ST232B and ST232C are 5V powered multi-channel RS-232 drivers and receivers. The features include a supply voltage range of 4.5V to 5.5V, a supply current of 5mA with no load, a transmitter output voltage swing of ±7.8V, controlled output slew rate, a receiver input voltage range of ±30V, a data rate of 220kbps, and an operating temperature range of -40°C to 85°C or 0°C to 70°C.