AT24C02CN from HGSEMI, in a DIP-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-wire to VCC or GND to set one of the three lower address bits, allowing up to eight AT24C02C devices on a single I2C bus. Internally pulled down to GND if left floating. Schmitt-trigger, filtered input.
2	E1	input	Device address input bit 1. Hard-wire to VCC or GND to set the device address; internally pulled down to GND if left floating.
3	E2	input	Device address input bit 2. Hard-wire to VCC or GND to set the device address; internally pulled down to GND if left floating.
4	GND	power_in	Ground reference for the power supply. Connect to system ground.
5	SDA	bidirectional	Serial Data. Open-drain bidirectional I2C data line; requires an external pull-up resistor to VCC. Data is latched on the rising edge of SCL and output on the falling edge of SCL.
6	SCL	input	Serial Clock input. Clocks data into and out of the device on the SDA line. Command/input data on SDA is latched on the rising edge of SCL; output data is clocked out on the falling edge of SCL.
7	WP	input	Write Protect. Tie to VCC to hardware write-protect the entire memory array and Identification Page (device becomes read-only). Tie to GND (or leave floating; internal pull-down to GND) to enable write operations. When WP is high, device address and word address bytes are ACK'd but data bytes are not.
8	VCC	power_in	Device power supply, 1.7 V to 5.5 V. Standby current 1 uA max; read/write current 0.5 mA max. Bypass with a local decoupling capacitor to GND.

Key specifications

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

Ordering variants

AT24C02CNN
AT24C02CNM/TR
AT24C02CNMM/TR
AT24C02CNMT/TR
AT24C02CNDQ/TR
AT24C02CNM5/TR

CAD (KiCad official)

Symbol: AT24C02CN
Footprint: Package_DIP:DIP-8_W7.62mm
3D model: DIP-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`at24c02cn.step`	271 KB	You want the bare part, or you mark your own boards.
`at24c02cn-etched.step`	1.8 MB	You want the part with `AT24C02CN` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 452 faces against 148 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 (27 pp, sha256 02466a83d5aae04e, 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