DS1307

@@ -1,8 +1,11 @@ {+  "schema_version": 1,+  "type": "component",   "slug": "ds1307",+  "title": "DS1307",+  "brief": "Analog Devices I2C real-time clock, DIP-8. BCD time/date, 56 B NVRAM, battery backup, square-wave out. Datasheet-verified.",   "version": "0.1.0",-  "type": "component",-  "description": "Analog Devices I2C real-time clock, DIP-8. BCD time/date, 56 B NVRAM, battery backup, square-wave out. Datasheet-verified.",+  "license": "CC-BY-SA-4.0",   "tags": [     "component",     "clock",@@ -12,6 +15,122 @@     "dip-8",     "analog-devices"   ],+  "component": {+    "mpn": "DS1307",+    "manufacturer": "Analog Devices",+    "package": "PDIP-8",+    "pin_count": 8,+    "category": "Clock IC",+    "subcategory": "I2C real-time clock",+    "datasheet": "https://cdn.sparkfun.com/datasheets/BreakoutBoards/DS1307.pdf",+    "parts": {+      "symbol": "ds1307.kicad_sym",+      "footprint": "ds1307.kicad_mod",+      "model_3d": "ds1307.glb"+    },+    "distributor_links": {},+    "pins": [+      {+        "number": "1",+        "name": "X1",+        "type": "input",+        "description": "Connection for a standard 32.768kHz quartz crystal (C_L = 12.5pF). X1 is the input to the internal oscillator and can optionally be connected to an external 32.768kHz oscillator (with X2 left floating)."+      },+      {+        "number": "2",+        "name": "X2",+        "type": "output",+        "description": "Connection for the second terminal of the 32.768kHz quartz crystal. X2 is the output of the internal oscillator; leave floating if an external oscillator drives X1."+      },+      {+        "number": "3",+        "name": "VBAT",+        "type": "power_in",+        "description": "Backup supply input for a standard 3V lithium cell or other energy source (2.0V to 3.5V, typ 3V). Powers the RTC and SRAM when VCC is removed; must be grounded if a backup supply is not used. Nominal power-fail trip point is 1.25 x VBAT."+      },+      {+        "number": "4",+        "name": "GND",+        "type": "power_in",+        "description": "Device ground reference. All voltages are referenced to this pin."+      },+      {+        "number": "5",+        "name": "SDA",+        "type": "bidirectional",+        "description": "I2C serial data input/output. Open-drain output requiring an external pullup resistor; pullup voltage may be up to 5.5V regardless of VCC. Bus capacitance is limited to 400pF and pin capacitance is <=10pF."+      },+      {+        "number": "6",+        "name": "SCL",+        "type": "input",+        "description": "I2C serial clock input (0 to 100kHz). Synchronizes data movement on the serial interface. Requires an external pullup resistor; pullup voltage may be up to 5.5V regardless of VCC."+      },+      {+        "number": "7",+        "name": "SQW/OUT",+        "type": "output",+        "description": "Square-wave / output driver. When SQWE is set to 1, drives one of four square-wave frequencies (1Hz, 4kHz, 8kHz, 32kHz). Open-drain output requiring an external pullup (up to 5.5V); operates from either VCC or VBAT. May be left floating if unused."+      },+      {+        "number": "8",+        "name": "VCC",+        "type": "power_in",+        "description": "Primary power supply (4.5V to 5.5V, typ 5.0V). Full read/write access to the device is enabled when VCC is within operating range; when VCC falls below 1.25 x VBAT the device switches to battery-backup mode and timekeeping continues from VBAT."+      }+    ],+    "provenance": {+      "extractor": "ds2sf",+      "datasheet": {+        "url": "https://cdn.sparkfun.com/datasheets/BreakoutBoards/DS1307.pdf",+        "pages": 14,+        "sha256": "4114781b89b9a71a",+        "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": "I2C real-time clock (RTC)",+      "Timekeeping": "seconds to year, BCD, leap-year",+      "NVRAM": "56 bytes general-purpose",+      "Backup": "VBAT coin-cell (keeps running)",+      "Interface": "I2C",+      "Timebase": "external 32.768 kHz crystal",+      "Output": "programmable square wave (1 Hz-32 kHz)",+      "Package": "PDIP-8"+    }+  },+  "sections": [+    "hero",+    "viewers",+    "readme",+    "breadcrumbs",+    "info"+  ],+  "discovery_triggers": [+    "ds1307",+    "real time clock",+    "i2c rtc",+    "rtc chip",+    "tiny rtc"+  ],+  "discovery_pitch": "DS1307 I2C real-time clock (DIP-8, battery-backed) with datasheet-verified pinout, KiCad symbol/footprint/3D, and full provenance.",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  },   "dependencies": {},   "hero": {     "type": "image",@@ -27,10 +146,5 @@     "docs/ds1307-datasheet.pdf",     "viewers/symbol.html",     "viewers/footprint.html"-  ],-  "visibility": "public",-  "author": {-    "name": "Ray",-    "email": "[email protected]"-  }+  ] }\ No newline at end of file