AT24C02CMM

@@ -0,0 +1,52 @@+# AT24C02CMM++**HGSEMI** · EEPROM · MSOP-8++AT24C02CMM from HGSEMI, in a MSOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | E0 | input | Device address input bit 0. Hard-wired to VCC or GND to set the lower bit of the I2C slave address, allowing up to eight AT24C02C devices on one bus. Internally pulled down to GND if left floating. |+| 2 | E1 | input | Device address input bit 1. Hard-wired to VCC or GND to set a bit of the I2C slave address. Internally pulled down to GND if left floating. |+| 3 | E2 | input | Device address input bit 2. Hard-wired to VCC or GND to set the upper bit of the I2C slave address. Internally pulled down to GND if left floating. |+| 4 | GND | power_in | Ground reference for the power supply. Must be tied to system ground. |+| 5 | SDA | bidirectional | Serial Data. Open-drain bidirectional I2C data line; requires an external pull-up to VCC. Data is latched on the rising edge of SCL and driven on the falling edge. |+| 6 | SCL | input | Serial Clock. I2C clock input driven by the bus master; controls data transfer on SDA. Supports up to 400 kHz standard and 1 MHz high-speed rates. |+| 7 | WP | input | Hardware Write Protection input. When tied to VCC the entire memory array (and identification page) is write-protected (device becomes read-only); when tied to GND writes are enabled. Internally pulled down to GND if left floating. |+| 8 | VCC | power_in | Device power supply, 1.7 V to 5.5 V. Standby current 1 uA max, read/write current 0.5 mA max. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | HGSEMI |+| Package | MSOP-8 |+| Category | Memory |+| Pins | 8 |++## Ordering variants++- `AT24C02CMM/TR`+- `AT24C02CMMAT24C02CN`+- `AT24C02CMMAT24C02CM/TR`+- `AT24C02CMMAT24C02CMT/TR`+- `AT24C02CMMAT24C02CDQ/TR`+- `AT24C02CMMAT24C02CM5/TR`++## CAD (KiCad official)++- Symbol: `AT24C02CMM`+- Footprint: `Package_SO:MSOP-8_3x3mm_P0.65mm`+- 3D model: MSOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [HGSEMI datasheet](docs/at24c02cmm-datasheet.pdf) (27 pp, sha256 `0bf607f240ed128f`, retrieved 2026-08-17, tier: lcsc)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/at24c02cmm-datasheet.pdf)

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