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PCA9559 - 5-bit multiplexed/1-bit latched 6-bit I2C EEPROM

Description

The primary function of the 5-bit multiplexer, 1-bit latch is to enable system configuration.

Features

  • 5-bit 2-to-1 multiplexer, 1-bit latch.
  • 6-bit internal non-volatile register.
  • Internal non-volatile register programmable and readable via I2C bus.
  • Override input forces all outputs to logic 0.
  • 5 open drain multiplexed outputs.
  • 1 open drain non-multiplexed (latched) output.
  • 5V and 2.5V tolerant inputs.
  • Useful for ‘jumperless’ configuration of PC motherboards.
  • 2 address pins, allowing up to 4 devices on the I2C bus.

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Full PDF Text Transcription

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INTEGRATED CIRCUITS PCA9559 5-bit multiplexed/1-bit latched 6-bit I2C EEPROM Product specification Supersedes data of 1999 Oct 20 2000 Jan 31 Philips Semiconductors Philips Semiconductors Product specification 5-bit multiplexed/1-bit latched 6-bit I2C EEPROM PCA9559 FEATURES •5-bit 2-to-1 multiplexer, 1-bit latch •6-bit internal non-volatile register •Internal non-volatile register programmable and readable via I2C bus •Override input forces all outputs to logic 0 •5 open drain multiplexed outputs •1 open drain non-multiplexed (latched) output •5V and 2.
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