FM24C04D-SO-T-G from FUDAN MICRO, 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	unconnected	Not Connected. On the FM24C04D the device/page address pins A0-A2 are not internally used (page addressing is handled by the P0 bit inside the control byte). May be left floating or tied to GND for noise immunity.
2	A1	unconnected	Not Connected. Not internally used by the FM24C04D; may be left floating or tied to GND.
3	A2	unconnected	Not Connected. Not internally used by the FM24C04D; may be left floating or tied to GND.
4	GND	power_in	Ground reference (0 V). Common return for VCC and all logic signals.
5	SDA	bidirectional	Serial Data. Bidirectional I2C data line, open-drain driven and may be wire-ORed with other open-drain/open-collector devices. Requires an external pull-up resistor to VCC.
6	SCL	input	Serial Clock input. Clocks data in on the positive edge and out on the negative edge. Maximum 1 MHz (VCC = 2.5-5.5 V) or 400 kHz (VCC = 1.7 V). Requires an external pull-up resistor.
7	WP	input	Write Protect. Tie to GND for normal read/write operation; tie to VCC to hardware-protect the full 4K array from write operations. Must not be left floating (the datasheet notes it will be pulled to GND only if PCB coupling to VCC is <3 pF).
8	VCC	power_in	Supply voltage input. Operating range 1.7 V to 5.5 V (absolute max 6.25 V). Bypass locally with a 100 nF ceramic capacitor to GND.

Key specifications

Parameter	Value
Manufacturer	FUDAN MICRO
Package	SOP-8
Category	Memory
Pins	8

Ordering variants

Same part, different packaging or reel option.

FM24C04D-SO-T-G

CAD (KiCad official)

Symbol: FM24C04D-SO-T-G
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOP-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`fm24c04d-so-t-g.step`	122 KB	You want the bare part, or you mark your own boards.
`fm24c04d-so-t-g-etched.step`	2.4 MB	You want the part with `FM24C04D-SO-T-G` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 612 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: FUDAN MICRO datasheet (28 pp, sha256 6de6f35cf3aded6f, 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