Please help recommend a GPIO expansion chip, expand about 10 I / O ports, can make I2C interface
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Hello,
Port counts in I2C-controlled GPIO expanders tend to be multiples of 8 (since there are 8 bits per I2C read/write). If you needed 10 channels, then, the best solution would most likely be a 16-port device. For an initial recommendation you could look into TCA9555:
http://www.ti.com/product/TCA9555
Please let us know if you have any questions or feedback on the device. You can find our full catalog of these devices here:
http://www.ti.com/interface/i2c/general-purpose-ios-gpios/products.html#
Regards,
Max
Hi Max
Thanks for your advice.
1.8V - 4.5V
UQFN (RSV)
Sleep Mode uA
8bit
IIC
Is the TCA6408A suitable?
Hello,
Yes, TCA6408A will satisfy all of those requirements. Please let us know if you have any further questions concerning the device.
Regards,
Max