PCA9670D - NXP

PCA9670D Remote 8-bit I/O expander

The PCA9670 provides general-purpose remote I/O expansion via the two-wire bidirectional I2C-bus (serial clock (SCL), serial data (SDA)). The devices consist of eight quasi-bidirectional ports, 1 MHz 30 mA drive I2C-bus interface, three hardware address inputs and a reset input operating between 2.3 V and 5.5 V. 1 MHz I2C-bus Fast-mode Plus (Fm+) can support.

Features

 I2C-bus to parallel port expander
 1 MHz I2C-bus interface (Fast-mode Plus I2C-bus)
 SDA with 30 mA sink capability for 4000 pF buses
 Operating supply voltage 2.3 V to 5.5 V with 5.5 V tolerant I/Os held to VDD with 100 A current source
 8-bit remote I/O pins that default to inputs at power-up
 Latched outputs with 25 mA sink capability for directly driving LEDs
 Total package sink capability of 200 mA
 Active LOW reset input
 Sixty-four programmable slave addresses using three address pins
 Readable device ID (manufacturer, device type, and revision)
 Software reset
 Low standb.