PCA9671 - NXP

PCA9671 Remote 16-bit I/O expander

The PCA9671 provides general purpose remote I/O expansion for most microcontroller families via the two-line bidirectional bus (I2C-bus) and is a part of the Fast-mode Plus (Fm+) family. The PCA9671 is a drop in upgrade for the PCF8575 providing higher I2C-bus speeds (1 MHz versus 400 kHz) so that the output can support PWM dimming of LEDs, higher I2C-bus dr.

Features

 1 MHz I2C-bus interface
 Compliant with the I2C-bus Fast-mode and Standard-mode
 SDA with 30 mA sink capability for 4000 pF buses
 2.3 V to 5.5 V operation with 5.5 V tolerant I/Os
 16-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 400 mA
 Active LOW reset input
 64 programmable slave addresses using 3 address pins
 Readable device ID (manufacturer, device type, and revision)
 Low standby current
 40 C to +85 C operation
 ESD protection exceeds 2000 V HBM per JESD22-.