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SP232A Datasheet(PDF) 3 Page - Exar Corporation

Part # SP232A
Description  Enhanced RS-232 Line Drivers/Receivers
Download  10 Pages
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

SP232A Datasheet(HTML) 3 Page - Exar Corporation

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Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-7000 • Fax (50)668-707 • www.exar.com
SP232A_00_05308
DYnAMiC CHARACTERiSTiCS
Driver Propagation Delay
TTL to RS_232; CL = 50pF
.5
3.0
μs
Receiver Propagation Delay
RS-232 to TTL,
0.
.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
0
V/ μs
PoWER REQUiREMEnTS
Vcc Power Supply Current
No Load, Vcc = 5V, Ta
=25°C
.5
5
mA
Vcc Power Supply Current, Loaded
All Transmitters RL = 3kΩ,
Ta
=25°C

mA
ELECTRiCAL CHARACTERiSTiCS
Vcc=5V ±0%, 0.
μF charge pump capacitors, Tmin to Tmax
, unless otherwise noted, Typical values are Vcc=5V
and Ta
=25°C
Pin ASSignMEnTS
Pin number
Pin name
Pin Function

C+
Positive terminal of the voltage doubler charge pump
capacitor
2
V+
+6.5V generated by the charge pump
3
C-
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
0
T2IN
TTL/CMOS driver input

TIN
TTL/CMOS driver input
2
ROUT
TTL/CMOS receiver output
3
RIN
RS-232 receiver input
4
TOUT
RS-232 driver output
5
GND
Ground
6
Vcc
5V supply voltage


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