The Analog Devices MAX3232CSE+ RS-232 Interface IC is a 3.0V to 5.5V low-power, up to 1Mbps transceivers using four 0.1µF external capacitors. It provides true RS-232 performance, operating from a single supply, and eliminates the need for level shifters. The device features flow control, data rates up to 1 Mb/s, TXD/RXD LED drivers, 3.3V/5V power supply operation, and a tiny SOT-23 package. It is ideal for low-voltage, low-power-consumption applications, such as notebook computers, hand-held PDAs, Palm-sized computers, and cell phones. The device also has two independent data flow control lines that are software programmable, allowing speeds up to 128 Kb/s in no-FSR mode and up to 1 Mb/s in FSR mode.