SP232ACT-L-TR Datasheet, PDF (3/11 Pages) Exar Corporation – Enhanced RS-232 Line Drivers/Receivers

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 ASSIGNMENTS
Pin Number Pin Name
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
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • [phone] • Fax [phone] • www.exar.com

SP232A_100_051308