Design Files
Receive the full breakdown. See the product footprint and more in the eCad file.
- No Longer Manufactured
- PCA8575DK
Remote 16-bit I/O expander for I2C-bus with interrupt
- This page contains information on a product that is no longer manufactured (discontinued). Specifications and information herein are available for historical reference only.
The PCA8575 provides general purpose remote I/O expansion for many microcontroller families via the two-line bidirectional I²C-bus (serial clock (SCL), serial data (SDA)).
The device consists of a 16-bit quasi-bidirectional port and an I²C-bus interface. The PCA8575 has a low current consumption and includes latched outputs with high current drive capability for directly driving LEDs.
The PCA8575 also possesses an interrupt line (INT) which can be connected to the interrupt logic of the microcontroller. By sending an interrupt signal on this line, the remote I/O can inform the microcontroller if there is incoming data on its ports without having to communicate via the I²C-bus. The internal Power-On Reset (POR) initializes the I/Os as inputs.
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Documentation
Quick reference to our documentation types.
1-5 of 7 documents
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User Guide
I2C-bus specification and user manual
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User Guide
PCA9698 demonstration board OM6281
