Other Parts Discussed in Thread: PCA9535
I understand TCA9535 or PCA9535 interface is I2C and Require external pull-up resistor on SCL and SDA lines.
We have a SPI-GPIO expander on board and it's QFC24. The big issue right now is the lead time is way too long (26+ weeks).
Our SPI-GPIO expander is kind of "pin compatible" with TCA9535/PCA9535 other than I2C vs. SPI.
Where I2C and its A[2:0] are on SPI + RESET pins of our SPI-GPIO expander
#1
Dose TI has SPI-GPIO expenader with pin compatible to TCA9535 or PCA9535?
#2
The SPI interface is connected to FPGA point-to-point without external pull-up on our board.
Again, I understand TCA9535 or PCA9535 interface is I2C and Require external pull-up resistor on SCL and SDA lines.
I like to check could TCA9535 or PCA9535 be used as a drop-in in our case? In which the connection is point-to-point directly to the FPGA.
Hope to hear from you ASAP. Thank you.