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ST25R3916B-AQET
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STMicroelectronics RFID ICs, UFQFPN-32(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+69@@ -0,0 +1,69 @@+# ST25R3916B-AQET++**STMicroelectronics** · RFID ICs · UFQFPN-32(5x5)++ST25R3916B-AQET from STMicroelectronics, in a UFQFPN-32(5x5). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | VDD_IO | power_in | Positive supply for peripheral communication. |+| 2 | TAD1 | output | Test output 2. |+| 3 | VDD_D | power_out | Digital supply regulator output. |+| 4 | XTO | output | Crystal oscillator output. |+| 5 | XTI | input | Crystal oscillator input, in test mode used as digital input (clock). |+| 6 | GND_D | power_in | Digital ground. |+| 7 | VDD_A | power_out | Analog supply regulator output. |+| 8 | VDD | power_in | External positive supply. |+| 9 | VDD_RF | power_out | Regulated driver supply for antenna drivers. |+| 10 | VDD_TX | power_in | External positive supply for the TX part. |+| 11 | VDD_AM | power_out | Regulated driver supply for AM modulation. |+| 12 | GND_DR1 | power_in | Antenna driver ground, including driver VSS. |+| 13 | RFO1 | output | Antenna driver output. |+| 14 | VDD_DR | power_in | Antenna driver positive supply input. |+| 15 | RFO2 | output | Antenna driver output. |+| 16 | GND_DR2 | power_in | Antenna driver ground, including driver VSS. |+| 17 | EXT_LM | output | External load modulation MOS gate driver. |+| 18 | AAT_A | output | AAT tune voltage for variable capacitor AAT_A. |+| 19 | AAT_B | output | AAT tune voltage for variable capacitor AAT_B. |+| 20 | I2C_EN | input | I2C interface enable. |+| 21 | VSS | power_in | Ground, die substrate potential. |+| 22 | RFI1 | input | Receiver input. |+| 23 | RFI2 | input | Receiver input. |+| 24 | AGDC | bidirectional | Analog reference voltage. |+| 25 | TAD2 | bidirectional | Test output 1. |+| 26 | GND_A | power_in | Analog ground. |+| 27 | IRQ | output | Interrupt request output. |+| 28 | MCU_CLK | output | Clock output for MCU. |+| 29 | BSS | input | SPI enable (active low). |+| 30 | SCLK | input | SPI clock / I2C clock. |+| 31 | MOSI | input | SPI data input. |+| 32 | MISO | tri_state | Serial peripheral interface data output / I2C data line. |+| 33 | Thermal_pad | power_in | Thermal pad (GND) for heat dissipation. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | UFQFPN-32(5x5) |+| Category | RF And Wireless |+| Pins | 33 |++## CAD (KiCad official)++- Symbol: `ST25R3916B-AQET`+- Footprint: `Package_DFN_QFN:UFQFPN-32-1EP_5x5mm_P0.5mm_EP3.5x3.5mm`+- 3D model: UFQFPN-32(5x5) (KiCad packages3D, STEP)+- 3D model files: `st25r3916b-aqet-etched.step` / `st25r3916b-aqet-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `st25r3916b-aqet.step` / `st25r3916b-aqet.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602787147115995136) (165 pp, sha256 `a54950349f10a713`, retrieved 2026-10-01, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/st25r3916b-aqet-datasheet.pdf)
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"st25r3916b-aqet.glb",+ "model_3d_step": "st25r3916b-aqet-etched.step",+ "model_3d_step_plain": "st25r3916b-aqet.step",+ "lbr": "st25r3916b-aqet.lbr"+ },+ "distributor_links": {+ "lcsc": "C17315217",+ "digikey": "497-ST25R3916B-AQET-ND",+ "mouser": "511-ST25R3916B-AQET"+ },+ "distributor_check": {+ "checked_at": "2026-10-01T18:39:50Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "497-ST25R3916B-AQET-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "511-ST25R3916B-AQET",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "VDD_IO",+ "type": "power_in",+ "description": "Positive supply for peripheral communication."+ },+ {+ "number": "2",+ "name": "TAD1",+ "type": "output",+ "description": "Test output 2."+ },+ {+ "number": "3",+ "name": "VDD_D",+ "type": "power_out",+ "description": "Digital supply regulator output."+ },+ {+ "number": "4",+ "name": "XTO",+ "type": "output",+ "description": "Crystal oscillator output."+ },+ {+ "number": "5",+ "name": "XTI",+ "type": "input",+ "description": "Crystal oscillator input, in test mode used as digital input (clock)."+ },+ {+ "number": "6",+ "name": "GND_D",+ "type": "power_in",+ "description": "Digital ground."+ },+ {+ "number": "7",+ "name": "VDD_A",+ "type": "power_out",+ "description": "Analog supply regulator output."+ },+ {+ "number": "8",+ "name": "VDD",+ "type": "power_in",+ "description": "External positive supply."+ },+ {+ "number": "9",+ "name": "VDD_RF",+ "type": "power_out",+ "description": "Regulated driver supply for antenna drivers."+ },+ {+ "number": "10",+ "name": "VDD_TX",+ "type": "power_in",+ "description": "External positive supply for the TX part."+ },+ {+ "number": "11",+ "name": "VDD_AM",+ "type": "power_out",+ "description": "Regulated driver supply for AM modulation."+ },+ {+ "number": "12",+ "name": "GND_DR1",+ "type": "power_in",+ "description": "Antenna driver ground, including driver VSS."+ },+ {+ "number": "13",+ "name": "RFO1",+ "type": "output",+ "description": "Antenna driver output."+ },+ {+ "number": "14",+ "name": "VDD_DR",+ "type": "power_in",+ "description": "Antenna driver positive supply input."+ },+ {+ "number": "15",+ "name": "RFO2",+ "type": "output",+ "description": "Antenna driver output."+ },+ {+ "number": "16",+ "name": "GND_DR2",+ "type": "power_in",+ "description": "Antenna driver ground, including driver VSS."+ },+ {+ "number": "17",+ "name": "EXT_LM",+ "type": "output",+ "description": "External load modulation MOS gate driver."+ },+ {+ "number": "18",+ "name": "AAT_A",+ "type": "output",+ "description": "AAT tune voltage for variable capacitor AAT_A."+ },+ {+ "number": "19",+ "name": "AAT_B",+ "type": "output",+ "description": "AAT tune voltage for variable capacitor AAT_B."+ },+ {+ "number": "20",+ "name": "I2C_EN",+ "type": "input",+ "description": "I2C interface enable."+ },+ {+ "number": "21",+ "name": "VSS",+ "type": "power_in",+ "description": "Ground, die substrate potential."+ },+ {+ "number": "22",+ "name": "RFI1",+ "type": "input",+ "description": "Receiver input."+ },+ {+ "number": "23",+ "name": "RFI2",+ "type": "input",+ "description": "Receiver input."+ },+ {+ "number": "24",+ "name": "AGDC",+ "type": "bidirectional",+ "description": "Analog reference voltage."+ },+ {+ "number": "25",+ "name": "TAD2",+ "type": "bidirectional",+ "description": "Test output 1."+ },+ {+ "number": "26",+ "name": "GND_A",+ "type": "power_in",+ "description": "Analog ground."+ },+ {+ "number": "27",+ "name": "IRQ",+ "type": "output",+ "description": "Interrupt request output."+ },+ {+ "number": "28",+ "name": "MCU_CLK",+ "type": "output",+ "description": "Clock output for MCU."+ },+ {+ "number": "29",+ "name": "BSS",+ "type": "input",+ "description": "SPI enable (active low)."+ },+ {+ "number": "30",+ "name": "SCLK",+ "type": "input",+ "description": "SPI clock / I2C clock."+ },+ {+ "number": "31",+ "name": "MOSI",+ "type": "input",+ "description": "SPI data input."+ },+ {+ "number": "32",+ "name": "MISO",+ "type": "tri_state",+ "description": "Serial peripheral interface data output / I2C data line."+ },+ {+ "number": "33",+ "name": "Thermal_pad",+ "type": "power_in",+ "description": "Thermal pad (GND) for heat dissipation."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [],+ "pages_sent": 29,+ "cost_usd": 0.2856,+ "at": "2026-10-01T18:39:46"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602787147115995136",+ "pages": 165,+ "sha256": "a54950349f10a713",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 33,+ "described": 33,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}