ZD24C512A-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	A0	input	Device address input bit 0. Hardwired address input compared against the corresponding bit in the I2C device address word (1010 A2 A1 A0 R/W), allowing up to 8 devices on one bus. Internally pulled down to Vss if left floating (Schmitt-trigger, filtered input).
2	A1	input	Device address input bit 1. Hardwired address input compared against the corresponding bit in the I2C device address word. Internally pulled down to Vss if left floating (Schmitt-trigger, filtered input).
3	A2	input	Device address input bit 2. Hardwired address input compared against the corresponding bit in the I2C device address word. Internally pulled down to Vss if left floating (Schmitt-trigger, filtered input).
4	VSS	power_in	Ground reference for the Vcc supply voltage. Connect to system ground.
5	SDA	bidirectional	I2C serial data input/output. Open-drain bidirectional line for command, address, and data transfer; requires an external pull-up resistor to Vcc and may be wire-OR'ed with other open-drain/open-collector devices.
6	SCL	input	I2C serial clock input. Positive-edge clocks data into the device and negative-edge clocks data out. Supports up to 1 MHz operation.
7	WP	input	Write protect (active-high). When tied to Vcc all write operations to the memory array are inhibited; when tied to Vss normal read/write operations are allowed. Internally pulled down to Vss if left floating.
8	VCC	power_in	Positive supply voltage input. Operating range 1.7 V to 5.5 V (grade M).

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

ZD24C512A-SSGMB
ZD24C512A-SSGMT
ZD24C512A-SSGMBSSPMB
ZD24C512A-SSGMBSSPMT
ZD24C512A-SSGMBPGM
ZD24C512A-SSGMBPPM
ZD24C512A-SSGMBXGM
ZD24C512A-SSGMBXPM
ZD24C512A-SSGMBMAGM
ZD24C512A-SSGMBMAPM
ZD24C512A-SSGMBSTGM
ZD24C512A-SSGMBSTPM
ZD24C512A-SSGMBUGM
ZD24C512A-SSGMBUPM
ZD24C512A-SSGMBU1GM
ZD24C512A-SSGMBU1PM
ZD24C512A-SSGMBCGM
ZD24C512A-SSGMBCPM

CAD (KiCad official)

Symbol: ZD24C512A-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 (21 pp, sha256 387962172238a30c, 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