# M41T00M6F

**STMicroelectronics** · Real Time Clocks · SOIC-8

M41T00M6F from STMicroelectronics, in a SOIC-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 | OSCI | input | Oscillator input for the external 32.768 kHz crystal (12.5 pF load capacitance integrated). |
| 2 | OSCO | output | Oscillator output to the external 32.768 kHz crystal (RS max 60 kΩ, 12.5 pF load capacitance integrated). |
| 3 | VBAT | power_in | Battery supply voltage, 2.5 V min to 3.5 V max, used for backup when VCC falls below the switchover point VSO. |
| 4 | VSS | power_in | Ground. |
| 5 | SDA | bidirectional | Serial data address input/output of the I2C bus (100 kHz), requires an external pull-up resistor. |
| 6 | SCL | input | Serial clock input of the I2C bus, up to 100 kHz, requires an external pull-up resistor. |
| 7 | FT/OUT | output | Open-drain frequency test (512 Hz) or output driver reflecting the OUT control bit, requires an external pull-up resistor, up to 5.5 V. |
| 8 | VCC | power_in | Supply voltage, 2.0 to 5.5 V clock operating range. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SOIC-8 |
| Category | Clock/Timing |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `M41T00M6F`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `m41t00m6f-etched.step` / `m41t00m6f-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `m41t00m6f.step` / `m41t00m6f.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [STMicroelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8565855625340624896) (25 pp, sha256 `19b4ba3db5e73ee2`, retrieved 2026-10-08, 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/m41t00m6f-datasheet.pdf)