JSM900R

{
  "schema_version": 1,
  "type": "component",
  "slug": "jsm900r",
  "title": "JSM900R",
  "brief": "JSMSEMI RF Transceiver ICs, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "rf and wireless",
    "jsm900r",
    "factory-2.0.0",
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  "component": {
    "mpn": "JSM900R",
    "manufacturer": "JSMSEMI",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "RF And Wireless",
    "subcategory": "RF Transceiver ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588945022817882112",
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      "lbr": "jsm900r.lbr"
    },
    "distributor_links": {
      "lcsc": "C2857169"
    },
    "distributor_check": {
      "checked_at": "2026-10-16T06:25:49Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
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    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; the datasheet advises grounding the metal base through as many vias as possible to reduce parasitic inductance."
      },
      {
        "number": "2",
        "name": "ANT",
        "type": "input",
        "description": "RF signal input pin; the receiver specifies a saturated input level of -20 dBm with RSC = 50 Ω."
      },
      {
        "number": "3",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply pin rated DC 2.0-5.5 V in the pin table (normal operating range 2.0-5.0 V), with a 0.1 µF bypass capacitor placed close to the device and a 47 Ω series resistor on the RF supply recommended for 5 V use."
      },
      {
        "number": "4",
        "name": "NC",
        "type": "unconnected",
        "description": "Listed as NC (no connection) in the pin table with no function given."
      },
      {
        "number": "5",
        "name": "DO",
        "type": "output",
        "description": "Demodulated data signal output."
      },
      {
        "number": "6",
        "name": "SHUT",
        "type": "input",
        "description": "Operating mode select: connect to VDD for shutdown mode and to GND for operating mode."
      },
      {
        "number": "7",
        "name": "SQ",
        "type": "input",
        "description": "Squelch select: leave floating or connect to the supply to enable squelch (which reduces sensitivity by about 3 dB), and connect to GND to disable it."
      },
      {
        "number": "8",
        "name": "RO",
        "type": "input",
        "description": "External crystal connection (reference oscillator input); the datasheet also allows driving it with an external clock through a coupling capacitor at 0.3-0.7 V peak-to-peak."
      }
    ],
    "provenance": {
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        "guard_notes": [
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        "at": "2026-10-16T06:25:35"
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        "sha256": "1a5e74ae27fe65a0",
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
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  "metadata": {
    "specs": {
      "Manufacturer": "JSMSEMI",
      "Package": "SOP-8",
      "Category": "RF And Wireless",
      "Pins": "8"
    },
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          "name": "数据率 (data rate)",
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        {
          "name": "饱和输入电平 (saturation input level)",
          "symbol": "",
          "kind": "electrical",
          "unit": "dBm",
          "min": null,
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          "max": null,
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        {
          "name": "Spurious Reverse Isolation",
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          "kind": "electrical",
          "unit": "µVr/ms",
          "min": null,
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          "name": "Reference Oscillator Input Impedance",
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        {
          "name": "Reference Oscillator Source Current",
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          "name": "晶体振荡器频率 (crystal oscillator frequency)",
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