ZHCSEZ2D January 2014 – October 2021 TCA9539-Q1
PRODUCTION DATA
Figure 8-5 shows the address byte of the TCA9539-Q1.
Figure 8-5 TCA9539-Q1 AddressTable 8-2 shows the address reference of the TCA9539-Q1.
| INPUTS | I2C BUS TARGET ADDRESS | |
|---|---|---|
| A1 | A0 | |
| L | L | 116 (decimal), 74 (hexadecimal) |
| L | H | 117 (decimal), 75 (hexadecimal) |
| H | L | 118 (decimal), 76 (hexadecimal) |
| H | H | 119 (decimal), 77 (hexadecimal) |
The last bit of the target 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.