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SP3244E Datasheet, PDF (4/22 Pages) Sipex Corporation – 3.0V to 5.5V RS-232 Transceivers with Auto On-Line® Plus
ELECTRICAL CHARACTERISTICS
Parameters
Receiver Inputs
Input Voltage Range
Symb
Test Conditions
Min. Typ. Max. Unit
+15
-15
V
Input Threshold Low
Vcc = 3.3V
0.6
1.0
V
Vcc = 5.0V
0.8
1.2
Input Threshold High
Vcc = 3.3V
1.2 2.4
V
Input Hysteresis
Input Resistance
Driver Outputs
Output Voltage Swing
Vcc = 5.0V
Ta = 25ºC
1.7 2.4
V
200
mV
3
5
7
kΩ
Vo
All transmitter outputs loaded
with 3kΩ to GND
±5.0 ±5.4
V
Output load = Open Circuit
±15.0
Short Circuit Current
Vout = 0V
±100 mA
Power-Off Impedance
Vcc = V+ = V- = 0, transmitter
outputs = ±2V
300 10M
Ω
Output Leakage Current
Vcc = 0 or 3V to 3.3V,
Vout = ±12V, Drivers disabled
±25 µA
Mouse Drivability
T1IN = T2IN = GND, T3IN =
Vcc, T3 loaded with 3kΩ to
GND, T1OUT and T2OUT
±5.0
V
loaded with 2.5mA each, Ta =
25ºC
ESD Protection
ESD Protection for RxIn,
TxOut pins
Human Body Model
±15
kV
All Other Pins
Human Body Model
±2
kV
Auto On-Line® Plus (ONLINE = GND, SHUTDOWN = Vcc)
Rx Input Threshold to
STATUS Output High
±2.7 V
Rx Input Threshold to
STATUS Output Low
±0.3
V
Threshold to STATUS High
tsth
Threshold to STATUS Low
tstl
Rx or Tx Transition to
Drivers Enabled
tonline
Last Rx or Tx Transition to
Drivers Disabled
toffline
Note 1: Characterized, not 100% tested
Note 1
0.4
μs
30
μs
100
μs
15
30
60 sec
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com

SP3244E_SP3245E_100_121509