SN75C3221PWR Datasheet PDF - TI

The SN75C3221PWR is a RS-232 single-channel Line Driver/Receiver for use with battery-powered equipment. The SN75C3221 consist of one line driver, one line receiver and a dual charge-pump circuit with ±15kV ESD protection pin-to-pin (serial-port connection pins, including GND). This device provides the electrical interface between an asynchronous communication controller and the serial-port connector. The charge pump and four small external capacitors allow operation from a single 3 to 5.5V supply. This device operate at data signalling rates up to 1Mbps and a driver output slew rate of 24 to 150V/µs. Flexible control options for power management are available when the serial port is inactive. The auto-power-down feature functions when FORCEON is low and FORCEOFF is high. During this mode of operation, if the devices do not sense a valid RS-232 signal on the receiver input, the driver output is disabled.

● Auto-power-down feature automatically disables drivers for power savings

● RS-232 bus-pin ESD protection exceeds ±15kV using human-body model (HBM)

● 1µA Typical Low standby current

● 4 x 0.1µF External capacitors

● Green product and no Sb/Br