2 Pin Descriptions
The descriptions of the pins are listed in Table 2-1.
| Name | 8-Lead SOIC | Function |
|---|---|---|
| A0(1) | 1 | Device Address Input |
| A1(1) | 2 | Device Address Input |
| A2(1) | 3 | Device Address Input |
| GND | 4 | Ground |
| SDA | 5 | Serial Data |
| SCL | 6 | Serial Clock |
| WP(1) | 7 | Write-Protect |
| VCC | 8 | Device Power Supply |
Note:
- If the A0, A1, A2 or WP pins are not driven, they are internally pulled down to GND. In order to operate in a wide variety of application environments, the pull-down mechanism is intentionally designed to be somewhat strong. Once these pins are biased above the CMOS input buffer’s trip point (~0.5 x VCC), the pull‑down mechanism disengages. Microchip recommends connecting these pins to a known state whenever possible.