CAT24C04WI-GT3

@@ -0,0 +1,56 @@+# CAT24C04WI-GT3++**onsemi** · EEPROM · SOIC-8++CAT24C04WI-GT3 from onsemi, in a SOIC-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 Connect. On the CAT24C04 the A0 address input is not used because internal address bit a8 is derived from the slave address. |+| 2 | A1 | input | Device Address Input bit 1. Sets one of the two external address bits used when cascading up to four CAT24C04 devices on the same I2C bus. Internal weak pull-down to VSS when undriven; typical input current up to 50 uA depending on VCC. |+| 3 | A2 | input | Device Address Input bit 2. Second external slave-address selection pin used when cascading up to four CAT24C04 devices. Internal weak pull-down to VSS when undriven. |+| 4 | VSS | power_in | Ground reference for the device (0 V). |+| 5 | SDA | bidirectional | Serial Data I/O for the I2C bus. Open-drain output - requires an external pull-up resistor to VCC. Receives input data and transmits EEPROM read data; output is clocked on the negative edge of SCL. |+| 6 | SCL | input | Serial Clock Input for the I2C bus. Accepts the clock generated by the master; supports Standard (100 kHz) and Fast (400 kHz) modes. Schmitt-trigger input with noise suppression filter. |+| 7 | WP | input | Write Protect input. When held HIGH, all write operations to the entire memory array are inhibited. Internal weak pull-down to VSS when undriven; leave HIGH to enable full write protection. |+| 8 | VCC | power_in | Positive supply voltage, 1.7 V to 5.5 V. Absolute maximum 6.5 V referenced to VSS. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | onsemi |+| Package | SOIC-8 |+| Category | Memory |+| Pins | 8 |++## Ordering variants++- `CAT24C04WI-GT3WI`+- `CAT24C04WI-GT3LI`+- `CAT24C04WI-GT3YI`+- `CAT24C04WI-GT3ZI`+- `CAT24C04WI-GT3USI`+- `CAT24C04WI-GT3VP2`+- `CAT24C04WI-GT3HU4`+- `CAT24C04WI-GT3TDI`+- `CAT24C04WI-GT3C4A`+- `CAT24C04WI-GT3C4U`++## CAD (KiCad official)++- Symbol: `CAT24C04WI-GT3`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [onsemi datasheet](https://www.onsemi.com/pdf/datasheet/cat24c04wi-gt3-d.pdf) (23 pp, sha256 `1068a4f09584c5b3`, retrieved 2026-08-17, tier: manufacturer)+- **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/cat24c04wi-gt3-datasheet.pdf)

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