SCPS129K August 2005 – March 2021 PCA9535
PRODUCTION DATA
Figure 8-6 shows the address byte of the PCA9535.
INPUTS | I2C BUS SLAVE ADDRESS | ||
---|---|---|---|
A2 | A1 | A0 | |
L | L | L | 32 (decimal), 20 (hexadecimal) |
L | L | H | 33 (decimal), 21 (hexadecimal) |
L | H | L | 34 (decimal), 22 (hexadecimal) |
L | H | H | 35 (decimal), 23 (hexadecimal) |
H | L | L | 36 (decimal), 24 (hexadecimal) |
H | L | H | 37 (decimal), 25 (hexadecimal) |
H | H | L | 38 (decimal), 26 (hexadecimal) |
H | H | H | 39 (decimal), 27 (hexadecimal) |
The last bit of the slave address defines the operation (read or write) to be performed. A high (1) selects a read operation, while a low (0) selects a write operation.