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Datasheet is here: [[Media:PCF8574.pdf]]


{| border="1" cellpadding="4"
|-
| Pin # || Name
|-
| 1 || Soft Reset A
|-
| 2 || Soft Reset B
|-
| 3 || Soft Reset C
|-
| 4 || Soft Reset D
|-
| 5 || Soft Reset E
|-
| 6 || Soft Reset F
|-
| 7 || I2C traffic
|-
| 8 || Clear upset regs
|}

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