# FM24CL16B-GTR

**Infineon** · FRAM · SOIC-8

FM24CL16B-GTR from Infineon, 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. Not bonded to the die; may be left floating or tied to any potential. |
| 2 | NC | unconnected | No connect. Not bonded to the die; may be left floating or tied to any potential. |
| 3 | NC | unconnected | No connect. Not bonded to the die; may be left floating or tied to any potential. |
| 4 | VSS | power_in | Ground reference for the device. Must be connected to the system ground (0 V). |
| 5 | SDA | bidirectional | Serial Data/Address. Bi-directional open-drain I2C data line with Schmitt-trigger input and slope-controlled output; requires an external pull-up resistor to VDD. |
| 6 | SCL | input | Serial Clock input for the I2C interface. Data is clocked out of the device on the falling edge and into the device on the rising edge; supports up to 1 MHz. |
| 7 | WP | input | Write Protect. When tied to VDD, the entire memory map is write-protected; when tied to VSS, all addresses are write-enabled. Internally pulled down, so leaving it floating enables writes. |
| 8 | VDD | power_in | Power supply input, 2.7 V to 3.65 V. Bypass with a local decoupling capacitor to VSS near the pin. |

## Key specifications

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

## Ordering variants

Same part, different packaging or reel option.

- `FM24CL16B-GTR`
- `FM24CL16B-DG`
- `FM24CL16B-DGTR`

## CAD (KiCad official)

- Symbol: `FM24CL16B-GTR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `fm24cl16b-gtr-etched.step` / `fm24cl16b-gtr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `fm24cl16b-gtr.step` / `fm24cl16b-gtr.glb` are the bare package body.

## 3D model downloads

Two STEP files. Same geometry, different body top:

| File | Size | Use it when |
|---|---|---|
| [`fm24cl16b-gtr.step`](fm24cl16b-gtr.step) | 122 KB | You want the bare part, or you mark your own boards. |
| [`fm24cl16b-gtr-etched.step`](fm24cl16b-gtr-etched.step) | 2.3 MB | You want the part with `FM24CL16B-GTR` already on it. |

The marking in the etched file is real recessed geometry cut into the solid, not a
texture or a decal: 575 faces against 147 in the bare model. It
survives export, section views, and rendering in any CAD tool, and it drops straight
into KiCad or Fusion with no extra setup.

## Provenance

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

- **Datasheet:** [Infineon datasheet](docs/fm24cl16b-gtr-datasheet.pdf) (18 pp, sha256 `21bd44e8f5d068bb`, 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/fm24cl16b-gtr-datasheet.pdf)