FEATURES
ESD protection for RS-232 I/O pins: ±8 kV IEC 1000-4-2 contact discharge ±15 kV human body model 1 µA supply current achieved when in auto power-down 250 kbps minimum guaranteed data rate Guaranteed 6 V/µs slew rate range Guaranteed mouse drive ability 0.1 µF external capacitors Meets EIA/TIA-232 specifications down to 3V Available in SSOP 28 package DESCRIPTION
All transmitter outputs and receiver inputs are protected to ±8 kV using IEC 1000-4-2 contact discharge and ±15 kV using the human body model. The ST3241E has a proprietary low-dropout transmitter output stage enabling true RS-232 performance from a 3.0 V to 5.5 V supply with a dual charge pump. The device is guaranteed to run at data rates of 250 kbps while maintaining RS-232 output levels. It is a complete serial port (3 drivers, 5 receivers) intended for notebook or sub-notebook computers. Receivers R1 and R2 have extra outputs in addition to their standard outputs. These extra outputs are always active. Typical applications are in notebooks, subnotebooks, palmtop computers, battery-powered equipment, hand-held equipment, peripherals, and printers.
STMicroelectronics
