TM
ICL232
June 2001
+5V Powered, Dual RS-232 Transmitter/Receiver
Features
Description
itle
L23
• Meets All RS-232C and V.28 Specifications
• Requires Only Single +5V Power Supply
• Onboard Voltage Doubler/Inverter
• Low Power Consumption
The ICL232 is a dual RS-232 transmitter/receiver interface
circuit that meets all ElA RS-232C and V.28 specifications. It
requires a single +5V power supply, and features two
onboard charge pump voltage converters which generate
+10V and -10V supplies from the 5V supply.
b-
t
• 2 Drivers
The drivers feature true TTL/CMOS input compatibility, slew-
rate-limited output, and 300Ω power-off source impedance.
The receivers can handle up to +30V, and have a 3kΩ to 7kΩ
input impedance. The receivers also have hysteresis to
improve noise rejection.
V
w-
d,
al
-
-
9V Output Swing for +5V lnput
- 300Ω Power-off Source Impedance
- Output Current Limiting
- TTL/CMOS Compatible
- 30V/µs Maximum Slew Rate
Ordering Information
2
• 2 Receivers
ns-
t-
-
30V Input Voltage Range
TEMP.
PKG.
NO.
o
PART NUMBER RANGE ( C)
PACKAGE
- 3kΩ to 7kΩ Input Impedance
/Rec
er)
utho
)
ey-
rds
ter-
- 0.5V Hysteresis to Improve Noise Rejection
ICL232CPE
ICL232CBE
ICL232lPE
ICL232lBE
ICL232MJE
0 to 70
0 to 70
16 Ld PDIP
E16.3
• All Critical Parameters are Guaranteed Over the Entire
Commercial, Industrial and Military Temperature Ranges
16 Ld SOIC
16 Ld PDIP
16 Ld SOIC
16 Ld CERDIP
M16.3
E16.3
M16.3
F16.3
Applications
-40 to 85
-40 to 85
-55 to 125
• Any System Requiring RS-232 Communications Port
- Computer - Portable and Mainframe
- Peripheral - Printers and Terminals
- Portable Instrumentation
rpo-
ion)
re-
r ()
OCI
O
- Modems
• Dataloggers
Pinout
Functional Diagram
+5V
ICL232 (PDIP, CERDIP, SOIC)
+
TOP VIEW
f-
1.0µF
16
rk
V
1
C1+
V+
CC
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
1µF
1µF
CC
C1+
+
+
+
+
2
+5V TO 10V
VOLTAGE INVERTER
1µF
1µF
V+
V-
3
4
GND
T1
C1-
C2+
C1-
C2+
C2-
V-
ge-
de
se-
t-
OUT
+10V TO -10V
VOLTAGE INVERTER
6
5
C2-
R1
R1
T1
IN
+5V
T1
14
400kΩ
11
OUT
T1
T1
IN
OUT
+5V
400kΩ
T2
IN
IN
es
10
12
7
T2
T2
IN
OUT
T2
T2
OUT
OC-
EW
f-
13
R1
R1
IN
OUT
R2
IN
R2
OUT
5kΩ
5kΩ
R1
R2
9
8
R2
R2
IN
OUT
15
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Intersil and Design is a trademark of Intersil Americas Inc. | Copyright © Intersil Americas Inc. 2001
File Number 3020.6
1