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UPD4721 - RS-232 LINE DRIVER/RECEIVER AT 3.3 V/5 V

Datasheet Summary

Features

  • Conforms to EIA/TIA-232-E (former name, RS-232C) standards.
  • Selectable +3.3 V/+5 V single power supply (selected by VCHA pin).
  • By setting the standby pin to a low level (standby mode), circuit current can be reduced. At such times, the driver output is in a high-impedance state.

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Datasheet preview – UPD4721

Datasheet Details

Part number UPD4721
Manufacturer NEC
File Size 123.61 KB
Description RS-232 LINE DRIVER/RECEIVER AT 3.3 V/5 V
Datasheet download datasheet UPD4721 Datasheet
Additional preview pages of the UPD4721 datasheet.

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Full PDF Text Transcription

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DATA SHEET MOS INTEGRATED CIRCUIT µP D 4 7 2 1 RS-232 LINE DRIVER/RECEIVER AT 3.3 V/5 V The µPD4721 is a high-breakdown voltage silicon gate CMOS line driver/receiver based on the EIA/TIA-232E standard. The internal DC/DC converter can switch between multiple voltages, realizing the allowing it to operate with a single +3.3 V or +5 V power supply. It also provides standby function. This IC incorporates 2 driver circuits and 2 receiver circuits. An RS-232 interface circuit can be easily configured by connecting 5 capacitors externally. FEATURES • Conforms to EIA/TIA-232-E (former name, RS-232C) standards • Selectable +3.3 V/+5 V single power supply (selected by VCHA pin) • By setting the standby pin to a low level (standby mode), circuit current can be reduced.
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