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PCA9570 Description

The PCA9570 is a CMOS device that provides 4 bits of General Purpose parallel Output (GPO) expansion in low voltage processor and handheld battery powered mobile applications. It operates at 1 MHz I2C-bus speeds while maintaining backward patibility to Fast-mode (400 kHz) and Standard-mode (100 kHz). The PCA9570 is a streamlined GPO that consists of 4-bit push-pull outputs that offer low current consumption, small...

PCA9570 Key Features

  • 1 MHz I2C-bus interface with 6 mA SDA sink capability for lightly loaded buses (<100 pF) and improved power consumption
  • pliant with the I2C-bus Fast and Standard modes
  • 1.1 V to 3.6 V operation
  • Latched outputs with a sink/source capability of 4 mA at 3.3 V
  • Readable device ID (manufacturer, device type, and revision)
  • Software Reset
  • Power-On Reset
  • Low standby current
  • 40 C to +85 C operation
  • Latch-up testing is done to JEDEC standard JESD78 which exceeds 100 mA

PCA9570 Applications

  • 1 MHz I2C-bus interface with 6 mA SDA sink capability for lightly loaded buses (<100 pF) and improved power consumption
  • pliant with the I2C-bus Fast and Standard modes
  • 1.1 V to 3.6 V operation
  • Latched outputs with a sink/source capability of 4 mA at 3.3 V