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UCA9617 - LEVEL TRANSLATING FM+I2C-BUS REPEATER

General Description

The UCA9617 enables I2C-bus or SMBus translation down to VCC(A) as low as 0.8V without degradation of system performance.

The UCA9617 contains two bidirectional open-drain buffers specifically designed to support up-translation/down-translation between the low voltage (as low as 0.8V) and a 2.5V, 3.

Key Features

  • Footprint and functional replacement for UCA9617 at.
  • 0Hz to 1000kHz clock frequency (the maximum system Fast-mode speeds operating frequency may be less than 1000kHz because.
  • 2 channel, bidirectional buffer isolates capacitance and of the delays added by the repeater) allows 540pF on either side of the device at 1 MHz and.
  • Active HIGH repeater enable input referenced to VCC(B) up to 4000pF at lower speeds.
  • Open-drain input/outputs.
  • Voltage level translatio.

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Other Datasheets by Unisonic Technologies

Part Number Description
UCA9306 DUAL BIDIRECTIONAL I2C BUS AND SMBUS VOLTAGE-LEVEL TRANSLATOR

Full PDF Text Transcription (Reference)

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UNISONIC TECHNOLOGIES CO., LTD UCA9617 Preliminary LEVEL TRANSLATING FM+ I2C-BUS REPEATER CMOS IC  DESCRIPTION The UCA9617 enables I2C-bus or SMBus translation down to VCC(A) as low as 0.8V without degradation of system performance. The UCA9617 contains two bidirectional open-drain buffers specifically designed to support up-translation/down-translation between the low voltage (as low as 0.8V) and a 2.5V, 3.3V or 5V I2C-bus or SMBus. All inputs and I/Os are overvoltage tolerant to 5.5V even when the device is unpowered (VCC(B) and/or VCC(A)=0V). Using the UCA9617 enables the system designer to isolate two halves of a bus for both voltage and capacitance. The SDA and SCL pins are overvoltage tolerant and are high-impedance when the UCA9617 is unpowered.