HG24C02MM from HGSEMI, in a MSOP-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	Hardware slave-address bit 0. Tie to VCC or VSS to set the least-significant device-address bit; internally pulled down to VSS if left floating so a total of up to 8 devices can share the bus.
2	E1	input	Hardware slave-address bit 1. Tie to VCC or VSS to set the middle device-address bit; internally pulled down to VSS if left floating.
3	E2	input	Hardware slave-address bit 2. Tie to VCC or VSS to set the most-significant device-address bit; internally pulled down to VSS if left floating.
4	VSS	power_in	Ground reference for the VCC supply.
5	SDA	bidirectional	I2C serial data. Open-drain bidirectional line for serial data transfer; requires an external pull-up resistor to VCC and may be wire-OR'ed with other open-drain devices on the bus.
6	SCL	input	I2C serial clock input. Positive edge clocks data into the device; negative edge clocks data out. Supports 100 kHz, 400 kHz, and 1 MHz modes.
7	WCB	input	Write control (active-low enable). When tied to VCC, all writes to the memory array are inhibited; when tied to VSS, normal write operation is permitted. Internally pulled down to VSS if left floating.
8	VCC	power_in	Positive supply voltage, 1.7 V to 5.5 V (absolute max 6.5 V). Read ICC typ 0.2 mA @ 400 kHz; write ICC typ 0.8 mA @ 400 kHz; standby ~1 uA @ 3.3 V.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

HG24C02MM/TR
HG24C02N
HG24C02M/TR
HG24C02M-4K/TR
HG24C02MT/TR
HG24C02DQ3/TR
HG24C02DQ2/TR
HG24C02M5/TR

CAD (KiCad official)

Symbol: HG24C02MM
Footprint: Package_SO:MSOP-8_3x3mm_P0.65mm
3D model: MSOP-8 (KiCad packages3D, STEP)

Provenance

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

Datasheet: HGSEMI datasheet (18 pp, sha256 ac9e22c1abbbd678, 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