AT24C04M

@@ -0,0 +1,54 @@+# AT24C04M++**HGSEMI** · EEPROM · SOP-8++AT24C04M 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 | A0/NC | unconnected | Not used on AT24C04 (A0 device-address pin is a no-connect on the 4Kb variant). May be left floating or tied to GND. On the 2Kb AT24C02 this pin selects the least-significant device-address bit. |+| 2 | A1 | input | Device-address hardware input bit A1. Must match the A1 bit in the device-address byte transmitted by the master. Allows up to four AT24C04 devices on a single I2C bus. |+| 3 | A2 | input | Device-address hardware input bit A2. Must match the A2 bit in the device-address byte transmitted by the master. Combined with A1 it selects one of four devices on the bus. |+| 4 | GND | power_in | Ground reference for supply and I/O signals (0 V). |+| 5 | SDA | bidirectional | Bi-directional I2C serial data. Open-drain output, requires an external pull-up resistor to VCC (typ. 4.7 kΩ). May be wire-ORed with other open-drain devices on the same bus. |+| 6 | SCL | input | I2C serial clock input. Positive edges clock data into the EEPROM; negative edges clock data out. Up to 1 MHz at 5 V, 400 kHz at 1.8/2.5/2.7 V. |+| 7 | WP | input | Hardware Write Protect. Tie to GND for normal read/write operations; tie to VCC to write-protect the full 4K array. Schmitt-triggered, filtered input. |+| 8 | VCC | power_in | Positive supply, 1.7 V to 5.5 V. Decouple with a 100 nF ceramic capacitor to GND close to the pin. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | HGSEMI |+| Package | SOP-8 |+| Category | Memory |+| Pins | 8 |++## Ordering variants++- `AT24C04MM/TR`+- `AT24C04MM-4K/TR`+- `AT24C04MN`+- `AT24C04MMM/TR`+- `AT24C04MM5/TR`+- `AT24C04MM8/TR`+- `AT24C04MDQ3/TR`+- `AT24C04MDQ2/TR`++## CAD (KiCad official)++- Symbol: `AT24C04M`+- 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/at24c04m-datasheet.pdf) (19 pp, sha256 `436467b62ca478ef`, 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/at24c04m-datasheet.pdf)

@@ -0,0 +1,34 @@+{+  "slug": "at24c04m",+  "version": "0.1.0",+  "type": "component",+  "description": "HGSEMI EEPROM, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+  "tags": [+    "component",+    "memory",+    "at24c04m"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "at24c04m.kicad_sym",+    "at24c04m.kicad_mod",+    "at24c04m.glb",+    "at24c04m.step",+    "at24c04m.lbr",+    "docs/hero.png",+    "docs/at24c04m-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html"+  ],+  "visibility": "public",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  }+}\ No newline at end of file