← Commit history
README.md+11−11
@@ -8,10 +8,10 @@ TAXM8M4RDBCCT2T from Yajingxin, in a SMD3225-4P. Pinout and pin descriptions ext  | Pin | Name | Type | Function | |---|---|---|---|-| 1 | XTAL1 | passive | Crystal terminal connected to one side of the 8.000000 MHz fundamental resonator (CL 10 pF ±10%, drive level 10 uW). |-| 2 | GND | power_in | Ground connection pad, labelled GND in the connection diagram. |-| 3 | XTAL2 | passive | Crystal terminal connected to the other side of the 8.000000 MHz fundamental resonator (CL 10 pF ±10%, drive level 10 uW). |-| 4 | GND | power_in | Ground connection pad, labelled GND in the connection diagram. |+| 1 | XTAL1 | passive | Crystal terminal (chamfered pad-1 corner) for the 8.000000 MHz fundamental-mode resonator, 10 pF load capacitance ±10%, drive level 10 uW. |+| 2 | GND | power_in | Ground connection (marked GND in the connection diagram), typically tied to the lid/case. |+| 3 | XTAL2 | passive | Second crystal terminal, diagonal to pin 1, of the 8.000000 MHz resonator with max equivalent resistance 250 Ω. |+| 4 | GND | power_in | Ground connection (marked GND in the connection diagram), typically tied to the lid/case. |  ## Key specifications @@ -29,17 +29,17 @@ Limits as printed in the datasheet (page.json `metadata.characteristics` carries | Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page | |---|---|---|---|---|---|---|---| | Frequency Tolerance at 25℃ (调整频差) |  | -10 |  | 10 | ppm | at 25℃ | 1 |-| Stability over operation temperature (温度频差) |  | -15 |  | 15 | ppm | over operating temperature range | 1 |+| Stability over operation temperature (温度频差) |  | -15 |  | 15 | ppm |  | 1 | | Aging (老化率) |  | -5 |  | 5 | ppm/year |  | 1 |-| Load Capacitance (CL) tolerance (负载电容) | CL | -10 |  | 10 | % | nominal 10 pF | 1 |+| Operating Temperature Range (工作温度范围) |  | -40 |  | 85 | ℃ |  | 1 |+| Storage Temperature Range (储存温度范围) |  | -40 |  | 125 | ℃ |  | 1 | | Shunt Capacitance (Co) (静态电容) | Co | 0 |  | 7 | pF |  | 1 |+| Insulation Resistance (绝缘电阻) |  | 500 |  |  | MΩ | at DC 100V | 1 | | Equivalent Resistance (谐振电阻) |  |  |  | 250 | Ω |  | 1 | | Drive Level (激励功率) |  |  |  | 10 | uw |  | 1 |-| Insulation Resistance (绝缘电阻) |  | 500 |  |  | MΩ | at DC 100V | 1 |-| Operating Temperature Range (工作温度范围) |  | -40 |  | 85 | ℃ |  | 1 |-| Storage Temperature Range (储存温度范围) |  | -40 |  | 125 | ℃ |  | 1 |-| Nominal Frequency (标称频率) | f |  | 8 |  | MHZ | mode FUND | 1 |-| Load Capacitance (CL) nominal (负载电容) | CL |  | 10 |  | pF |  | 1 |+| Load Capacitance (CL) tolerance (负载电容) |  | -10 |  | 10 | % |  | 1 |+| Frequency (标称频率) |  |  | 8 |  | MHZ |  | 1 |+| Load Capacitance (CL) (负载电容) | CL |  | 10 |  | pF |  | 1 |  ## CAD (KiCad official) 
package.json+7−7
@@ -1,6 +1,6 @@ {   "slug": "taxm8m4rdbcct2t",-  "version": "0.1.0",+  "version": "0.1.1",   "type": "component",   "description": "Yajingxin Crystals, SMD3225-4P. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.",   "tags": [@@ -52,7 +52,7 @@       "lcsc": "C400090"     },     "distributor_check": {-      "checked_at": "2026-10-21T18:10:07Z",+      "checked_at": "2026-10-21T18:53:09Z",       "source": "Component Ocean /api/assign-pns",       "digikey": {         "pn": null,@@ -68,25 +68,25 @@         "number": "1",         "name": "XTAL1",         "type": "passive",-        "description": "Crystal terminal connected to one side of the 8.000000 MHz fundamental resonator (CL 10 pF ±10%, drive level 10 uW)."+        "description": "Crystal terminal (chamfered pad-1 corner) for the 8.000000 MHz fundamental-mode resonator, 10 pF load capacitance ±10%, drive level 10 uW."       },       {         "number": "2",         "name": "GND",         "type": "power_in",-        "description": "Ground connection pad, labelled GND in the connection diagram."+        "description": "Ground connection (marked GND in the connection diagram), typically tied to the lid/case."       },       {         "number": "3",         "name": "XTAL2",         "type": "passive",-        "description": "Crystal terminal connected to the other side of the 8.000000 MHz fundamental resonator (CL 10 pF ±10%, drive level 10 uW)."+        "description": "Second crystal terminal, diagonal to pin 1, of the 8.000000 MHz resonator with max equivalent resistance 250 Ω."       },       {         "number": "4",         "name": "GND",         "type": "power_in",-        "description": "Ground connection pad, labelled GND in the connection diagram."+        "description": "Ground connection (marked GND in the connection diagram), typically tied to the lid/case."       }     ],     "provenance": {@@ -144,7 +144,7 @@         "zmin_mm": 0.0,         "centre_offset_mm": 0.001,         "footprint_binding": "identity",-        "sha256": "c12499ada4f10db4ef33c354f3a467300ab70fe72a2f4f22d68814735f7f666a",+        "sha256": "ebf2e82e18aafcec072f8c71d145be1f92f0e2fc312d6ce86e4a0ec32f2f9f87",         "checked": "2026-10-21",         "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"       }
page.json+10−10
@@ -4,7 +4,7 @@   "slug": "taxm8m4rdbcct2t",   "title": "TAXM8M4RDBCCT2T",   "brief": "Yajingxin Crystals, SMD3225-4P. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.",-  "version": "0.1.0",+  "version": "0.1.1",   "license": "CC-BY-SA-4.0",   "tags": [     "component",@@ -34,7 +34,7 @@       "lcsc": "C400090"     },     "distributor_check": {-      "checked_at": "2026-10-21T18:10:07Z",+      "checked_at": "2026-10-21T18:53:09Z",       "source": "Component Ocean /api/assign-pns",       "digikey": {         "pn": null,@@ -50,25 +50,25 @@         "number": "1",         "name": "XTAL1",         "type": "passive",-        "description": "Crystal terminal connected to one side of the 8.000000 MHz fundamental resonator (CL 10 pF ±10%, drive level 10 uW)."+        "description": "Crystal terminal (chamfered pad-1 corner) for the 8.000000 MHz fundamental-mode resonator, 10 pF load capacitance ±10%, drive level 10 uW."       },       {         "number": "2",         "name": "GND",         "type": "power_in",-        "description": "Ground connection pad, labelled GND in the connection diagram."+        "description": "Ground connection (marked GND in the connection diagram), typically tied to the lid/case."       },       {         "number": "3",         "name": "XTAL2",         "type": "passive",-        "description": "Crystal terminal connected to the other side of the 8.000000 MHz fundamental resonator (CL 10 pF ±10%, drive level 10 uW)."+        "description": "Second crystal terminal, diagonal to pin 1, of the 8.000000 MHz resonator with max equivalent resistance 250 Ω."       },       {         "number": "4",         "name": "GND",         "type": "power_in",-        "description": "Ground connection pad, labelled GND in the connection diagram."+        "description": "Ground connection (marked GND in the connection diagram), typically tied to the lid/case."       }     ],     "provenance": {@@ -126,7 +126,7 @@         "zmin_mm": 0,         "centre_offset_mm": 0.001,         "footprint_binding": "identity",-        "sha256": "c12499ada4f10db4ef33c354f3a467300ab70fe72a2f4f22d68814735f7f666a",+        "sha256": "ebf2e82e18aafcec072f8c71d145be1f92f0e2fc312d6ce86e4a0ec32f2f9f87",         "checked": "2026-10-21",         "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"       }@@ -328,7 +328,7 @@     "taxm8m4rdbcct2t-hero.overlay.json",     "taxm8m4rdbcct2t-etched.glb"   ],-  "visibility": {-    "public": true-  }+  "visibility": "public",+  "description": "Yajingxin Crystals, SMD3225-4P. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.",+  "org": "adom" }\ No newline at end of file
taxm8m4rdbcct2t-hero.overlay.json+174−172
@@ -1,177 +1,179 @@ {-  "spec": "adom-hero 1.4",-  "mpn": "TAXM8M4RDBCCT2T",-  "kind": "component + footprint reference art",-  "board_use": false,-  "plane_z_mm": -0.02,-  "units": "metre",-  "upAxis": "Z",-  "layers": {-    "pad_outlines": {-      "material": "Footprint pads - teal dashed outlines - 50 percent opacity",-      "rgba": [-        0.0,-        0.902,-        0.863,-        0.5-      ],-      "pads": 4,-      "span_mm": 3.6,-      "dash_mm": 0.12,-      "gap_mm": 0.072,-      "pad_stroke_mm": 0.03-    },-    "silkscreen": {-      "material": "Silkscreen reference lines - 30 percent opacity",-      "rgba": [-        0.92,-        0.96,-        1.0,-        0.3-      ],-      "footprint_items": 2,-      "pin1": {-        "source": "added dot (AI)",-        "pad": "1",-        "center_mm": [-          -1.1,-          1.914-        ],-        "r_mm": 0.264-      }-    },-    "signal_names": {-      "material": "Signal names - 50 percent opacity",-      "rgba": [-        0.92,-        0.96,-        1.0,-        0.5-      ],-      "font": "DejaVu Sans Mono",-      "labels": 4,-      "sides": "top + mirrored underside (single-sided)",-      "fallback_to_pad_number": 0-    }+ "spec": "adom-hero 1.4",+ "mpn": "TAXM8M4RDBCCT2T",+ "kind": "component + footprint reference art",+ "board_use": false,+ "plane_z_mm": -0.02,+ "units": "metre",+ "upAxis": "Z",+ "layers": {+  "pad_outlines": {+   "material": "Footprint pads - teal dashed outlines - 50 percent opacity",+   "rgba": [+    0.0,+    0.902,+    0.863,+    0.5+   ],+   "pads": 4,+   "span_mm": 3.6,+   "dash_mm": 0.12,+   "gap_mm": 0.072,+   "pad_stroke_mm": 0.03   },-  "align": {-    "ok": true,-    "centre_offset_mm": 0.001,-    "tolerance_mm": 0.288,-    "orientation_flipped": false,-    "contacts_bbox_mm": [-      -1.599,-      1.601,-      -1.251,-      1.25+  "silkscreen": {+   "material": "Silkscreen reference lines - 30 percent opacity",+   "rgba": [+    0.92,+    0.96,+    1.0,+    0.3+   ],+   "footprint_items": 2,+   "pin1": {+    "source": "added dot (AI)",+    "pad": "1",+    "center_mm": [+     -1.1,+     1.914     ],-    "pads_bbox_mm": [-      -1.8,-      1.8,-      -1.45,-      1.45-    ],-    "seating_z_mm": 0.0-  },-  "sources": {-    "glb": "taxm8m4rdbcct2t-etched.glb",-    "glb_sha256": "00e1a7b17b6838437587525146d3a7a04ee78a121132cb8b5e49d2aefbde5a1f",-    "footprint": "taxm8m4rdbcct2t.kicad_mod",-    "footprint_sha256": "bc3f131b1e853a3f7127c1eb2e3858221edde23a3d7ff678f7261da779ee39f7",-    "pins": "page.json component.pins",-    "pins_sha256": "4a770a6e6341262e1358fd366826d9c2fed78f775d92b5f13bd9048e687e6022"+    "r_mm": 0.264+   }   },-  "generator": "adom-wiki 1.7.76 (component_hero)",-  "labels": [-    {-      "pad": "1",-      "text": "XTAL1",-      "x": -1.95,-      "y": 0.85,-      "align": "right",-      "vertical": false,-      "h": 0.6-    },-    {-      "pad": "2",-      "text": "GND",-      "x": 1.95,-      "y": 0.85,-      "align": "left",-      "vertical": false,-      "h": 0.6-    },-    {-      "pad": "3",-      "text": "XTAL2",-      "x": 1.95,-      "y": -0.85,-      "align": "left",-      "vertical": false,-      "h": 0.6-    },-    {-      "pad": "4",-      "text": "GND",-      "x": -1.95,-      "y": -0.85,-      "align": "right",-      "vertical": false,-      "h": 0.6-    }+  "signal_names": {+   "material": "Signal names - 50 percent opacity",+   "rgba": [+    0.92,+    0.96,+    1.0,+    0.5+   ],+   "font": "DejaVu Sans Mono",+   "labels": 4,+   "sides": "top + mirrored underside (single-sided)",+   "omitted": null,+   "fallback_to_pad_number": 0+  }+ },+ "align": {+  "ok": true,+  "centre_offset_mm": 0.001,+  "over_pads": true,+  "tolerance_mm": 0.288,+  "orientation_flipped": false,+  "contacts_bbox_mm": [+   -1.599,+   1.601,+   -1.251,+   1.25+  ],+  "pads_bbox_mm": [+   -1.8,+   1.8,+   -1.45,+   1.45   ],-  "pads": [-    {-      "number": "1",-      "shape": "roundrect",-      "center_mm": [-        -1.1,-        0.85-      ],-      "size_mm": [-        1.4,-        1.2-      ],-      "rot": 0.0-    },-    {-      "number": "2",-      "shape": "roundrect",-      "center_mm": [-        1.1,-        0.85-      ],-      "size_mm": [-        1.4,-        1.2-      ],-      "rot": 0.0-    },-    {-      "number": "3",-      "shape": "roundrect",-      "center_mm": [-        1.1,-        -0.85-      ],-      "size_mm": [-        1.4,-        1.2-      ],-      "rot": 0.0-    },-    {-      "number": "4",-      "shape": "roundrect",-      "center_mm": [-        -1.1,-        -0.85-      ],-      "size_mm": [-        1.4,-        1.2-      ],-      "rot": 0.0-    }-  ]-}+  "seating_z_mm": 0.0+ },+ "sources": {+  "glb": "taxm8m4rdbcct2t-etched.glb",+  "glb_sha256": "00e1a7b17b6838437587525146d3a7a04ee78a121132cb8b5e49d2aefbde5a1f",+  "footprint": "taxm8m4rdbcct2t.kicad_mod",+  "footprint_sha256": "bc3f131b1e853a3f7127c1eb2e3858221edde23a3d7ff678f7261da779ee39f7",+  "pins": "page.json component.pins",+  "pins_sha256": "4a770a6e6341262e1358fd366826d9c2fed78f775d92b5f13bd9048e687e6022"+ },+ "generator": "factory/hero_glb.py",+ "labels": [+  {+   "pad": "1",+   "text": "XTAL1",+   "x": -1.95,+   "y": 0.85,+   "align": "right",+   "vertical": false,+   "h": 0.6+  },+  {+   "pad": "2",+   "text": "GND",+   "x": 1.95,+   "y": 0.85,+   "align": "left",+   "vertical": false,+   "h": 0.6+  },+  {+   "pad": "3",+   "text": "XTAL2",+   "x": 1.95,+   "y": -0.85,+   "align": "left",+   "vertical": false,+   "h": 0.6+  },+  {+   "pad": "4",+   "text": "GND",+   "x": -1.95,+   "y": -0.85,+   "align": "right",+   "vertical": false,+   "h": 0.6+  }+ ],+ "pads": [+  {+   "number": "1",+   "shape": "roundrect",+   "center_mm": [+    -1.1,+    0.85+   ],+   "size_mm": [+    1.4,+    1.2+   ],+   "rot": 0.0+  },+  {+   "number": "2",+   "shape": "roundrect",+   "center_mm": [+    1.1,+    0.85+   ],+   "size_mm": [+    1.4,+    1.2+   ],+   "rot": 0.0+  },+  {+   "number": "3",+   "shape": "roundrect",+   "center_mm": [+    1.1,+    -0.85+   ],+   "size_mm": [+    1.4,+    1.2+   ],+   "rot": 0.0+  },+  {+   "number": "4",+   "shape": "roundrect",+   "center_mm": [+    -1.1,+    -0.85+   ],+   "size_mm": [+    1.4,+    1.2+   ],+   "rot": 0.0+  }+ ]+}\ No newline at end of file
taxm8m4rdbcct2t.lbr+12−3
@@ -50,7 +50,7 @@ <layer number="98" name="Guide" color="6" fill="1" visible="yes" active="yes"/> </layers> <library>-<description></description>+<description>Yajingxin Crystals, SMD3225-4P. Pinout reviewed by a person against the datasheet</description> <packages> <package name="Crystal_SMD_3225-4Pin_3.2x2.5mm">   <description>Crystal, 3.2 x 2.5 mm. SMD3225/4, Crystal, 3.2x2.5mm package, SMD</description>@@ -73,6 +73,7 @@ </packages> <symbols> <symbol name="TAXM8M4RDBCCT2T">+  <description>Yajingxin Crystals, SMD3225-4P. Pinout reviewed by a person against the datasheet</description>   <wire x1="-12.7" y1="2.54" x2="12.7" y2="2.54" width="0.254" layer="94"/>   <wire x1="12.7" y1="2.54" x2="12.7" y2="-5.08" width="0.254" layer="94"/>   <wire x1="12.7" y1="-5.08" x2="-12.7" y2="-5.08" width="0.254" layer="94"/>@@ -87,7 +88,7 @@ </symbols> <devicesets> <deviceset name="TAXM8M4RDBCCT2T" prefix="U">-  <description></description>+  <description>Yajingxin Crystals, SMD3225-4P. Pinout reviewed by a person against the datasheet</description>   <gates>     <gate name="G$1" symbol="TAXM8M4RDBCCT2T" x="0" y="0"/>   </gates>@@ -99,7 +100,15 @@         <connect gate="G$1" pin="GND@2" pad="4"/>         <connect gate="G$1" pin="XTAL2" pad="3"/>       </connects>-      <technologies><technology name=""/></technologies>+      <technologies>+        <technology name="">+          <attribute name="MPN" value="TAXM8M4RDBCCT2T" constant="no"/>+          <attribute name="MANUFACTURER" value="Yajingxin" constant="no"/>+          <attribute name="DATASHEET" value="https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884388134195200" constant="no"/>+          <attribute name="ADOM_WIKI" value="https://wiki.adom.inc/adom/taxm8m4rdbcct2t" constant="no"/>+          <attribute name="LCSC_PN" value="C400090" constant="no"/>+        </technology>+      </technologies>     </device>   </devices> </deviceset>