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M41T56M6F

Public Made by Adom

by adom

STMicroelectronics Real Time Clocks, SOIC-8-150mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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M41T56M6F

STMicroelectronics · Real Time Clocks · SOIC-8-150mil

M41T56M6F from STMicroelectronics, in a SOIC-8-150mil. 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, which has 12.5 pF load capacitance integrated in the device.
2 OSCO output Oscillator output to the external 32.768 kHz crystal (printed as OCSO in Table 1), with a maximum crystal series resistance of 60 kΩ.
3 VBAT power_in Battery supply input, 2.5 to 3.5 V (3 V typ), with 450 nA typical battery current at 3 V; the device switches to it when VCC falls below VBAT.
4 VSS power_in Ground.
5 SDA bidirectional I2C serial data input/output, which needs a pull-up resistor to a positive supply and supports up to 100 kHz.
6 SCL input I2C serial clock input from the master, 0 to 100 kHz, which needs a pull-up resistor to a positive supply.
7 FT/OUT output Open-drain frequency test (512 Hz) or output driver pin reflecting the OUT bit, which needs an external pull-up resistor and has VOL max 0.4 V at 5 mA.
8 VCC power_in Main supply voltage, 4.5 to 5.5 V, with timekeeping down to 2.5 V and an absolute maximum of 7 V.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package SOIC-8-150mil
Category Clock/Timing
Pins 8

CAD (KiCad official)

  • Symbol: M41T56M6F
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8-150mil (KiCad packages3D, STEP)
  • 3D model files: m41t56m6f-etched.step / m41t56m6f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); m41t56m6f.step / m41t56m6f.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (27 pp, sha256 59407420b31f518c, retrieved 2026-10-10, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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