component
EFM8LB12F32E-C-QFP32
Public Made by Adomby adom
SILICON LABS Pre-ordered MCUs, VQFN-32-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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"title": "EFM8LB12F32E-C-QFP32",
"brief": "SILICON LABS Pre-ordered MCUs, VQFN-32-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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"mpn": "EFM8LB12F32E-C-QFP32",
"manufacturer": "SILICON LABS",
"package": "VQFN-32-EP(4x4)",
"pin_count": 33,
"category": "Embedded Processors & Controllers",
"subcategory": "Pre-ordered MCUs",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/0fe5101814c8c0abfa6efc96b2aee57c.pdf",
"parts": {
"symbol": "efm8lb12f32e-c-qfp32.kicad_sym",
"footprint": "efm8lb12f32e-c-qfp32.kicad_mod",
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"lbr": "efm8lb12f32e-c-qfp32.lbr"
},
"distributor_links": {
"lcsc": "C1340845",
"digikey": "EFM8LB12F32E-C-QFP32-ND",
"mouser": "634-LB12F32ECQFP32"
},
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"checked_at": "2026-10-28T16:07:53Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
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"status": "found"
},
"mouser": {
"pn": "634-LB12F32ECQFP32",
"status": "found"
}
},
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{
"number": "1",
"name": "P0.0",
"type": "bidirectional",
"description": "Multifunction I/O pin with crossbar capability that also carries the VREF analog function."
},
{
"number": "2",
"name": "GND",
"type": "power_in",
"description": "Ground supply pin."
},
{
"number": "3",
"name": "VIO",
"type": "power_in",
"description": "I/O supply power input from which the external port I/O pins are powered."
},
{
"number": "4",
"name": "VDD",
"type": "power_in",
"description": "Supply power input for internal circuitry; device operation is specified from 2.2 V up to 3.6 V."
},
{
"number": "5",
"name": "RSTb / C2CK",
"type": "input",
"description": "Active-low reset input that doubles as the C2 debug clock."
},
{
"number": "6",
"name": "P3.7 / C2D",
"type": "bidirectional",
"description": "Multifunction I/O pin that is also the C2 debug data signal."
},
{
"number": "7",
"name": "P3.3",
"type": "bidirectional",
"description": "Multifunction I/O pin with DAC3 analog output function."
},
{
"number": "8",
"name": "P3.2",
"type": "bidirectional",
"description": "Multifunction I/O pin with DAC2 analog output function."
},
{
"number": "9",
"name": "P3.1",
"type": "bidirectional",
"description": "Multifunction I/O pin with DAC1 analog output function."
},
{
"number": "10",
"name": "P3.0",
"type": "bidirectional",
"description": "Multifunction I/O pin with DAC0 analog output function."
},
{
"number": "11",
"name": "P2.6",
"type": "bidirectional",
"description": "Multifunction I/O pin with ADC0 input 19 and comparator 1 inputs."
},
{
"number": "12",
"name": "P2.5",
"type": "bidirectional",
"description": "Multifunction I/O pin with CLU3 output and ADC0 input 18."
},
{
"number": "13",
"name": "P2.4",
"type": "bidirectional",
"description": "Multifunction I/O pin with ADC0 input 17 and comparator 1 inputs."
},
{
"number": "14",
"name": "P2.3",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O pin with ADC0 input 16 and comparator 1 inputs."
},
{
"number": "15",
"name": "P2.2",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O pin with CLU2 output and ADC0 input 15."
},
{
"number": "16",
"name": "P2.1",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O pin with I2C0 SCL and ADC0 input 14."
},
{
"number": "17",
"name": "P2.0",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O pin with I2C0 SDA and comparator 1 inputs."
},
{
"number": "18",
"name": "P1.7",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O pin with ADC0 input 13 and comparator 0 inputs."
},
{
"number": "19",
"name": "P1.6",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O pin with ADC0 input 12."
},
{
"number": "20",
"name": "P1.5",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O pin with ADC0 input 11."
},
{
"number": "21",
"name": "P1.4",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O pin with ADC0 input 10."
},
{
"number": "22",
"name": "P1.3",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O pin with ADC0 input 9."
},
{
"number": "23",
"name": "P1.2",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O pin with ADC0 input 8 and comparator 0 inputs."
},
{
"number": "24",
"name": "P1.1",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O pin with ADC0 input 7 and comparator 0 inputs."
},
{
"number": "25",
"name": "P1.0",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O pin with ADC0 input 6 and comparator 0 and comparator 1 inputs."
},
{
"number": "26",
"name": "P0.7",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O pin with INT0.7/INT1.7, ADC0 input 5 and comparator inputs."
},
{
"number": "27",
"name": "P0.6",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O pin that also serves as the CNVSTR ADC conversion start input, with ADC0 input 4."
},
{
"number": "28",
"name": "P0.5",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O pin that carries the UART0 RX function and ADC0 input 3."
},
{
"number": "29",
"name": "P0.4",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O pin that carries the UART0 TX function and ADC0 input 2."
},
{
"number": "30",
"name": "P0.3",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O pin that also serves as the EXTCLK external clock input and EXTOSC oscillator function."
},
{
"number": "31",
"name": "P0.2",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O pin with ADC0 input 1 and comparator 0 inputs."
},
{
"number": "32",
"name": "P0.1",
"type": "bidirectional",
"description": "Crossbar-capable multifunction I/O pin with ADC0 input 0 and comparator 0 inputs."
},
{
"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 hint VQFN-32-EP(4x4) does not match the MPN. Table 2.1 (page 4) lists EFM8LB12F32E-C-QFP32 as a ; Table 6.2 has no center/exposed pad entry for QFP32, and the AGND label printed after pin 32 is not "
],
"pages_sent": 45,
"cost_usd": 0.0459,
"at": "2026-10-28T16:07:31"
},
"datasheet": {
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"pages": 77,
"sha256": "4bb882f3cda45564",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 33,
"described": 33,
"cites_pages": true,
"refuses_to_fabricate": true
}
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{
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"metadata": {
"specs": {
"Manufacturer": "SILICON LABS",
"Package": "VQFN-32-EP(4x4)",
"Category": "Embedded Processors & Controllers",
"Pins": "33"
},
"appearance": {
"housing": {
"quote": "4. Recommended card reflow profile is per the JEDEC/IPC J-STD-020C specification for Small Body Components.",
"page": 60,
"doc": "ds.pdf",
"material": "PC"
},
"version": 1,
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{
"name": "Operating Supply Voltage on VDD",
"symbol": "VDD",
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"unit": "V",
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"typ": null,
"max": 3.6,
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"min": null,
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"max": 5,
"conditions": "Normal Mode, code executing from flash; FSYSCLK = 24.5 MHz (HFOSC0)",
"source_page": 19,
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"name": "Digital Core Supply Current, Normal mode",
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"unit": "μA",
"min": null,
"typ": 625,
"max": 1050,
"conditions": "Normal Mode, code executing from flash; FSYSCLK = 1.53 MHz (HFOSC0)",
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"name": "Digital Core Supply Current, Normal mode",
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"typ": 155,
"max": 575,
"conditions": "Normal Mode, code executing from flash; FSYSCLK = 80 kHz",
"source_page": 19,
"source": "datasheet"
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{
"name": "Digital Core Supply Current, Idle mode",
"symbol": "IDD",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 9.6,
"max": 11.1,
"conditions": "Idle Mode, core halted with peripherals running; FSYSCLK = 72 MHz (HFOSC1)",
"source_page": 19,
"source": "datasheet"
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{
"name": "Digital Core Supply Current, Idle mode",
"symbol": "IDD",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 3.14,
"max": 3.8,
"conditions": "Idle Mode, core halted with peripherals running; FSYSCLK = 24.5 MHz (HFOSC0)",
"source_page": 19,
"source": "datasheet"
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{
"name": "Digital Core Supply Current, Idle mode",
"symbol": "IDD",
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"min": null,
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"max": 950,
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{
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"typ": 135,
"max": 550,
"conditions": "Idle Mode, core halted with peripherals running; FSYSCLK = 80 kHz",
"source_page": 19,
"source": "datasheet"
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{
"name": "Digital Core Supply Current, Suspend mode",
"symbol": "IDD",
"kind": "electrical",
"unit": "μA",
"min": null,
"typ": 125,
"max": 545,
"conditions": "Suspend Mode, core halted, high frequency clocks stopped, supply monitor off; LFO Running",
"source_page": 19,
"source": "datasheet"
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{
"name": "Digital Core Supply Current, Suspend mode",
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"typ": 120,
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"conditions": "Suspend Mode, core halted, high frequency clocks stopped, supply monitor off; LFO Stopped",
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{
"name": "Digital Core Supply Current, Snooze mode",
"symbol": "IDD",
"kind": "electrical",
"unit": "μA",
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"typ": 23,
"max": 430,
"conditions": "Snooze Mode, core halted, high frequency clocks stopped, regulator low-power, supply monitor off; LFO Running",
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"source": "datasheet"
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{
"name": "Digital Core Supply Current, Snooze mode",
"symbol": "IDD",
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"typ": 19,
"max": 425,
"conditions": "Snooze Mode, core halted, high frequency clocks stopped, regulator low-power, supply monitor off; LFO Stopped",
"source_page": 19,
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{
"name": "Digital Core Supply Current, Stop mode",
"symbol": "IDD",
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"typ": 120,
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"conditions": "Stop Mode, core halted and all clocks stopped, internal LDO on, supply monitor off",
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{
"name": "Digital Core Supply Current, Shutdown mode",
"symbol": "IDD",
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"typ": 0.2,
"max": 2.1,
"conditions": "Shutdown Mode, core halted and all clocks stopped, internal LDO off, supply monitor off",
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{
"name": "High-Frequency Oscillator 0 Supply Current",
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"min": null,
"typ": 120,
"max": 135,
"conditions": "Operating at 24.5 MHz, TA = 25 °C",
"source_page": 19,
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{
"name": "High-Frequency Oscillator 1 Supply Current",
"symbol": "IHFOSC1",
"kind": "electrical",
"unit": "μA",
"min": null,
"typ": 1285,
"max": 1340,
"conditions": "Operating at 72 MHz, TA = 25 °C",
"source_page": 19,
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{
"name": "Low-Frequency Oscillator Supply Current",
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"kind": "electrical",
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"min": null,
"typ": 3.7,
"max": 6,
"conditions": "Operating at 80 kHz, TA = 25 °C",
"source_page": 19,
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{
"name": "Throughput Rate (High Speed Mode)",
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"kind": "electrical",
"unit": "ksps",
"min": null,
"typ": null,
"max": 900,
"conditions": "14 Bit Mode",
"source_page": 24,
"source": "datasheet"
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{
"name": "Throughput Rate (High Speed Mode)",
"symbol": "fS",
"kind": "electrical",
"unit": "Msps",
"min": null,
"typ": null,
"max": 1,
"conditions": "12 Bit Mode",
"source_page": 24,
"source": "datasheet"
},
{
"name": "Throughput Rate (High Speed Mode)",
"symbol": "fS",
"kind": "electrical",
"unit": "Msps",
"min": null,
"typ": null,
"max": 1.125,
"conditions": "10 Bit Mode",
"source_page": 24,
"source": "datasheet"
},
{
"name": "Tracking Time (High Speed Mode)",
"symbol": "tTRK",
"kind": "timing",
"unit": "ns",
"min": 217.81,
"typ": null,
"max": null,
"conditions": "High Speed Mode",
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