ST3222B ST3222C 3 to 3.6 V, low power, up to 400 k.
STMicroelectronics
ST3222C - RS-232 drivers/receivers
ST3222B ST3222C 3 to 3.6 V, low power, up to 400 kbps RS-232 drivers and receivers Features ■ 300 µA supply current ■ 250 kbps minimum guarantee data.