The ICL232CBEZT 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 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. 
Feature
 
 
 
  - 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 input
- 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 
- Pb-free (RoHS compliant)