SP385E SP385E Enhanced +3V or +5V RS-232 Line Driver/Receiver FEATURES 18 N/C 1 ON/OFF Operates from 3.3V or 5V Power Supply Meets all EIA-232D and V.28 Specifica - 17 C + 2 V 1 CC tions at 5V. 16 V+ 3 GND Meets EIA-562 Specifications at 3.3V Two Drivers and Receivers 15 C - 4 T OUT 1 1 Operates with 0.1F to 10F Capacitors 14 High data rate - 120kbps Under Load C + 5 R IN 2 1 Low Power Shutdown 1A 13 C - 6 R OUT 2 1 3-State TTL/CMOS Receiver Outputs Low Power CMOS - 5mA Operation 12 V- 7 T IN 1 Improved ESD Specifications: 11 T OUT 8 T IN +15kV Human Body Model 2 2 +15kV IEC61000-4-2 Air Discharge 10 R IN 9 R OUT 2 2 +8kV IEC61000-4-2 Contact Discharge Now Available in Lead Free Packaging DESCRIPTION Exar s SP385E is an enhanced version of the SP200 family of RS-232 line drivers/receivers. The SP385E offers +3.3V operation for EIA-562 and EIA-232 applications. The SP385E features offered maintains the same performance features offered in its predecessors. The SP385E is available in plastic SOIC or SSOP packages operating over the commercial and industrial temperature ranges. The SP385E is pin compatible to the LTC1385 EIA-562 transceiver with the exception that the drivers are disabled with the ON/OFF pin. TYPICAL APPLICATION CIRCUIT RS232 OUTPUTS RS232 INPUTS T T 2 1 Charge Pump R R 1 2 TTL/CMOS INPUTS TTL/CMOS OUTPUTS SP385E 101 012920 1ABSOLUTE MAXIMUM RATINGS These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability and cause permanent damage to the device. Power Dissipation V ................................................................... +6.0V CC 20-pin SSOP ..................................................750mW V+ .............................................(Vcc-0.3V) to +13.2V (derate 9.25mW/C above +70 C) V- .................................................................... -13.2V Input Voltages 18-pin Wide SOIC.........................................1260mW TxIN, .......................................-0.3V to (Vcc + 0.3V) (derate 15.7mW/C above +70 C) RxIN...................................................................+15V Output Voltages TxOUT.................................(V+, +0.3V) to (V-, -0.3V) RxOUT........................................-0.3V to (V +0.3V) CC Short-Circuit Duration TxOUT....................................................Continuous Storage Temperature......................-65C to +150C ELECTRICAL CHARACTERISTICS V = +3.3V +10% cap on (V+) and (V-) = 1.0F, C1 = C2 = 0.1F T to T unless otherwise noted. CC MIN MAX PARAMETER MIN. TYP. MAX. UNITS CONDITIONS TTL INPUT Input Logic Threshold LOW 0.8 V TxIN, ON/OFF, Vcc = 3.3V Input Logic Threshold HIGH 2.0 V TxIN, ON/OFF, Vcc = 3.3V Logic Pullup Current 15 200 A T = 0V IN Maximum Data Rate 120 kbps C = 2500pF, R = 3k L L TTL OUTPUT TTL/CMOS Output 0.5 V I = 3.2mA, Vcc = 3.3V OUT Voltage LOW TTL/CMOS Output 2.4 V I = -1.0mA OUT Voltage HIGH Leakage Current +0.05 +10 A ON/OFF = 0V, 0V V Vcc, OUT T = 25C A EIA-562 OUTPUT Output Voltage Swing +3.7 +4.2 V All transmitter outputs loaded with 3k to GND SP385E 101 012920 2