SP232A Enhanced RS-232 Line Drivers/Receivers FEATURES Operates from a Single +5V Power Supply Meets all RS-232F and ITU V.28 Specifications Operates with 0.1F Ceramic Capacitors High Data rate - 120kbps under load Low power CMOS Operation +/-2kV Human Body Model ESD Protection Lead Free packaging available DESCRIPTION The SP232A is a line driver and receiver pair that meets the specifications of RS-232 and V.28 serial protocols. This device is pin-to-pin compatible with popular industry standard pinouts. The SP232A offers 120kbps data rate under load, small ceramic type 0.1F charge pump capacitors and overall ruggedness for comercial applications. The SP232A features Exar s BiCMOS design allowing for low power operation without sacrificing performance. This device is avaialble in plastic DIP, SOICW and nSOIC packages operating over the commercial and industrial temperature ranges. SOICW and nSOIC versions available, PDIP versions are obsolete. SP232A 101 032420 1ABSOLUTE MAXIMUM RATINGS These are stress ratings only and functional opera- tion of the device at these ratings or any other above those indicated in the operation sections of the speci- fications below are not implied. Exposure to absolute maximum ratings conditions for extended periods of time may affect reliability. Short Circuit duration Supply Voltage (VCC)...............................................+ 6V Tout.....................................................Continuous V+........................................................................... (Vcc-0.3V) to +11.0V Package Power Dissipation: Plastic DIP...............................................375mW V- .............................................................................-11.0V Input Voltages (derate 7mW/C above +70C) Tin.....................................................-0.3V to (Vcc + 0.3V) Small Outline...........................................375mW Rin............................................................................+/-15V (derate 7mW/C above +70C) Output Voltages Storage Temperature..................-65C to +150C Lead Temperature (soldering, 10s).......... +300C Tout...............................................(V+, +0.3V) to (V-, -0.3V Rout...................................................-0.3V to (Vcc + 0.3V) ELECTRICAL CHARACTERISTICS Vcc=5V 10%, 0.1F charge pump capacitors, Tmin to Tmax, unless otherwise noted, Typical values are Vcc=5V and Ta=25C PARAMETER TEST CONDITIONS MIN TYP MAX UNIT TTL INPUT Logic Threshold LOW TIN 0.8 Volts Logic Threshold HIGH TIN 2.0 Volts Logic Pull-Up Current TIN = 0V 15 200 A TTL OUTPUT Output Voltge LOW Iout = 3.2 mA: Vcc = +5V 0.4 Volts Output Voltage HIGH Iout = -1.0 mA 3.5 Volts RS-232 OUTPUT All Transmitter outputs loaded Output Voltage Swing +/-5.0 +/-6.5V Volts with 3k ohms to GND Output Resistance Vcc = 0V, Vout = +/-2V 300 Ohms Output Short Circuit Current Infinite Duration +/-18 mA Maximum Data Rate CL = 2500pF, RL = 3k 120 240 kbps RS-232 INPUT Voltage Range -15 +15 Volts Voltage Threshold LOW 0.8 1.2 Volts Vcc = 5V, Ta=25C Voltage Threshold HIGH Vcc = 5V, Ta=25C 1.7 2.4 Volts Hysteresis Vcc = 5V, Ta=25C 0.2 0.5 1.0 Volts Resistance Ta=25C, -15V Vin +15V 3 5 7 k SP232A 101 032420 2