MAX3221CDB Datasheet PDF - TI

●description

●The MAX3221 consists of one line driver, one line receiver, and a dual charge-pump circuit with ±15-kV ESD protection pin to pin (serial-port connection pins, including GND). The device meets the requirements of TIA/EIA-232-F and provides the electrical interface between an asynchronous communication controller and the serial-port connector. The charge pump and four small external capacitors allow operation from a single 3-V to 5.5-V supply. These devices operate at data signaling rates up to 250 kbit/s and a maximum of 30-V/µs driver output slew rate.

●RS-232 Bus-Pin ESD Protection Exceeds ±15 kV Using Human-Body Model (HBM)

●Meets or Exceeds the Requirements of TIA/EIA-232-F and ITU v.28 Standards

●Operates With 3-V to 5.5-V VCC Supply

●Operates Up To 250 kbit/s

●One Driver and One Receiver

●Low Standby Current...1 µA Typical

●External Capacitors...4 ×0.1 µF

●Accepts 5-V Logic Input With 3.3-V Supply

●Alternative High-Speed Pin-Compatible Device (1 Mbit/s)

●  − SNx5C3221

●Auto-Powerdown Feature Automatically Disables Drivers for Power Savings

●Applications

●− Battery-Powered, Hand-Held, and Portable Equipment

●− PDAs and Palmtop PCs

●− Notebooks, Subnotebooks, and Laptops

●− Digital Cameras

●− Mobile Phones and Wireless Devices