ZD25WQ16CTIGT

@@ -0,0 +1,58 @@+# ZD25WQ16CTIGT++**Zetta** · NOR FLASH · SOP-8++ZD25WQ16CTIGT 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. Drives the device into active mode on falling edge and into standby (SO High-Z) on rising edge. Must be pulled high externally when the master is idle. |+| 2 | SO/IO1 | bidirectional | Standard SPI Serial Data Output (SO); becomes bidirectional data line IO1 in Dual/Quad SPI and QPI modes. Data is shifted out on the falling edge of SCLK in standard mode. |+| 3 | WP#/IO2 | bidirectional | Write Protect input (active low) when QE=0, gating Status Register writes together with SRP1/SRP0. When QE=1 the pin serves as bidirectional Quad data line IO2. Do not tie directly to VCC/GND if Quad operation may be used. |+| 4 | VSS | power_in | Ground reference (0 V) for the device. Connect to the system ground plane with a short, low-inductance path. |+| 5 | SI/IO0 | bidirectional | Standard SPI Serial Data Input (SI); becomes bidirectional data line IO0 in Dual/Quad SPI and QPI modes. Data is latched on the rising edge of SCLK in standard mode. |+| 6 | SCLK | input | Serial Clock input, up to 104 MHz. Supports SPI mode 0 and mode 3 (CPOL/CPHA = 0/0 or 1/1). Input data is latched on the rising edge and output data is shifted on the falling edge. |+| 7 | HOLD#/IO3 | bidirectional | Hold input (active low) when QE=0; pausing serial communication while CS# stays low and driving SO High-Z. When QE=1 the pin serves as bidirectional Quad data line IO3. HOLD function is disabled in Quad I/O and QPI modes. |+| 8 | VCC | power_in | Device power supply, 1.65 V to 3.6 V for read, program and erase. Decouple to VSS with a 100 nF ceramic capacitor placed close to the pin. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Zetta |+| Package | SOP-8 |+| Category | Memory |+| Pins | 8 |++## Ordering variants++- `ZD25WQ16CTIGTCTIGT`+- `ZD25WQ16CTIGTCTIGR`+- `ZD25WQ16CTIGTCTEGT`+- `ZD25WQ16CTIGTCTEGR`+- `ZD25WQ16CTIGTCSIG`+- `ZD25WQ16CTIGTCSEG`+- `ZD25WQ16CTIGTCOIG`+- `ZD25WQ16CTIGTCOEG`+- `ZD25WQ16CTIGTCUIG`+- `ZD25WQ16CTIGTCUEG`+- `ZD25WQ16CTIGTCEIG`+- `ZD25WQ16CTIGTCEEG`++## CAD (KiCad official)++- Symbol: `ZD25WQ16CTIGT`+- 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/zd25wq16ctigt-datasheet.pdf) (87 pp, sha256 `bfa49c113191080d`, 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/zd25wq16ctigt-datasheet.pdf)

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