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U74LVC4245 - OCTAL BUS TRANSCEIVER AND 3.3V TO 5V SHIFTER

General Description

This 8-bit (octal) noninverting bus transceiver contains two separate supply rails; B port has VCCB, which is set at 3.3V, and A port has VCCA, which is set at 5V.

This allows for translation from a 3.3V to a 5V environment, and vice versa.

Key Features

  • S.
  • Bidirectional voltage translator.
  • 5.5V on A port and 2.7V to 3.6V on B port.
  • Control inputs VIH/VIL levels are referenced to VCC voltage.

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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 U74LVC4245 Preliminary OCTAL BUS TRANSCEIVER AND 3.3V TO 5V SHIFTER WITH 3-STATE OUTPUTS  DESCRIPTION This 8-bit (octal) noninverting bus transceiver contains two separate supply rails; B port has VCCB, which is set at 3.3V, and A port has VCCA, which is set at 5V. This allows for translation from a 3.3V to a 5V environment, and vice versa. The U74LVC4245 device is designed for asynchronous communication between data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable ( OE ) input can be used to disable the device so the buses are effectively isolated. The control circuitry (DIR, OE ) is powered by VCCA.