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UT3222 - 3V TO 5.5V MULTICHANNEL RS-232 LINE TRANSCEIVERS

General Description

The UTC UT3222 have two receivers and two drivers, and a dual charge-pump circuit.

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.

Key Features

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  • Exceeds ±8KV ESD Protection(HBM) for RS-232 I/O Pins.
  • Meets the Requirements of TIA/EIA-232-F and ITU V.28 Standards.
  • Operates With 3.0V to 5.5V VCC Supply.
  • Operates Up To 250kbit/s Data Rate.
  • Two Drivers and Two Receivers.
  • Low Standby Current 1μA Typical.
  • External Capacitors 4×0.1μF.
  • Accepts 5.0V Logic Input With 3.3V Supply.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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UNISONIC TECHNOLOGIES CO., LTD UT3222 3.0V TO 5.5V LOW POWER MULTICHANNEL RS-232 LINE TRANSCEIVERS USING FOR 0.1μF EXTERNAL CAPACITORS  DESCRIPTION The UTC UT3222 have two receivers and two drivers, and a dual charge-pump circuit. 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 3.0V to 5.5V supply. The device operates at data signaling rates up to 250kbit/s and a maximum of 35V/μs driver output slew rate. The UTC UT3222 can be placed in the power-down mode by setting PWRDOWN low, which draws only 1μA from the power supply.