# BR24T64FJ-WE2

**ROHM** · EEPROM · SOIC-8

BR24T64FJ-WE2 from ROHM, 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 | A0 | input | Slave address setting bit 0. Sets least significant bit of the device address on the I2C bus for multi-device addressing. Must not be left open - tie to VCC or GND. |
| 2 | A1 | input | Slave address setting bit 1. Sets middle bit of the device address on the I2C bus. Must not be left open - tie to VCC or GND. |
| 3 | A2 | input | Slave address setting bit 2. Sets most significant address bit for the I2C slave address. Must not be left open - tie to VCC or GND. |
| 4 | GND | power_in | Ground reference (0V) for all inputs, outputs, and supply. |
| 5 | SDA | bidirectional | I2C serial data input/output. Open-drain, requires an external pull-up resistor to VCC. VOL1 = 0.4V max at IOL = 3.0mA (2.5V <= VCC <= 5.5V). |
| 6 | SCL | input | I2C serial clock input. Supports Fast Mode up to 400kHz. VIH >= 0.7*VCC (1.7V <= VCC <= 5.5V) or 0.8*VCC (1.6V <= VCC < 1.7V). |
| 7 | WP | input | Write protect input. When tied high, write operations to the EEPROM array are inhibited; when low, writes are permitted. tHIGH:WP >= 1.0us. |
| 8 | VCC | power_in | Positive supply input, 1.6V to 5.5V single-supply operation. Absolute max +6.5V. ICC = 2.0mA (write) / 0.5mA (read) at VCC=5.5V, fSCL=400kHz. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ROHM |
| Package | SOIC-8 |
| Category | Memory |
| Pins | 8 |

## Ordering variants

- `BR24T64FJ-WE2`
- `BR24T64FJ-WE2BR24T64-W`
- `BR24T64FJ-WE2BR24T64-WZ`
- `BR24T64FJ-WE2BR24T64F-W`
- `BR24T64FJ-WE2BR24T64FV-W`
- `BR24T64FJ-WE2BR24T64FVT-W`
- `BR24T64FJ-WE2BR24T64FVJ-W`
- `BR24T64FJ-WE2BR24T64FVM-W`
- `BR24T64FJ-WE2BR24T64NUX-W`

## CAD (KiCad official)

- Symbol: `BR24T64FJ-WE2`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `br24t64fj-we2-etched.step` / `br24t64fj-we2-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `br24t64fj-we2.step` / `br24t64fj-we2.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ROHM datasheet](docs/br24t64fj-we2-datasheet.pdf) (37 pp, sha256 `093b518c59a8029f`, 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/br24t64fj-we2-datasheet.pdf)