| A0 | 1 • | 8 | Vcc |
| A1 | 2 | 7 | WP |
| A2 | 3 | 6 | SCL |
| GND | 4 | 5 | SDA |
| Pin | Symbol | Description |
|---|---|---|
| 1 | A0 | user-configurable chip select |
| 2 | A1 | user-configurable chip select |
| 3 | A2 | user-configurable chip select |
| 4 | GND | ground |
| 5 | SDA | serial data input/output |
| 6 | SCL | serial clock input |
| 7 | WP | write protect (active high) |
| 8 | Vcc | supply voltage |
| Parameter | Value | Unit |
|---|---|---|
| Minimum supply voltage | 1.7 (24AA256) 2.5 (24LC256) 1.7 (24FC256) | V |
| Maximum clock frequency | 100k (Vcc < 2.5V) 400k (24AA256) 400k (24LC256) 1M (24FC256) | Hz |
| Maximum write cycle time | 5 | ms |
| Endurance | 1 000 000 | cycles |
Note: Data is maintained by an independent source and accuracy is not guaranteed. Check with the manufacturer's datasheet for up-to-date information.