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PCA9500 Datasheet 8-bit I2c And Smbus I/o Port

Manufacturer: NXP Semiconductors

Overview: PCA9500 8-bit I2C-bus and SMBus I/O port with 2-kbit EEPROM Rev. 4.1 — 5 May 2017 Product data sheet 1.

General Description

The PCA9500 is an 8-bit I/O expander with an on-board 2-kbit EEPROM.

The I/O expander's eight quasi-bidirectional data pins can be independently assigned as inputs or outputs to monitor board level status or activate indicator devices such as LEDs.

The system master writes to the I/O configuration bits in the same way as for the PCF8574.

Key Features

  • Eight general purpose input/output expander/collector.
  • Drop-in replacement for PCF8574 with integrated 2-kbit EEPROM.
  • Internal 256  8 EEPROM.
  • Self timed write cycle.
  • 4 byte page write operation.
  • I2C-bus and SMBus interface logic.
  • Internal power-on reset.
  • Noise filter on SCL/SDA inputs.
  • Three address pins allowing up to eight devices on the I2C-bus/SMBus.
  • No glitch on power-up.
  • Supports hot insertion.
  • Power-up with all channels configu.

More Datasheets from NXP Semiconductors

Part Number Description
PCA9501 8-bit I2C and SMBus I/O port
PCA9504A Glue chip 4
PCA9505 40-bit I2C-bus I/O port
PCA9508 Hot swappable level translating I2C-bus repeater
PCA9509 Level translating I2C-bus/SMBus repeater
PCA9510 Hot swappable I2C and SMBus bus buffer
PCA9511 Hot swappable I2C and SMBus bus buffer
PCA9512 Level shifting hot swappable I2C and SMBus buffer
PCA9512A Level shifting hot swappable I2C-bus and SMBus bus buffer
PCA9512B Level shifting hot swappable I2C-bus and SMBus bus buffer

PCA9500 Distributor