ZD24C32A-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	NC	unconnected	No Connect. Not bonded to a die pad. May be tied to GND or left floating.
2	NC	unconnected	No Connect. Not bonded to a die pad. May be tied to GND or left floating.
3	NC	unconnected	No Connect. Not bonded to a die pad. May be tied to GND or left floating.
4	GND	power_in	Ground reference for the power supply. Connect to system ground.
5	SDA	bidirectional	Serial Data. Open-drain bidirectional I/O for serial data transfer. Requires an external pull-up resistor to VCC (not to exceed 10 kΩ). Can be wire-ORed with other open-drain/open-collector devices on the same bus.
6	SCL	input	Serial Clock input from the master. Data on SDA is latched on the rising edge of SCL and clocked out on the falling edge. Must be forced high or pulled high via external resistor when the bus is idle. Supports up to 1 MHz (Fast Mode Plus at 2.5-5.5V).
7	WP	input	Write Protect (active high). Tie to GND for normal write operations; tie to VCC to inhibit all writes to the memory array. If left floating it is internally pulled down to GND, but a defined connection is recommended.
8	VCC	power_in	Device power supply, 1.7V to 5.5V (2.5V to 5.5V for 1 MHz Fast Mode Plus operation). Operations at invalid VCC 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.

ZD24C32A-SSGMT
ZD24C32A-SSGMB
ZD24C32A-SSGMBSSPMT
ZD24C32A-SSGMBSSPMB
ZD24C32A-SSGMBXGMT
ZD24C32A-SSGMBXGMB
ZD24C32A-SSGMBXPMT
ZD24C32A-SSGMBXPMB
ZD24C32A-SSGMBMAGMT
ZD24C32A-SSGMBMAGMB
ZD24C32A-SSGMBMAPMT
ZD24C32A-SSGMBMAPMB
ZD24C32A-SSGMBPGMT
ZD24C32A-SSGMBPGMB
ZD24C32A-SSGMBPPMT
ZD24C32A-SSGMBPPMB
ZD24C32A-SSGMBSTGMT
ZD24C32A-SSGMBSTGMB
ZD24C32A-SSGMBSTPMT
ZD24C32A-SSGMBSTPMB
ZD24C32A-SSGMBCGMT
ZD24C32A-SSGMBCGMB
ZD24C32A-SSGMBCPMT
ZD24C32A-SSGMBCPMB
ZD24C32A-SSGMBUGMT
ZD24C32A-SSGMBUGMB
ZD24C32A-SSGMBUPMT
ZD24C32A-SSGMBUPMB
ZD24C32A-SSGMBU1GMT
ZD24C32A-SSGMBU1GMB
ZD24C32A-SSGMBU1PMT
ZD24C32A-SSGMBU1PMB

CAD (KiCad official)

Symbol: ZD24C32A-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 (28 pp, sha256 1ee3f07c57169b62, 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