25LC256

@@ -1,8 +1,11 @@ {+  "schema_version": 1,+  "type": "component",   "slug": "25lc256",+  "title": "25LC256",+  "brief": "Microchip 256 Kbit (32 KB) SPI EEPROM, SOIC-8. Byte/page write, 1M+ cycles, write protect. The SPI 24LC256. Datasheet-verified.",   "version": "0.1.0",-  "type": "component",-  "description": "Microchip 256 Kbit (32 KB) SPI EEPROM, SOIC-8. Byte/page write, 1M+ cycles, write protect. The SPI 24LC256. Datasheet-verified.",+  "license": "CC-BY-SA-4.0",   "tags": [     "component",     "memory",@@ -12,6 +15,123 @@     "soic-8",     "microchip"   ],+  "component": {+    "mpn": "25LC256",+    "manufacturer": "Microchip Technology",+    "package": "SOIC-8",+    "pin_count": 8,+    "category": "Memory",+    "subcategory": "256 Kbit SPI EEPROM",+    "datasheet": "https://ww1.microchip.com/downloads/aemDocuments/documents/MPD/ProductDocuments/DataSheets/25AA256-25LC256-256K-SPI-Bus-Serial-EEPROM-20001822H.pdf",+    "parts": {+      "symbol": "25lc256.kicad_sym",+      "footprint": "25lc256.kicad_mod",+      "model_3d": "25lc256.glb"+    },+    "distributor_links": {},+    "pins": [+      {+        "number": "1",+        "name": "CS",+        "type": "input",+        "description": "Chip Select input (active-low, overbar CS). Drive low to select the device and initiate an SPI instruction; drive high to deselect and place SO in high-impedance. Requires TCSS setup (\u226550 ns @ Vcc\u22654.5 V) before the first SCK edge."+      },+      {+        "number": "2",+        "name": "SO",+        "type": "output",+        "description": "Serial Data Output (MISO). Shifts data out on the falling edge of SCK, MSB first. High-impedance when CS is high or HOLD is low. Drive strength: VOH = Vcc-0.5 V @ IOH = -400 \u00b5A."+      },+      {+        "number": "3",+        "name": "WP",+        "type": "input",+        "description": "Write-Protect input (active-low, overbar WP). When low and the WPEN bit in the status register is set, prevents writes to the status register (hardware write-protect). Tie high (or leave floating with pull-up) for normal operation."+      },+      {+        "number": "4",+        "name": "VSS",+        "type": "power_in",+        "description": "Ground reference for all supply, logic, and I/O signals. Connect to system 0 V."+      },+      {+        "number": "5",+        "name": "SI",+        "type": "input",+        "description": "Serial Data Input (MOSI). Command bytes, addresses, and write data are shifted in on the rising edge of SCK, MSB first. Data setup Tsu \u2265 10 ns @ Vcc \u2265 4.5 V."+      },+      {+        "number": "6",+        "name": "SCK",+        "type": "input",+        "description": "Serial Clock Input. Provides the clock for all serial data transfers on SI/SO. Maximum 10 MHz @ Vcc \u2265 4.5 V (5 MHz @ 2.5-4.5 V, 3 MHz @ 1.8-2.5 V for 25AA256). Supports SPI Mode 0,0 and Mode 1,1."+      },+      {+        "number": "7",+        "name": "HOLD",+        "type": "input",+        "description": "Hold input (active-low, overbar HOLD). Drive low to pause the current SPI transaction while CS remains asserted; SO goes high-impedance and SI/SCK transitions are ignored. Drive high to resume. Tie high if not used."+      },+      {+        "number": "8",+        "name": "VCC",+        "type": "power_in",+        "description": "Supply voltage input. 2.5-5.5 V for 25LC256 (1.8-5.5 V for 25AA256). Absolute max 6.5 V. Typical operating current 2.5 mA read / 0.6 mA write @ 5.5 V; standby 0.1 \u00b5A typ. Decouple with 0.1 \u00b5F close to the pin."+      }+    ],+    "provenance": {+      "extractor": "ds2sf",+      "datasheet": {+        "url": "https://ww1.microchip.com/downloads/aemDocuments/documents/MPD/ProductDocuments/DataSheets/25AA256-25LC256-256K-SPI-Bus-Serial-EEPROM-20001822H.pdf",+        "pages": 31,+        "sha256": "b25667250a0ee8d3",+        "source_tier": "mfr"+      },+      "cad": "KiCad official (CC-BY-SA 4.0)",+      "pins": {+        "total": 8,+        "described": 8,+        "cites_pages": true,+        "refuses_to_fabricate": true+      }+    },+    "viewers": {+      "symbol": "viewers/symbol.html",+      "footprint": "viewers/footprint.html"+    }+  },+  "metadata": {+    "specs": {+      "Type": "Serial EEPROM (non-volatile)",+      "Density": "256 Kbit (32 KB)",+      "Interface": "SPI (up to 10 MHz)",+      "Write": "byte or 64-byte page",+      "Endurance": "1,000,000+ cycles",+      "Retention": ">200 years",+      "Protection": "WP pin + block-protect bits",+      "Supply voltage": "1.8-5.5 V",+      "Package": "SOIC-8"+    }+  },+  "sections": [+    "hero",+    "viewers",+    "readme",+    "breadcrumbs",+    "info"+  ],+  "discovery_triggers": [+    "25lc256",+    "spi eeprom",+    "serial eeprom",+    "32kb eeprom",+    "nonvolatile memory"+  ],+  "discovery_pitch": "25LC256 256 Kbit SPI EEPROM (SOIC-8) with datasheet-verified pinout, KiCad symbol/footprint/3D, and full provenance.",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  },   "dependencies": {},   "hero": {     "type": "image",@@ -27,10 +147,5 @@     "docs/25lc256-datasheet.pdf",     "viewers/symbol.html",     "viewers/footprint.html"-  ],-  "visibility": "public",-  "author": {-    "name": "Ray",-    "email": "[email protected]"-  }+  ] }\ No newline at end of file