ZD25WQ80CTIGT

@@ -0,0 +1,51 @@+# ZD25WQ80CTIGT++**Zetta** · NOR FLASH · SOP-8++ZD25WQ80CTIGT 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 | CS# | input | Chip Select input (active low). Drive low to select the device and enable SPI/Dual/Quad communication; drive high to deselect and place the device into standby. |+| 2 | SO/IO1 | bidirectional | Serial Data Output in Standard SPI (SO). Becomes bidirectional I/O line IO1 in Dual and Quad SPI modes. Data is shifted out on the falling edge of SCLK. |+| 3 | WP#/IO2 | bidirectional | Write Protect input (active low) in Standard/Dual SPI mode - used with SRP bits to hardware-lock the Status Register. Becomes bidirectional IO2 in Quad SPI mode when the non-volatile Quad Enable (QE) bit is set. |+| 4 | VSS | power_in | Ground reference for the device. Connect to system ground. |+| 5 | SI/IO0 | bidirectional | Serial Data Input in Standard SPI (SI) - commands, addresses, and data are latched on the rising edge of SCLK. Becomes bidirectional I/O line IO0 in Dual and Quad SPI modes. |+| 6 | SCLK | input | Serial Clock input. Provides the timing for all serial data on IO0..IO3. Supports SPI Mode 0 and Mode 3 up to 104MHz. |+| 7 | HOLD#/IO3 | bidirectional | Hold input (active low) in Standard/Dual SPI mode - pausing serial communication without deselecting CS#. Becomes bidirectional IO3 in Quad SPI mode when the non-volatile Quad Enable (QE) bit is set. |+| 8 | VCC | power_in | Power supply input. Single-supply operating range 1.65V to 3.6V. Requires a local decoupling capacitor near the device. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Zetta |+| Package | SOP-8 |+| Category | Memory |+| Pins | 8 |++## Ordering variants++- `ZD25WQ80CTIGTT`+- `ZD25WQ80CTIGTS`+- `ZD25WQ80CTIGTO`+- `ZD25WQ80CTIGTE`+- `ZD25WQ80CTIGTN`++## CAD (KiCad official)++- Symbol: `ZD25WQ80CTIGT`+- 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](docs/zd25wq80ctigt-datasheet.pdf) (66 pp, sha256 `1fe1d5d4bda69b48`, 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](docs/zd25wq80ctigt-datasheet.pdf)

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