W25Q128FV

@@ -0,0 +1,52 @@+# W25Q128FV++**Winbond** · 128 Mbit SPI NOR flash · SOIC-8 (208 mil)++A 128 Mbit (16 MB) serial NOR flash from the Winbond W25Q family, in the wide SOIC-8, the go-to external storage for firmware, fonts, logs, and file systems. It speaks Standard, Dual, and Quad SPI plus QPI, clocking to 104 MHz (up to a 416 MHz-equivalent throughput in Quad), and organizes the array in uniform 4 KB sectors for fine-grained erase. The six SPI pins (CS, CLK, DI/IO0, DO/IO1, WP/IO2, HOLD/IO3) double as the four data lines in Quad mode. Runs from a single 2.7-3.6 V supply.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | /CS | input | Chip Select input (active LOW). Enables the device for SPI/QPI transactions; when HIGH, DO/IO pins are high-impedance and the device is deselected. |+| 2 | DO (IO1) | bidirectional | Serial Data Output in Standard SPI (MISO). Bidirectional IO1 in Dual/Quad SPI and QPI modes carrying data in both directions on shared bus lines. |+| 3 | /WP (IO2) | bidirectional | Write Protect input (active LOW) in Standard/Dual SPI - protects the Status Register from being written. Reused as IO2 in Quad SPI/QPI modes when Quad Enable (QE) bit is set. |+| 4 | GND | power_in | Ground reference (0V). |+| 5 | DI (IO0) | bidirectional | Serial Data Input in Standard SPI (MOSI) - clocked in on CLK rising edge. Bidirectional IO0 in Dual/Quad SPI and QPI modes. |+| 6 | CLK | input | Serial Clock input. Provides the timing for serial input and output; up to 104MHz operation. |+| 7 | /HOLD or /RESET (IO3) | bidirectional | Hold input (active LOW) pauses serial communication without deselecting the device, or Reset input (active LOW) depending on Status Register HOLD/RST bit. Reused as IO3 in Quad SPI/QPI modes when QE=1. |+| 8 | VCC | power_in | Power supply, 2.7V to 3.6V. Active current typically 4mA; power-down current <1uA. |++## Key specifications++| Parameter | Value |+|---|---|+| Type | Serial NOR flash memory |+| Density | 128 Mbit (16 MB) |+| Interface | Standard / Dual / Quad SPI + QPI |+| Max clock | 104 MHz (416 MHz equiv. Quad) |+| Erase granularity | 4 KB sector (uniform) |+| Endurance | 100k erase/program cycles |+| Supply voltage | 2.7-3.6 V |+| Package | SOIC-8 (208 mil) |++## Ordering variants++- `W25Q128FVSIG (SOIC-8, 208 mil)`+- `W25Q128FVSSIG (SOIC-8)`++## CAD (KiCad official)++- Symbol: `Memory_Flash:W25Q128JVS`+- Footprint: `Package_SO:SOIC-8_5.3x5.3mm_P1.27mm`+- 3D model: SOIC-8 208 mil (KiCad packages3D)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Winbond datasheet](https://www.pjrc.com/teensy/W25Q128FV.pdf) (100 pp, sha256 `c545e2594435d1a1`, retrieved 2026-08-17, tier: manufacturer)+- **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/w25q128-datasheet.pdf)

@@ -0,0 +1,37 @@+{+  "slug": "w25q128",+  "version": "0.1.0",+  "type": "component",+  "description": "Winbond 128 Mbit (16 MB) 3 V serial NOR flash, SOIC-8. Standard/Dual/Quad SPI, 104 MHz, 4 KB sectors. Datasheet-verified.",+  "tags": [+    "component",+    "memory",+    "flash",+    "nor-flash",+    "spi",+    "quad-spi",+    "soic-8",+    "winbond"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "w25q128.kicad_sym",+    "w25q128.kicad_mod",+    "w25q128.glb",+    "docs/hero.png",+    "docs/w25q128-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html"+  ],+  "visibility": "public",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  }+}\ No newline at end of file