SP233A Datasheet, PDF (2/13 Pages) Exar Corporation – Enhanced RS-232 Line Drivers/Receivers

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.
Supply Voltage (VCC)....................................................+ 6V
V+........................................................................... (Vcc-0.3V) to +11.0V
V- .............................................................................-11.0V
Input Voltages
Tin.....................................................-0.3V to (Vcc + 0.3V)
Rin............................................................................+/-30V
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, EN, SD, ON/OFF
0.8
Volts
Logic Threshold HIGH
TIN, EN, SD, ON/OFF
2.0
Volts
Logic Pull-Up Current
TIN = 0V
15
200
μA
TTL OUTPUT
Output Voltge LOW
Iout = 3.2mA: Vcc = +5V
0.4
Volts
Output Voltage HIGH
Iout = -1.0mA
3.5
Volts
Leakage Current; Ta=25°C
EN = Vcc, 0V ≤ Vout ≤ Vcc
SP310A and SP312A only
0.05
+/-10
μA
RS-232 OUTPUT
Output Voltage Swing
All Transmitter outputs loaded
with 3k ohms to GND
+/-5.0 +/-9V
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
-25
+25
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, -25V ≤ Vin ≤ +25V
3
5
7
kΩ
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • [phone] • Fax [phone] • www.exar.com SP233A,310A,312A_100_051308