AT24C02CM from HGSEMI, 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	E0	input	Device address input bit 0. Hard-wired to VCC or GND to set the LSB of the I2C slave address, allowing up to eight AT24C02C devices on one bus. Internally pulled down to GND if left floating.
2	E1	input	Device address input bit 1. Hard-wired to VCC or GND to set the middle bit of the I2C slave address. Internally pulled down to GND if left floating.
3	E2	input	Device address input bit 2. Hard-wired to VCC or GND to set the MSB of the three-bit hard-wired portion of the I2C slave address. Internally pulled down to GND if left floating.
4	GND	power_in	Ground reference for the supply and I2C signals. Connect to system ground.
5	SDA	bidirectional	I2C serial data line. Open-drain bidirectional pin used to serially transfer address and data. Requires an external pull-up resistor to VCC. Incorporates a Schmitt-trigger input with integrated spike-suppression filter.
6	SCL	input	I2C serial clock input. Data on SDA is latched on the rising edge and clocked out on the falling edge. Requires an external pull-up resistor to VCC. Supports up to 1 MHz.
7	WP	input	Hardware Write Protection. Tie to VCC to write-protect the entire memory array (device becomes read-only); tie to GND to enable writes. Internally pulled down to GND if left floating. When WP is high the device ACKs address bytes but NACKs data bytes.
8	VCC	power_in	Device power supply, 1.7 V to 5.5 V. Bypass to GND with a local decoupling capacitor. Operation at voltages outside this range is not recommended.

Key specifications

Parameter	Value
Manufacturer	HGSEMI
Package	SOP-8
Category	Memory
Pins	8

Ordering variants

AT24C02CM/TR
AT24C02CMT/TR
AT24C02CMM/TR
AT24C02CMCDQ/TR
AT24C02CM5/TR

CAD (KiCad official)

Symbol: AT24C02CM
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
`at24c02cm.step`	122 KB	You want the bare part, or you mark your own boards.
`at24c02cm-etched.step`	1.8 MB	You want the part with `AT24C02CM` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 460 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: HGSEMI datasheet (26 pp, sha256 33906220275012e7, 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