The MAX3238EAI+ is a 1µA, up to 250Kbps, true RS232 transceiver with AutoShutdown Plus in 28 pin SSOP package. The 5 driver/3 receiver complete serial port is a 3V-powered EIA/TIA-232 and V.28/V.24 communications interface intended for notebook or subnotebook computer applications. A proprietary, high efficiency, dual charge-pump power supply and a low dropout transmitter combine to deliver true RS232 performance from a single supply. When device does not sense a valid signal transition on either the receiver or transmitter inputs within 30sec, the on-board power supply and drivers shut down. This occurs if the RS232 cable is disconnected or if transmitters of the connected peripheral are inactive. The system turns on again when a valid transition is applied to any RS232 receiver or transmitter input, saving power without changes to the existing BIOS or operating system.
Supply voltage range is 3V to 5.5V
Operating temperature range from -40°C to 85°C
1µA supply current achieved with AutoShutdown Plus, low power shutdown supply current of 1µA
Flow-through pin out
Meets EIA/TIA-232 specifications down to 3V
Maximum transition-region slew rate is 30V/µs at CL = 150pF to 1000pF
Transmitter skew is 100ns (typical) & receiver skew is 50ns (typical)
