# CAT24C04WI-GT3-TUDI

**Tudi** · EEPROM · SOP-8

CAT24C04WI-GT3-TUDI from Tudi, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | A0 | unconnected | Device address input in the pin table, but the datasheet states the A0 pin is no connect on the 4K (24C04) device, so it is not used for addressing. |
| 2 | A1 | input | Hardwired device address input; on the 4K device its value must match the A1 device address bit to select the chip. |
| 3 | A2 | input | Hardwired device address input whose level must compare to the A2 device address bit for the chip to respond. |
| 4 | GND | power_in | Ground reference for the device; the datasheet gives no separate limit for this pin beyond the absolute maximum input/output range of GND-0.3V to VCC+0.3V. |
| 5 | SDA | bidirectional | Open-drain serial data I/O that is normally pulled high by an external resistor, may be wire-ORed with other open-drain devices, and may change only while SCL is low. |
| 6 | SCL | input | Serial clock input: data is clocked into the device on the positive SCL edge and clocked out on the negative edge. |
| 7 | WP | input | Write Protect input: tie to GND for normal read/write operation, or tie to VCC to enable write protection of the full array. |
| 8 | VCC | power_in | Supply voltage, specified from 1.7V to 5.5V over the recommended operating range (absolute maximum DC supply is -0.3V to +6.5V). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Tudi |
| Package | SOP-8 |
| Category | Memory |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `CAT24C04WI-GT3-TUDI`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `cat24c04wi-gt3-tudi-etched.step` / `cat24c04wi-gt3-tudi-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cat24c04wi-gt3-tudi.step` / `cat24c04wi-gt3-tudi.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Tudi datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603384094911328256) (18 pp, sha256 `bef48f6768d926d5`, retrieved 2026-10-09, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/cat24c04wi-gt3-tudi-datasheet.pdf)