Sunday, August 5, 2012

Texas Instruments MAX3221 pdf datasheet download


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


− Battery-Powered, Hand-Held, and
Portable Equipment
− PDAs and Palmtop PCs
− Notebooks, Subnotebooks, and Laptops
− Digital Cameras
− Mobile Phones and Wireless Devices

description/ordering information

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.

Click here to download Texas Instruments MAX3221 pdf datasheet

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