEIVER LOGIC OUTPUTS Output Voltage Low V R OUT I = 1.6mA 0.4 V OLR SINK I = 40A V - 0.3 SOURCE STBY Output Voltage High V R OUT V OHR I = 1mA V - 0.6 SOURCE STBY Receiver Output Leakage V = 0, V = 5V 0.05 5 A DD STBY Current RS-232 TRANSMITTER OUTPUTS Output Voltage Swing All transmitter outputs loaded with 3k to GND 5.0 V RS-232 Output Short-Circuit V = 0 10 60 mA T OUT Current Transmitter Output Resistance V = V = 0, V = 2V 300 DD STBY OUT RS-232 RECEIVER INPUTS Receiver Input Voltage Range -25 25 V RS-232 Input Threshold Low T = +25C 0.4 V A RS-232 Input Threshold High T = +25C 2.4 V A RS-232 Input Hysteresis V = 3.3V 0.2 1 V STBY RS-232 Input Resistance T = +25C 35 7 k A 2 MAX3209E