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SP232A Dataheets PDF



Part Number SP232A
Manufacturers MaxLinear
Logo MaxLinear
Description Enhanced RS-232 Line Drivers/Receivers
Datasheet SP232A DatasheetSP232A Datasheet (PDF)

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 0.1μF 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 i.

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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 0.1μF 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 0.1μF 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 1 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 are not implied. Exposure to absolute maximum ratings conditions for extended periods of time may affect reliability. Supply Voltage (VCC)...............................................+ 6V V+........................................................................... (Vcc-0.3V) to +11.0V V- .............................................................................-11.0V Input Voltages Tin.....................................................-0.3V to (Vcc + 0.3V) Rin............................................................................+/-15V Output Voltages Tout...............................................(V+, +0.3V) to (V-, -0.3V Rout...................................................-0.3V to (Vcc + 0.3V) ABSOLUTE MAXIMUM RATINGS Short Circuit duration Tout.....................................................Continuous Package Power Dissipation: Plastic DIP...............................................375mW (derate 7mW/°C above +70°C) Small Outline...........................................375mW (derate 7mW/°C above +70°C) Storage Temperature..................-65°C to +150°C Lead Temperature (soldering, 10s).......... +300°C ELECTRICAL CHARACTERISTICS Vcc=5V ±10%, 0.1μF charge pump capacitors, Tmin to Tmax, unless otherwise noted, Typical values are Vcc=5V and Ta=25°C 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 μA 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 Output Voltage Swing All Transmitter outputs loaded with 3k ohms to GND +/-5.0 +/-6.5V Volts Output Resistance Vcc = 0V, Vout = +/-2V 300 Ohms Output Short Circuit Current Infinite Duration +/-18 mA Maximum Data Rate CL = 2500pF, RL = 3kΩ 120 240 kbps RS-232 INPUT Voltage Range -15 +15 Volts Voltage Threshold LOW Vcc = 5V, Ta=25°C 0.8 1.2 Volts Voltage Threshold HIGH Vcc = 5V, Ta=25°C 1.7 2.4 Volts Hysteresis Vcc = 5V, Ta=25°C 0.2 0.5 1.0 Volts Resistance Ta=25°C, -15V ≤ Vin ≤ +15V 3 5 7 kΩ SP232A_101_032420 2 ELECTRICAL CHARACTERISTICS Vcc=5V ±10%, 0.1μF charge pump capacitors, Tmin to Tmax, unless otherwise noted, Typical values are Vcc=5V and Ta=25°C DYNAMIC CHARACTERISTICS Driver Propagation Delay TTL to RS_232; CL = 50pF 1.5 3.0 μs Receiver Propagation Delay RS-232 to TTL, 0.1 1.0 μs Instantaneous Slew Rate CL = 10pF, RL = 3-7kΩ 30 V/ μs Transition Region Slew Rate CL = 2500pF, RL = 3kΩ; Measured from +3V to -3V or -3V to +3V 10 V/ μs POWER REQUIREMENTS Vcc Power Supply Current No Load, Vcc = 5V, Ta=25°C 1.5 5 mA Vcc Power Supply Current, Loaded All Transmitters RL = 3kΩ, Ta=25°C 11 mA Pin Number Pin Name PIN ASSIGNMENTS Pin Function 1 C1+ Positive terminal of the voltage doubler charge pump capacitor 2 V+ +6.5V generated by the charge pump 3 C1- Negative terminal of the voltage doubler charge pump capacitor 4 C2+ Positive terminal of the inverting charge pump capacitor 5 C2- Negative terminal of the inverting charge pump capacitor 6 V- -6.7V generated by the charge pump 7 T2OUT RS-232 driver output 8 R2IN RS-232 receiver input 9 R2OUT TTL/CMOS receiver output 10 T2IN TTL/CMOS driver input 11 T1IN TTL/CMOS driver input 12 R1OUT TTL/CMOS receiver output 13 R1IN RS-232 receiver input 14 T1OUT RS-232 driver output 15 GND Ground 16 Vcc 5V supply voltage SP232A_101_032420 3 DETAILED DESCRIPTION The SP232A transceiver is a two driver and two receiver device that meets the EIA/TIA- 232 and V.28 serial communication protocol. The device is pin-to-pin compatible with popular industry standard pinouts. The SP232A of.


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