I2C address 0x27

One module in this catalog ships at 0x27: the TCA9534 I2C GPIO Expander.

TCA9534 I2C GPIO Expander

Can be moved to 0x20 or 0x21 or 0x22 or 0x23 or 0x24 or 0x25 or 0x26 with a jumper or pin.

PCF8575 16-Channel GPIO Expander

Ships at 0x20 and can be moved here.

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The newest record here was last changed on October 6, 2026.