The MAX3221IPW is a RS-232 Line Driver and Receiver with dedicated enable pin and a dual charge-pump circuit and ±15kV ESD protection pin to pin (serial-port connection pins, including GND). The device meets the requirements of TIA/EIA-232-F and 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 operates at data signalling rate up to 250kbps and a maximum of 30V/µs driver output slew rate. Flexible control options for power management are available when the serial port is inactive. The automatic power-down feature functions when FORCEON is low and FORCEOFF is high. During this mode of operation, if the device does not sense a valid RS-232 signal on the receiver input, the driver output is disabled and the supply current is reduced to 1µA.
● Alternative high-speed pin-compatible device (1Mbps) for SNx5C3221
● Automatic power-down feature automatically disables drivers for power savings
The MAX3221EIPW is a 3 to 5.5V single-channel RS-232 Line Driver/Receiver features one driver and one receiver. This driver/receiver operates with 3 to 5.5V VCC supply and It has auto-power down feature which automatically disables drivers for power savings. Accepts 5V logic input with 3.3V supply.Expand
