ZD24C08A-SSGMB from Zetta, 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	A2	input	Hardware device address input bit A2. Tie directly to VCC or GND to select one of two device addresses on the I2C bus. Internally pulled down to GND (weakly) when left floating; Zetta recommends driving to a known state.
2	NC	unconnected	Not internally bonded. May be left floating or tied to GND. (Corresponds to A1 on smaller-density variants; unused on the 8K device because that address bit is repurposed as page-select P1.)
3	NC	unconnected	Not internally bonded. May be left floating or tied to GND. (Corresponds to A0 on smaller-density variants; unused on the 8K device because that address bit is repurposed as page-select P0.)
4	GND	power_in	Ground reference for the power supply. Connect to system ground.
5	SDA	bidirectional	I2C serial data. Open-drain bidirectional line; must be pulled high with an external resistor (not exceeding 10 kOhm). May be wire-ORed with other open-drain/open-collector devices on the same bus.
6	SCL	input	I2C serial clock input from the bus master. Data on SDA is latched on the rising edge and output on the falling edge of SCL. Must be forced high when the bus is idle or pulled high through an external resistor.
7	WP	input	Write Protect (active high). Tie to GND for normal read/write operation; tie to VCC to inhibit all writes to the full memory array. Internally pulled down to GND when left floating; Zetta recommends driving to a known state.
8	VCC	power_in	Device power supply. Operations at invalid VCC voltages may produce spurious results and should not be attempted.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

ZD24C08A-SSGMB

CAD (KiCad official)

Symbol: ZD24C08A-SSGMB
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOP-8 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Zetta datasheet (22 pp, sha256 b348afafa94d42a8, 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