component
MS520
Public Made by Adomby adom
Hangzhou Ruimeng Tech RFID ICs, VQFN-32-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "ms520",
"title": "MS520",
"brief": "Hangzhou Ruimeng Tech RFID ICs, VQFN-32-EP(5x5). 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",
"ms520",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "MS520",
"manufacturer": "Hangzhou Ruimeng Tech",
"package": "VQFN-32-EP(5x5)",
"pin_count": 33,
"category": "RF And Wireless",
"subcategory": "RFID ICs",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588881930511396864",
"parts": {
"symbol": "ms520.kicad_sym",
"footprint": "ms520.kicad_mod",
"model_3d": "ms520-hero.glb",
"model_3d_plain": "ms520-etched.glb",
"model_3d_step": "ms520-etched.step",
"model_3d_step_plain": "ms520.step",
"lbr": "ms520.lbr"
},
"distributor_links": {
"lcsc": "C190879"
},
"distributor_check": {
"checked_at": "2026-10-18T02:51:41Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "N.C.",
"type": "unconnected",
"description": "Not connected (datasheet pin type I, marked not connected)."
},
{
"number": "2",
"name": "PVDD",
"type": "power_in",
"description": "Pin supply; VDD(PVDD) is specified at 1.6 V to 3.6 V (1.8 V typical) and must be equal to or lower than VDDD."
},
{
"number": "3",
"name": "DVDD",
"type": "power_in",
"description": "Digital supply; VDDD is specified at 2.5 V to 3.6 V (3.3 V typical) and must equal VDDA and VDD(TVDD)."
},
{
"number": "4",
"name": "DVSS",
"type": "power_in",
"description": "Digital ground; the exposed die pad under the package is optional and may be connected to this pin."
},
{
"number": "5",
"name": "PVSS",
"type": "power_in",
"description": "Pin supply ground."
},
{
"number": "6",
"name": "NRSTPD",
"type": "input",
"description": "Reset and power-down input: low level enables hard power-down (cuts internal current, stops the oscillator and disconnects input pins), and a rising edge enables reset."
},
{
"number": "7",
"name": "TIN",
"type": "input",
"description": "Test signal input, also used as the active-antenna receive input when TIN/TOUT interface is used; must be tied to SVDD or PVSS when unused."
},
{
"number": "8",
"name": "TOUT",
"type": "output",
"description": "Test signal output, used for test and for driving an active antenna circuit via the TOUT interface."
},
{
"number": "9",
"name": "SVDD",
"type": "power_in",
"description": "Supply for the TIN and TOUT pins; specified at 1.6 V to 3.6 V and must be connected to DVDD, PVDD or another supply pin when unused."
},
{
"number": "10",
"name": "TVSS",
"type": "power_in",
"description": "Ground of the TX1 transmitter output stage."
},
{
"number": "11",
"name": "TX1",
"type": "output",
"description": "Transmitter 1 output delivering the 13.56 MHz energy carrier modulated by the transmit envelope; drives the antenna through passive matching and filtering."
},
{
"number": "12",
"name": "TVDD",
"type": "power_in",
"description": "Transmitter supply powering the TX1 and TX2 output stages; specified at 2.5 V to 3.6 V."
},
{
"number": "13",
"name": "TX2",
"type": "output",
"description": "Transmitter 2 output delivering the 13.56 MHz energy carrier modulated by the transmit envelope."
},
{
"number": "14",
"name": "TVSS",
"type": "power_in",
"description": "Ground of the TX2 transmitter output stage."
},
{
"number": "15",
"name": "AVDD",
"type": "power_in",
"description": "Analog supply; VDDA is specified at 2.5 V to 3.6 V (3.3 V typical) and must equal VDDD and VDD(TVDD)."
},
{
"number": "16",
"name": "VMID",
"type": "passive",
"description": "Internal reference voltage node (datasheet type P); no electrical limit is stated for it in the text."
},
{
"number": "17",
"name": "RX",
"type": "input",
"description": "RF signal input; the pin voltage is clamped by internal diodes to AVSS and AVDD, with input voltage range -1 V to VDDA +1 V."
},
{
"number": "18",
"name": "AVSS",
"type": "power_in",
"description": "Analog ground."
},
{
"number": "19",
"name": "AUX1",
"type": "output",
"description": "Auxiliary output for test signals; DAC outputs are current sources, so a 510 Ω pull-down resistor is recommended."
},
{
"number": "20",
"name": "AUX2",
"type": "output",
"description": "Auxiliary output for test signals; DAC outputs are current sources, so a 510 Ω pull-down resistor is recommended."
},
{
"number": "21",
"name": "OSCIN",
"type": "input",
"description": "Inverting input of the crystal oscillator amplifier, also the input for an external clock (27.12 MHz, 40-60 % duty cycle)."
},
{
"number": "22",
"name": "OSCOUT",
"type": "output",
"description": "Inverting output of the crystal oscillator amplifier for a 27.12 MHz crystal."
},
{
"number": "23",
"name": "IRQ",
"type": "output",
"description": "Interrupt request output indicating an interrupt event; can be configured as push-pull or open-drain."
},
{
"number": "24",
"name": "NSS",
"type": "input",
"description": "SPI slave select input."
},
{
"number": "25",
"name": "D1",
"type": "bidirectional",
"description": "Test port D1 (I/O), usable only as an output when the test pin output driver is enabled; limited to D1-D4 when SPI is used."
},
{
"number": "26",
"name": "D2",
"type": "bidirectional",
"description": "Test port D2 (I/O)."
},
{
"number": "27",
"name": "D3",
"type": "bidirectional",
"description": "Test port D3 (I/O)."
},
{
"number": "28",
"name": "D4",
"type": "bidirectional",
"description": "Test port D4 (I/O)."
},
{
"number": "29",
"name": "SCK",
"type": "bidirectional",
"description": "Multiplexed pin: test port D5 (I/O) and SPI serial clock input SCK, which must be generated by the host."
},
{
"number": "30",
"name": "MOSI",
"type": "bidirectional",
"description": "Multiplexed pin: test port D6 (I/O) and SPI master-out/slave-in MOSI (I/O)."
},
{
"number": "31",
"name": "MISO",
"type": "bidirectional",
"description": "Multiplexed pin: test port D7 (I/O) and SPI master-in/slave-out MISO (I/O)."
},
{
"number": "32",
"name": "N.C.",
"type": "unconnected",
"description": "Not connected (datasheet pin type I, marked not connected)."
},
{
"number": "33",
"name": "EP",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-haiku-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The requested package 'VQFN-32-EP(5x5)' is not named in the text. The datasheet's product table list; The exposed thermal pad under the package is mentioned (footnote [3], optional connection to DVSS) b; Pin 29, 30 and 31 are multiplexed in the datasheet (D5/SCK, D6/MOSI, D7/MISO). They are listed once ",
"exposed pad 33 added from the footprint"
],
"pages_sent": 53,
"cost_usd": 0.2162,
"at": "2026-10-18T02:49:45"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588881930511396864",
"pages": 62,
"sha256": "7870c75ac44eea56",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 33,
"described": 33,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
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"footprint": "viewers/footprint.html"
},
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"role": "plain",
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"zmin_mm": 0,
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"footprint_binding": "identity",
"sha256": "5fa713ea46b36980895812ed853577889b7cb06d275041a39b99bc0be305dc79",
"checked": "2026-10-18",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "ms520-etched.step",
"role": "eda",
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"units": "mm",
"origin": "footprint origin = pad-pattern centre",
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"sha256": "5e263033dedcb92aedd3d21c233b76d786617ff30f7e09feb74a8ea7393ef723",
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}
]
},
"metadata": {
"specs": {
"Manufacturer": "Hangzhou Ruimeng Tech",
"Package": "VQFN-32-EP(5x5)",
"Category": "RF And Wireless",
"Pins": "33"
},
"characteristics": {
"version": 1,
"source": "datasheet",
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"rows": [
{
"name": "Analog supply voltage (absolute maximum)",
"symbol": "VDDA",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.5,
"typ": null,
"max": 4,
"conditions": "",
"source_page": 47,
"source": "datasheet"
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{
"name": "Digital supply voltage (absolute maximum)",
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"source_page": 47,
"source": "datasheet"
},
{
"name": "PVDD supply voltage (absolute maximum)",
"symbol": "VDD(PVDD)",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.5,
"typ": null,
"max": 4,
"conditions": "",
"source_page": 47,
"source": "datasheet"
},
{
"name": "TVDD supply voltage (absolute maximum)",
"symbol": "VDD(TVDD)",
"kind": "absolute_maximum",
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"typ": null,
"max": 4,
"conditions": "",
"source_page": 47,
"source": "datasheet"
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{
"name": "SVDD supply voltage (absolute maximum)",
"symbol": "VDD(SVDD)",
"kind": "absolute_maximum",
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"min": -0.5,
"typ": null,
"max": 4,
"conditions": "",
"source_page": 47,
"source": "datasheet"
},
{
"name": "Junction temperature",
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"unit": "℃",
"min": null,
"typ": null,
"max": 100,
"conditions": "",
"source_page": 47,
"source": "datasheet"
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{
"name": "ESD voltage HBM",
"symbol": "VESD",
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"unit": "V",
"min": null,
"typ": null,
"max": 2000,
"conditions": "HBM；150Ω；100pF；JESD22-A144-B",
"source_page": 47,
"source": "datasheet"
},
{
"name": "ESD voltage MM",
"symbol": "VESD",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 200,
"conditions": "MM；0.75μH；200pF；JESD22-A144-A",
"source_page": 47,
"source": "datasheet"
},
{
"name": "Analog supply voltage (recommended)",
"symbol": "VDDA",
"kind": "recommended_operating",
"unit": "V",
"min": 2.5,
"typ": 3.3,
"max": 3.6,
"conditions": "VDD(PVDD)≤VDDA=VDDD=VDD(TVDD); VSSA =VSSD =VSS(PVSS) =VSS(TVSS) =0V",
"source_page": 48,
"source": "datasheet"
},
{
"name": "Digital supply voltage (recommended)",
"symbol": "VDDD",
"kind": "recommended_operating",
"unit": "V",
"min": 2.5,
"typ": 3.3,
"max": 3.6,
"conditions": "VDD(PVDD)≤VDDA=VDDD=VDD(TVDD); VSSA =VSSD =VSS(PVSS) =VSS(TVSS) =0V",
"source_page": 48,
"source": "datasheet"
},
{
"name": "TVDD supply voltage (recommended)",
"symbol": "VDD(TVDD)",
"kind": "recommended_operating",
"unit": "V",
"min": 2.5,
"typ": 3.3,
"max": 3.6,
"conditions": "VDD(PVDD)≤VDDA=VDDD=VDD(TVDD); VSSA =VSSD =VSS(PVSS) =VSS(TVSS) =0V",
"source_page": 48,
"source": "datasheet"
},
{
"name": "PVDD supply voltage (recommended)",
"symbol": "VDD(PVDD)",
"kind": "recommended_operating",
"unit": "V",
"min": 1.6,
"typ": 1.8,
"max": 3.6,
"conditions": "VDD(PVDD)≤VDDA=VDDD=VDD(TVDD); VSSA =VSSD =VSS(PVSS) =VSS(TVSS) =0V",
"source_page": 48,
"source": "datasheet"
},
{
"name": "SVDD supply voltage (recommended)",
"symbol": "VDD(SVDD)",
"kind": "recommended_operating",
"unit": "V",
"min": 1.6,
"typ": null,
"max": 3.6,
"conditions": "VSSA =VSSD =VSS(PVSS) =VSS(TVSS) =0V",
"source_page": 48,
"source": "datasheet"
},
{
"name": "Ambient temperature (QFN32)",
"symbol": "Tamb",
"kind": "recommended_operating",
"unit": "℃",
"min": -25,
"typ": null,
"max": 85,
"conditions": "QFN32",
"source_page": 48,
"source": "datasheet"
},
{
"name": "NRSTPD input leakage current",
"symbol": "ILI",
"kind": "electrical",
"unit": "μA",
"min": -1,
"typ": null,
"max": 1,
"conditions": "",
"source_page": 49,
"source": "datasheet"
},
{
"name": "TIN input leakage current",
"symbol": "ILI",
"kind": "electrical",
"unit": "μA",
"min": -1,
"typ": null,
"max": 1,
"conditions": "",
"source_page": 49,
"source": "datasheet"
},
{
"name": "RX input voltage",
"symbol": "Vi",
"kind": "electrical",
"unit": "V",
"min": -1,
"typ": null,
"max": null,
"conditions": "",
"source_page": 49,
"source": "datasheet"
},
{
"name": "OSCIN input leakage current",
"symbol": "ILI",
"kind": "electrical",
"unit": "μA",
"min": -1,
"typ": null,
"max": 1,
"conditions": "",
"source_page": 49,
"source": "datasheet"
},
{
"name": "D1-D7 input leakage current",
"symbol": "ILI",
"kind": "electrical",
"unit": "μA",
"min": -1,
"typ": null,
"max": 1,
"conditions": "",
"source_page": 49,
"source": "datasheet"
},
{
"name": "D1-D7 output current high",
"symbol": "IOH",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": null,
"max": 4,
"conditions": "VDD(PVDD)= 3V",
"source_page": 49,
"source": "datasheet"
},
{
"name": "D1-D7 output current low",
"symbol": "IOL",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": null,
"max": 4,
"conditions": "VDD(PVDD)= 3V",
"source_page": 49,
"source": "datasheet"
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{
"name": "TOUT output current high",
"symbol": "IOH",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": null,
"max": 4,
"conditions": "VDD(PVDD)= 3V",
"source_page": 50,
"source": "datasheet"
},
{
"name": "TOUT output current low",
"symbol": "IOL",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": null,
"max": 4,
"conditions": "VDD(PVDD)= 3V",
"source_page": 50,
"source": "datasheet"
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{
"name": "IRQ output current high",
"symbol": "IOH",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": null,
"max": 4,
"conditions": "VDD(PVDD)= 3V",
"source_page": 50,
"source": "datasheet"
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{
"name": "IRQ output current low",
"symbol": "IOL",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": null,
"max": 4,
"conditions": "VDD(PVDD)= 3V",
"source_page": 50,
"source": "datasheet"
},
{
"name": "AUX1 and AUX2 output current high",
"symbol": "IOH",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": null,
"max": 4,
"conditions": "VDD(PVDD)= 3V",
"source_page": 50,
"source": "datasheet"
},
{
"name": "AUX1 and AUX2 output current low",
"symbol": "IOL",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": null,
"max": 4,
"conditions": "VDD(PVDD)= 3V",
"source_page": 50,
"source": "datasheet"
},
{
"name": "TX1 and TX2 output voltage low",
"symbol": "VOL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.15,
"conditions": "VDD(TVDD)=3V; IDD(TVDD)=32mA; CWGsP[5:0]=0Fh",
"source_page": 50,
"source": "datasheet"
},
{
"name": "TX1 and TX2 output voltage low",
"symbol": "VOL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.4,
"conditions": "VDD(TVDD)=3V; IDD(TVDD)=80mA; CWGsP[5:0]=0Fh",
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"source": "datasheet"
},
{
"name": "TX1 and TX2 output voltage low",
"symbol": "VOL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.24,
"conditions": "VDD(TVDD)=2.5V; IDD(TVDD)=32mA; CWGsP[5:0]=0Fh",
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"source": "datasheet"
},
{
"name": "TX1 and TX2 output voltage low",
"symbol": "VOL",
"kind": "electrical",
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"max": 0.64,
"conditions": "VDD(TVDD)=2.5V; IDD(TVDD)=80mA; CWGsP[5:0]=0Fh",
"source_page": 50,
"source": "datasheet"
},
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