ZHCSNJ0G September 2006 – March 2021 PCA9538
PRODUCTION DATA
Figure 7-6 shows the address byte of the PCA9538.
Figure 7-6 PCA9538 AddressTable 7-2 shows the PCA9538 address reference.
| INPUTS | I2C BUS SLAVE ADDRESS | |
|---|---|---|
| A1 | A0 | |
| L | L | 112 (decimal), 70 (hexadecimal) |
| L | H | 113 (decimal), 71 (hexadecimal) |
| H | L | 114 (decimal), 72 (hexadecimal) |
| H | H | 115 (decimal), 73 (hexadecimal) |
The last bit of the slave address defines the operation (read or write) to be performed. When it is high (1), a read is selected while a low (0) selects a write operation.