MAX1406 19-1120 Rev 0 9/96 15kV ESD-Protected, EMC-Compliant, 230kbps, 3-Tx/3-Rx RS-232 IC General Description Features The MAX1406 is an RS-232 IC designed to meet the Enhanced ESD Protection: stringent electrostatic discharge (ESD) requirements of 15kV Human Body Model the European community. All transmitter outputs and 8kV IEC1000-4-2, Contact Discharge receiver inputs are protected to 15kV using IEC1000-4-2 Air-Gap Discharge, 8kV using IEC 1000-4-2 Contact 15kV IEC1000-4-2, Air-Gap Discharge Discharge, and 15kV using the Human Body Model. Latchup Free During an ESD Event The MAX1406 has three RS-232 transmitters and three 16-Pin SSOP or SO Packages RS-232 receivers, and is optimized for operation in Guaranteed 230kbps Data Rate printer, modem, and telecom applications. It is guaran- teed to run at data rates up to 230kbps, providing com- Flow-Through Pinout patibility with popular software for communicating with Pin Compatible with MC145406 personal computers. Power-supply current is less than 500A for I and I and less than 1mA for I DD SS, CC. Ordering Information The MAX1406 is pin and functionally compatible with the industry-standard MC145406, so existing designs can PART TEMP. RANGE PIN-PACKAGE instantly become Electromagnetic Compatibility (EMC) MAX1406CPE 0C to +70C 16 Plastic DIP compliant. The MAX1406 is available in DIP and SO pack- MAX1406CWE 0C to +70C 16 Wide SO ages, and in a tiny SSOP that reduces board space. MAX1406CAE 0C to +70C 16 SSOP MAX1406C/D 0C to +70C Dice* MAX1406EPE -40C to +85C 16 Plastic DIP Applications MAX1406EWE -40C to +85C 16 Wide SO MAX1406EAE -40C to +85C 16 SSOP Telecommunications *Dice are specified at T = +25C, DC parameters only. A Modems Printers Functional Diagram Instruments +5V Equipment Meeting IEC1000-4-2 0.1F +12V -12V Pin Configuration V V V DD CC SS 0.1F 0.1F MAX1406 T1IN T1OUT TOP VIEW T1 V 1 16 DD V CC T2IN T2OUT T2 R1IN 2 15 R1OUT T3IN T3OUT T1OUT 3 14 T1IN T3 R2IN 4 13 R2OUT MAX1406 R1OUT R1IN R1 T2OUT 5 12 T2IN R2OUT R2IN R3IN 6 11 R3OUT R2 T3OUT 7 10 T3IN R3OUT R3IN R3 V 9 GND 8 SS GND DIP/SO/SSOP Maxim Integrated Products 1 For free samples & the latest literature: 15kV ESD-Protected, EMC-Compliant, 230kbps, 3-Tx/3-Rx RS-232 IC ABSOLUTE MAXIMUM RATINGS V ...........................................................................-0.3V to +7V Continuous Power Dissipation (T = +70 C) CC A V .........................................................................-0.3V to +14V DIP (derate 10.53mW/ C above +70 C) .......................842mW DD V ..........................................................................+0.3V to -14V Wide SO (derate 20.00mW/ C above +70 C)...................1.6W SS Input Voltages SSOP (derate 8.00mW/ C above +70 C) .....................640mW T .........................................................................-0.3V to +6V Operating Temperature Ranges IN R ....................................................................................30V MAX1406C E.......................................................0 C to +70 C IN Output Voltages MAX1406E E ....................................................-40 C to +85 C T ..................................................................................15V Storage Temperature Range ............................-65 C to +160 C OUT R ........................................................-0.3V to (V + 0.3V) Lead Temperature (soldering, 10sec) ............................+300 C OUT CC Short-Circuit Duration T (one at a time)................................................Continuous OUT R (one at a time)................................................Continuous OUT 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 = +4.5V to +5.5V, V = +10.8V to +13.2V, V = -10.8V to -13.2V, T = T to T unless otherwise noted. Typical values CC DD SS A MIN MAX, are at T = +25C.) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DC CHARACTERISTICS V 4.5 5.5 CC Operating Voltage Range V 10.8 13.2 V DD V -13.2 -10.8 SS I 230 1000 CC m A Supply Current I No load 185 500 DD I 185 500 SS LOGIC Input Logic Threshold Low V T 0.8 V ILT IN Input Logic Threshold High V T 2.0 V IHT IN m A Input Leakage Current 0.01 1 Output Voltage Low V R I = 3.2mA 0.4 V OLR OUT SINK Output Voltage High V R I = 1mA V - 0.6 V OHR OUT SOURCE CC TRANSMITTER OUTPUTS V = 7.0V, V = -7.0V, R = 3kW SS L 5.0 DD Output Voltage Swing V V = 12V, V = -12V, R = 3kW 9.5 DD SS L Transmitter Output Resistance V = V = V = 0V, V = 2V 300 W CC SS T OUT DD RS-232 Output Short-Circuit 35 60 mA Current RECEIVER INPUTS Receiver Input Voltage -25 +25 V Operating Range RS-232 Input Threshold Low 0.75 V RS-232 Input Threshold High 2.4 V RS-232 Input Hysteresis 0.65 V 2 MAX1406