ICL232 Datasheet, PDF (1/5 Pages) Intersil Corporation – +5V Powered, Dual RS-232 Transmitter/Receiver

SEMICONDUCTOR
ICL232
August 1997
+5V Powered, Dual RS-232 Transmitter/Receiver
Features
Description
• Meets All RS-232C and V.28 Specifications
• Requires Only Single +5V Power Supply
• Onboard Voltage Doubler/Inverter
• Low Power Consumption
• 2 Drivers
- ±9V Output Swing for +5V lnput
- 300Ω Power-off Source Impedance
- Output Current Limiting
- TTL/CMOS Compatible
- 30V/µs Maximum Slew Rate
• 2 Receivers
- ±30V Input Voltage Range
- 3kΩ to 7kΩ Input Impedance
- 0.5V Hysteresis to Improve Noise Rejection
• All Critical Parameters are Guaranteed Over the Entire
Commercial, Industrial and Military Temperature Ranges
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.
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.
Ordering Information
TEMP.
PART NUMBER RANGE (^oC)
PACKAGE
ICL232CPE
0 to 70 16 Ld PDIP
ICL232CBE
0 to 70 16 Ld SOIC
PKG.
NO.
E16.3
M16.3
Applications
• Any System Requiring RS-232 Communications Port
- Computer - Portable and Mainframe
- Peripheral - Printers and Terminals
- Portable Instrumentation
- Modems
• Dataloggers
ICL232lPE
ICL232lJE
ICL232lBE
ICL232MJE
-40 to 85 16 Ld PDIP
-40 to 85 16 Ld CERDIP
-40 to 85 16 Ld SOIC
-55 to 125 16 Ld CERDIP
E16.3
F16.3
M16.3
F16.3
Pinout
ICL232 (PDIP, CERDIP, SOIC)
TOP VIEW
C1+ 1
V+ 2
C1- 3
C2+ 4
C2- 5
V- 6
T2_{OUT 7}
R2_IN 8
16 V_CC
15 GND
14 T1_OUT
13 R1_IN
12 R1_OUT
11 T1_IN
10 T2_IN
9 R2_OUT
Functional Diagram
+5V
+
1.0µF
16
1µF
1µF
T1_IN
T2_IN
R1_OUT
1
+ ^C1+
V_CC
+5V TO 10V
2
3 _{C1- VOLTAGE INVERTER} ^V+
4
+ ^C2+
+10V TO -10V
5 _{C2- VOLTAGE INVERTER}
V- ⁶
+5V
T1
11 400kΩ
14
1µF
+
+ ^1µF
T1_OUT
+5V
T2
10 400kΩ
7
12
13
R1
5kΩ
T2_OUT
R1_IN
9
R2_OUT
8
R2
5kΩ
R2_IN
15
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright © Harris Corporation 1997
8-49
File Number 3020.5