General Description
The MAX3222/MAX3232/MAX3237/MAX3241 transceivers have a proprietary low-dropout transmitter output stage enabling true RS-232 performance from a 3.0V to 5.5V supply with a dual charge pump. The devices require only four small 0.1µF external charge pump capacitors. The MAX3222, MAX3232, and MAX3241 are guaranteed to run at data rates of 120kbps while maintaining RS-232 output levels. The MAX3237 is guaranteed to run at data rates of 250kbps in the normal operating mode and 1Mbps in the MegaBaud™ operating mode, while maintaining RS-232 output levels.

FEATUREs
♦ Low Supply Current:
   300µA (MAX3222/MAX3232/MAX3241)
   500µA (MAX3237)
♦ Guaranteed Data Rate:
   120kbps (MAX3222/MAX3232/MAX3241)
   250kbps (MAX3237—Normal Operation)
   1Mbps (MAX3237—MegaBaud Operation)
♦ 1µA Low-Power Shutdown with Receivers Active
   (MAX3222/MAX3237/MAX3241)
♦ Flow-Through Pinout (MAX3237)
♦ Meets EIA/TIA-232 Specifications Down to 3.0V
♦ Guaranteed Mouse Driveability (MAX3241)
♦ Pin Compatible with Industry-Standard MAX232 (MAX3232)
   Pin Compatible with Industry-Standard MAX242 (MAX3222)
♦ Guaranteed Slew Rate:
   6V/µs (MAX3222/MAX3232/MAX3237/MAX3241)
   24V/µs (MAX3237—MegaBaud Operation)

APPLICATIONs
   Notebook, Subnotebook, and Palmtop Computers
   High-Speed Modems
   Battery-Powered Equipment
   Hand-Held Equipment
   Peripherals
   Printers