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PCA9673

NXP Semiconductors
Part Number PCA9673
Manufacturer NXP Semiconductors
Description Remote 16-bit I/O expander
Published Jul 11, 2009
Detailed Description PCA9673 Remote 16-bit I/O expander for Fm+ I2C-bus with interrupt and reset Rev. 2 — 29 September 2011 Product data s...
Datasheet PDF File PCA9673 PDF File

PCA9673
PCA9673

Overview
PCA9673 Remote 16-bit I/O expander for Fm+ I2C-bus with interrupt and reset Rev.
2 — 29 September 2011 Product data sheet 1.
General description The PCA9673 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 family.
The PCA9673 is a drop in upgrade for the PCF8575 providing higher Fast-mode Plus (Fm+) I2C-bus speeds (1 MHz versus 400 kHz) so that the output can support PWM dimming of LEDs, higher I2C-bus drive (30 mA versus 3 mA) so that many more devices can be on the bus without the need for bus buffers, higher total package sink capacity (400 mA versus 100 mA) that supports ha...


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