component
MCP7940NT-I
Public Made by Adomby adom
Microchip Real-time Clocks (RTC), SOIC-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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page.json+122−8@@ -1,13 +1,132 @@ {+ "schema_version": 1,+ "type": "component", "slug": "mcp7940nt-i",+ "title": "MCP7940NT-I",+ "brief": "Microchip Real-time Clocks (RTC), SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.", "version": "0.1.0",- "type": "component",- "description": "Microchip Real-time Clocks (RTC), SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "license": "CC-BY-SA-4.0", "tags": [ "component", "rtc", "mcp7940nt-i" ],+ "component": {+ "mpn": "MCP7940NT-I",+ "manufacturer": "Microchip",+ "package": "SOIC-8",+ "pin_count": 9,+ "category": "RTC",+ "subcategory": "Real-time Clocks (RTC)",+ "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/5093447976d64b9ab2cb1808413f6a3f.pdf",+ "parts": {+ "symbol": "mcp7940nt-i.kicad_sym",+ "footprint": "mcp7940nt-i.kicad_mod",+ "model_3d": "mcp7940nt-i.glb",+ "model_3d_step": "mcp7940nt-i.step",+ "lbr": "mcp7940nt-i.lbr"+ },+ "distributor_links": {},+ "pins": [+ {+ "number": "1",+ "name": "X1",+ "type": "input",+ "description": "Quartz crystal input / external oscillator input. Connects to one terminal of the 32.768 kHz tuning-fork crystal (optimized for 6-9 pF load capacitance) with its external load capacitor to VSS. Also usable as the external clock input when driving the device from an external oscillator."+ },+ {+ "number": "2",+ "name": "X2",+ "type": "output",+ "description": "Quartz crystal output. Connects to the second terminal of the 32.768 kHz crystal with its external load capacitor to VSS. Leave floating when using an external oscillator driving X1."+ },+ {+ "number": "3",+ "name": "VBAT",+ "type": "power_in",+ "description": "Battery backup supply input, 1.3 V to 5.5 V. Maintains RTCC and SRAM when VCC is lost; typical timekeeping backup current is 925 nA at 3.0 V. Tie to VSS if the battery backup feature is not used."+ },+ {+ "number": "4",+ "name": "VSS",+ "type": "power_in",+ "description": "Device ground (0 V) reference for VCC and VBAT rails and all logic signals."+ },+ {+ "number": "5",+ "name": "SDA",+ "type": "bidirectional",+ "description": "Bidirectional I2C serial data (open-drain). Requires an external pull-up resistor to VCC (typ. 10 k\u03a9 at 100 kHz or 2 k\u03a9 at 400 kHz). Data may change only while SCL is low; changes while SCL is high signal Start/Stop conditions."+ },+ {+ "number": "6",+ "name": "SCL",+ "type": "input",+ "description": "I2C serial clock input from the bus master, used to synchronize data transfer to/from the device. Supports clock rates up to 400 kHz. Schmitt-trigger input with 50 ns spike suppression; requires an external pull-up to VCC."+ },+ {+ "number": "7",+ "name": "MFP",+ "type": "output",+ "description": "Multifunction output (open-drain). Configurable as alarm output on an alarm match, as a selectable-frequency square-wave output, or as a general-purpose output driven by the OUT bit in the CONTROL register. Requires an external pull-up resistor to VCC (typ. 10 k\u03a9); leave floating if unused. VOL = 0.40 V at IOL = 3.0 mA (VCC = 4.5 V)."+ },+ {+ "number": "8",+ "name": "VCC",+ "type": "power_in",+ "description": "Primary power supply, 1.8 V to 5.5 V. Typical timekeeping current 1.2 uA at 3.3 V; SRAM/RTCC register operating current is 300 uA (read) / 400 uA (write) at VCC = 5.5 V, SCL = 400 kHz. Power-fail switchover to VBAT occurs at VTRIP (1.3-1.7 V)."+ },+ {+ "number": "EP",+ "name": "EP",+ "type": "passive",+ "description": "Exposed thermal/mechanical pad on the underside of the TDFN package. May be connected to VSS or left floating (per the Note under Table 3-1). Connection to VSS is recommended for mechanical anchoring and improved thermal performance."+ }+ ],+ "provenance": {+ "extractor": "ds2sf",+ "datasheet": {+ "url": "https://datasheet.lcsc.com/datasheet/pdf/5093447976d64b9ab2cb1808413f6a3f.pdf",+ "pages": 56,+ "sha256": "4aafe310fbafe313",+ "source_tier": "mfr"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 9,+ "described": 9,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "metadata": {+ "specs": {+ "Manufacturer": "Microchip",+ "Package": "SOIC-8",+ "Category": "RTC",+ "Pins": "9"+ }+ },+ "sections": [+ "hero",+ "viewers",+ "readme",+ "breadcrumbs",+ "info"+ ],+ "discovery_triggers": [+ "mcp7940nt-i"+ ],+ "discovery_pitch": "MCP7940NT-I (Microchip) component page with datasheet-verified CAD.",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }, "dependencies": {}, "hero": { "type": "image",@@ -25,10 +144,5 @@ "docs/mcp7940nt-i-datasheet.pdf", "viewers/symbol.html", "viewers/footprint.html"- ],- "visibility": "public",- "author": {- "name": "Ray",- "email": "[email protected]"- }+ ] }