# AT24C02D-SSHM-T-TUDI

**Tudi** · EEPROM · SOP-8

AT24C02D-SSHM-T-TUDI from Tudi, 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 | input | Device address input bit 0. Hard-wired to VCC or GND to set the lower bit of the I2C slave address (1010_A2A1A0_R/W), allowing up to 8 devices on one bus. Internally biased low if left floating. |
| 2 | A1 | input | Device address input bit 1. Hard-wired to VCC or GND to set the middle bit of the I2C slave address. Internally biased low if left floating. |
| 3 | A2 | input | Device address input bit 2. Hard-wired to VCC or GND to set the upper user-selectable bit of the I2C slave address. Internally biased low if left floating. |
| 4 | GND | power_in | Ground reference for the device. |
| 5 | SDA | bidirectional | I2C serial data (bidirectional, open-drain). Requires an external pull-up resistor to VCC and may be wire-ORed with other open-drain devices on the bus. |
| 6 | SCL | input | I2C serial clock input. Data is clocked into the EEPROM on the positive edge and out of the EEPROM on the negative edge. Supports up to 1 MHz at VCC >= 2.5V (400 kHz at VCC >= 1.7V). |
| 7 | WP | input | Write-protect input. Tie to GND for normal read/write operation; tie to VCC to hardware write-protect the full 2K array. |
| 8 | VCC | power_in | Power supply input, 1.7V to 5.5V (2.5V to 5.5V for 1 MHz operation). Typical read current 0.14 mA @400 kHz, write current 0.28 mA, standby current ~0.03 uA. |

## Key specifications

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

## Ordering variants

- `AT24C02D-SSHM-T-TUDI`
- `AT24C02D-SSHM-T-TUDIXHM-T`
- `AT24C02D-SSHM-T-TUDITH-T`
- `AT24C02D-SSHM-T-TUDIPUM`
- `AT24C02D-SSHM-T-TUDISTUM-T`

## CAD (KiCad official)

- Symbol: `AT24C02D-SSHM-T-TUDI`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `at24c02d-sshm-t-tudi-etched.step` / `at24c02d-sshm-t-tudi-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `at24c02d-sshm-t-tudi.step` / `at24c02d-sshm-t-tudi.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Tudi datasheet](docs/at24c02d-sshm-t-tudi-datasheet.pdf) (None pp, sha256 `ad7501132ec29638`, 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/at24c02d-sshm-t-tudi-datasheet.pdf)