DS1302 Trickle-Charge RTC

@@ -1,8 +1,11 @@ {+  "schema_version": 1,+  "type": "component",   "slug": "ds1302",+  "title": "DS1302 Trickle-Charge RTC",+  "brief": "Trickle-charge real-time clock with 31 bytes of RAM and a simple 3-wire interface.",   "version": "0.1.0",-  "type": "component",-  "description": "Trickle-charge real-time clock with 31 bytes of RAM and a simple 3-wire interface.",+  "license": "CC-BY-SA-4.0",   "tags": [     "rtc",     "real-time-clock",@@ -12,6 +15,120 @@     "adi",     "sop-8"   ],+  "component": {+    "mpn": "DS1302",+    "manufacturer": "Analog Devices",+    "package": "SOP-8 (208 mil)",+    "pin_count": 8,+    "category": "Clock / Timing",+    "subcategory": "Real-Time Clock (RTC)",+    "datasheet": "https://www.analog.com/media/en/technical-documentation/data-sheets/DS1302.pdf",+    "parts": {+      "symbol": "ds1302.kicad_sym",+      "footprint": "ds1302.kicad_mod",+      "model_3d": "ds1302.glb"+    },+    "distributor_links": {},+    "pins": [+      {+        "number": "1",+        "name": "VCC2",+        "type": "power_in",+        "description": "Primary power-supply pin in dual-supply configuration. The DS1302 operates from the larger of VCC1 or VCC2. When VCC2 is greater than VCC1 + 0.2V, VCC2 powers the DS1302; when VCC2 is less than VCC1, VCC1 powers the DS1302. Operating range 2.0V to 5.5V."+      },+      {+        "number": "2",+        "name": "X1",+        "type": "passive",+        "description": "Connection for a standard 32.768kHz quartz crystal. Internal oscillator is designed for a crystal with 6pF specified load capacitance. Can also be driven by an external 32.768kHz oscillator applied to X1 (with X2 floated)."+      },+      {+        "number": "3",+        "name": "X2",+        "type": "passive",+        "description": "Second connection for the 32.768kHz quartz crystal. Left floating when an external oscillator drives X1."+      },+      {+        "number": "4",+        "name": "GND",+        "type": "power_in",+        "description": "Device ground."+      },+      {+        "number": "5",+        "name": "CE",+        "type": "input",+        "description": "Chip enable input. CE must be asserted high during a read or write to enable the control logic and shift register access. Has an internal 40k-ohm (typ) pulldown to ground. Previous datasheet revisions referred to this pin as /RST; functionality is unchanged."+      },+      {+        "number": "6",+        "name": "I/O",+        "type": "bidirectional",+        "description": "Bidirectional serial data pin for the 3-wire interface. Push-pull output during read, high-impedance when CE is low, tri-stated on rising edge of SCLK. Has an internal 40k-ohm (typ) pulldown to ground."+      },+      {+        "number": "7",+        "name": "SCLK",+        "type": "input",+        "description": "Serial clock input used to synchronize data movement on the 3-wire serial interface. Has an internal 40k-ohm (typ) pulldown to ground."+      },+      {+        "number": "8",+        "name": "VCC1",+        "type": "power_in",+        "description": "Low-power/battery-backup supply pin. In systems using the trickle charger the rechargeable energy source (e.g. supercap or lithium cell) is connected to this pin. UL-recognized reverse-charging protection is required when used with a lithium battery."+      }+    ],+    "provenance": {+      "extractor": "ds2sf",+      "datasheet": {+        "url": "https://www.analog.com/media/en/technical-documentation/data-sheets/DS1302.pdf",+        "pages": 13,+        "sha256": "fb627b436b89e8c9",+        "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": "Real-time clock (RTC)",+      "Interface": "3-wire (CE, SCLK, I/O)",+      "Timekeeping": "Seconds to year, leap-year compensated to 2100",+      "RAM": "31 bytes scratchpad",+      "Backup": "Trickle-charge circuit for cap/cell",+      "Supply voltage": "2.0 V to 5.5 V",+      "Operating temperature": "-40 C to 85 C"+    }+  },+  "sections": [+    "hero",+    "viewers",+    "readme",+    "breadcrumbs",+    "info"+  ],+  "discovery_triggers": [+    "real-time clock",+    "battery-backed clock",+    "timekeeping",+    "3-wire RTC"+  ],+  "discovery_pitch": "A low-cost RTC that keeps date and time with a backup cell and talks over a simple 3-wire bus.",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  },   "dependencies": {},   "hero": {     "type": "image",@@ -27,10 +144,5 @@     "docs/ds1302-datasheet.pdf",     "viewers/symbol.html",     "viewers/footprint.html"-  ],-  "visibility": "public",-  "author": {-    "name": "Ray",-    "email": "[email protected]"-  }+  ] }\ No newline at end of file