MAX3221EUE+

MAX3221EUE+ is a +3V to +5.5V RS-232 transceiver with auto shutdown. When the MAX3221 do not sense a valid signal level on their receiver inputs, the onboard power supply and drivers shut down. This occurs if the RS-232 cable is disconnected or if the transmitters of the connected peripheral are turned off. The system turns on again when a valid level is applied to any RS-232 receiver input. The MAX3221 requires only 0.1µF capacitors in 3.3V operation, and can operate from input voltages ranging from +3.0V to +5.5V. A proprietary, high-efficiency, dual charge-pump power supply and a low-dropout transmitter combine to deliver true RS-232 performance from a single +3.0V to +5.5V supply. Typical applications include battery-powered equipment, hand-held equipment, peripherals and portable diagnostics equipment.

• 1-driver/1-receiver
• Charge pump circuitry eliminates the need for a bipolar ±12V supply
• 1µA supply current in shutdown mode saves power
• Auto shutdown feature is enabled after no activity on receiver inputs for 30µs
• Software control option for shutdown
• Temperature range from -40°C to +85°C
• Available in a 16 pin TSSOP package

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party