ICL232

Features:

• 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
- 300W Power-off Source Impedance
- Output Current Limiting
- TTL/CMOS Compatible
- 30V/ms Maximum Slew Rate
• 2 Receivers
- ±30V Input Voltage Range
- 3k to 7k Input Impedance
- 0.5V Hysteresis to Improve Noise Rejection
• All Critical Parameters are Guaranteed Over the Entire Commercial, Industrial and Military Temperature Ranges




Application

• Any System Requiring RS-232 Communications Port
- Computer - Portable and Mainframe
- Peripheral - Printers and Terminals
- Portable Instrumentation
- Modems
• Dataloggers




Pinout






Specifications

V_CC to Ground . . . . . .. . . . . . . . . . . . .(GND -0.3V) < V_CC < 6V
V+ to Ground . . . . . . .. . . . . . . . . . . . (V_CC -0.3V) < V+ < 12V
V- to Ground . . . . . . . . . . . . . . . . . . -12V < V- < (GND +0.3V)
Input Voltages
T1_IN, T2_IN. . . . . . . . . . . . . . . . . (V- -0.3V) < V_IN < (V+ +0.3V)
R1_IN, R2_IN . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . ±30V
Output Voltages
T1_OUT, T2_OUT . . . . . .. . . . . (V- -0.3V) < V_TXOUT < (V+ +0.3V)
R1_OUT, R2_OUT. . . . .. . . .(GND -0.3V) < V_RXOUT < (V_CC +0.3V)
Short Circuit Duration T1_OUT, T2_OUT. . . . . . . . . . Continuous
R1_OUT, R2_OUT. . . . . . . . . . . . . .. . . . . . . . . . . . . . Continuous




Description

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, slewrate- limited output, and 300 power-off source impedance. The receivers of the ICL232 can handle up to +30V, and have a 3k to 7k input impedance. The receivers also have hysteresis to improve noise rejection.