AT24C08CM

@@ -0,0 +1,52 @@+# AT24C08CM++**HGSEMI** · EEPROM · SOP-8++AT24C08CM from HGSEMI, in a SOP-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 | NC | unconnected | No internal connection. Leave floating or tie to ground; do not use as a signal via. |+| 2 | NC | unconnected | No internal connection. Leave floating or tie to ground; do not use as a signal via. |+| 3 | E2 | input | Device Address Input. Selects one of two device address values so up to two AT24C08C devices can share a single 2-wire bus (E2 must match address bit E2 in the device address byte). Tie directly to VCC or GND; if left floating, an internal pull-down forces the pin to GND. |+| 4 | GND | power_in | Ground reference for the power supply. Connect to the system ground. |+| 5 | SDA | bidirectional | Serial Data. Open-drain bidirectional data line used to serially transfer address and data between the master and the EEPROM; requires an external pull-up resistor to VCC. Schmitt-trigger input with integrated spike-suppression filter. |+| 6 | SCL | input | Serial Clock. Clock input from the master; data on SDA is latched into the device on the rising edge and clocked out on the falling edge. Supports up to 400 kHz standard and 1 MHz high-speed operation. |+| 7 | WP | input | Write Protect. Tie to VCC to hardware write-protect the entire memory array (device becomes read-only); tie to GND to enable writes. Left floating, an internal pull-down forces the pin to GND. |+| 8 | VCC | power_in | Device power supply, 1.7 V to 5.5 V. Bypass locally with a 0.1 uF ceramic capacitor to GND. Operation outside the specified range may produce spurious results. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | HGSEMI |+| Package | SOP-8 |+| Category | Memory |+| Pins | 8 |++## Ordering variants++- `AT24C08CM/TR`+- `AT24C08CMAT24C08CN`+- `AT24C08CMM/TR`+- `AT24C08CMT/TR`+- `AT24C08CMAT24C08CDQ/TR`+- `AT24C08CM5/TR`++## CAD (KiCad official)++- Symbol: `AT24C08CM`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [HGSEMI datasheet](docs/at24c08cm-datasheet.pdf) (25 pp, sha256 `e1c182cb482476f4`, 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/at24c08cm-datasheet.pdf)

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