AT24C01D-STUM-T-TUDI from Tudi, in a SOT-23-5. 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	SCL	input	Serial clock input. Used to positive-edge clock data into the EEPROM and negative-edge clock data out. Schmitt-triggered, open-drain bus line; requires an external pull-up resistor.
2	GND	power_in	Ground reference (0 V) for the device.
3	SDA	bidirectional	Serial data I/O. Bi-directional, open-drain; may be wire-ORed with other open-drain/open-collector devices. Requires an external pull-up resistor to VCC.
4	VCC	power_in	Positive supply input. Operating range 1.7 V to 5.5 V (D-variant tolerates up to 5.5 V, compatible down to 1.8 V).
5	WP	input	Write protect input. Tie to GND for normal read/write; tie to VCC to hardware-write-protect the full array. Internally biased low if left floating.

Key specifications

Parameter	Value
Manufacturer	Tudi
Package	SOT-23-5
Category	Memory
Pins	5

Ordering variants

AT24C01D-STUM-T-TUDI
AT24C01D-STUM-T-TUDISSHM-T-TUDI
AT24C01D-STUM-T-TUDIXHM-T-TUDI
AT24C01D-STUM-T-TUDITH-T-TUDI
AT24C01D-STUM-T-TUDIGT3-TUDI
AT24C01D-STUM-T-TUDIPUM-TUDI

CAD (KiCad official)

Symbol: AT24C01D-STUM-T-TUDI
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-23-5 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Tudi datasheet (18 pp, sha256 ad7501132ec29638, 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