component
PIC16F18346-I
Public Made by Adomby adom
Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), VQFN-20-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "pic16f18346-i",
"version": "0.1.0",
"type": "component",
"description": "Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), VQFN-20-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"single chip microcomputer-microcontroller",
"pic16f18346-i",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"pic16f18346-i.kicad_sym",
"pic16f18346-i.kicad_mod",
"pic16f18346-i.glb",
"pic16f18346-i.step",
"pic16f18346-i.lbr",
"docs/hero.png",
"docs/pic16f18346-i-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"pic16f18346-i-hero.glb",
"pic16f18346-i-hero.overlay.json",
"pic16f18346-i-etched.glb"
],
"component": {
"mpn": "PIC16F18346-I",
"manufacturer": "Microchip Tech",
"package": "VQFN-20-EP(4x4)",
"pin_count": 21,
"category": "Single Chip Microcomputer/Microcontroller",
"subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
"datasheet": "https://ww1.microchip.com/downloads/en/DeviceDoc/40001839E.pdf",
"parts": {
"symbol": "pic16f18346-i.kicad_sym",
"footprint": "pic16f18346-i.kicad_mod",
"model_3d": "pic16f18346-i-hero.glb",
"model_3d_plain": "pic16f18346-i-etched.glb",
"model_3d_step": "pic16f18346-i-etched.step",
"model_3d_step_plain": "pic16f18346-i.step",
"lbr": "pic16f18346-i.lbr"
},
"distributor_links": {
"lcsc": "C637902"
},
"distributor_check": {
"checked_at": "2026-10-23T12:18:32Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "RA3/MCLR/VPP",
"type": "input",
"description": "Input-only RA3 port pin that serves as Master Clear (MCLR, with internal weak pull-up) and the high-voltage programming input VPP."
},
{
"number": "2",
"name": "RC5",
"type": "bidirectional",
"description": "General purpose I/O RC5 with ADC channel C5 (ANC5), and default inputs MDCIN2 and CCP1."
},
{
"number": "3",
"name": "RC4",
"type": "bidirectional",
"description": "General purpose I/O RC4 with ADC channel C4 input (ANC4)."
},
{
"number": "4",
"name": "RC3",
"type": "bidirectional",
"description": "General purpose I/O RC3 with ADC channel C3, comparator C1/C2 negative inputs (C1IN3-, C2IN3-), and default inputs MDMIN, CCP2 and CLCIN1."
},
{
"number": "5",
"name": "RC6",
"type": "bidirectional",
"description": "General purpose I/O RC6 with ADC channel C6 (ANC6) and default SS1 slave select input."
},
{
"number": "6",
"name": "RC7",
"type": "bidirectional",
"description": "General purpose I/O RC7 with ADC channel C7 input (ANC7)."
},
{
"number": "7",
"name": "RB7",
"type": "bidirectional",
"description": "General purpose I/O RB7 with ADC channel B7 (ANB7), default SCK2 SPI clock and SCL2 I2C clock."
},
{
"number": "8",
"name": "RB6",
"type": "bidirectional",
"description": "General purpose I/O RB6 with ADC channel B6 (ANB6), default SCK1 SPI clock and SCL1 I2C clock."
},
{
"number": "9",
"name": "RB5",
"type": "bidirectional",
"description": "General purpose I/O RB5 with ADC channel B5 (ANB5), default SDI2, SDA2, EUSART RX and CLCIN3 inputs; DT synchronous data."
},
{
"number": "10",
"name": "RB4",
"type": "bidirectional",
"description": "General purpose I/O RB4 with ADC channel B4 (ANB4), default SDI1, SDA1 and CLCIN2 inputs."
},
{
"number": "11",
"name": "RC2",
"type": "bidirectional",
"description": "General purpose I/O RC2 with ADC channel C2, comparator C1/C2 negative inputs (C1IN2-, C2IN2-) and MDCIN1 modulator carrier input."
},
{
"number": "12",
"name": "RC1",
"type": "bidirectional",
"description": "General purpose I/O RC1 with ADC channel C1 and comparator C1/C2 negative inputs (C1IN1-, C2IN1-)."
},
{
"number": "13",
"name": "RC0",
"type": "bidirectional",
"description": "General purpose I/O RC0 with ADC channel C0 and comparator C2 positive input (C2IN0+)."
},
{
"number": "14",
"name": "RA2",
"type": "bidirectional",
"description": "General purpose I/O RA2 with ADC channel A2, VREF- and DAC1REF- inputs, and default T0CKI, CCP3, CWG1IN, CWG2IN, CLCIN0 and INT inputs."
},
{
"number": "15",
"name": "RA1/ICSPCLK",
"type": "bidirectional",
"description": "General purpose I/O RA1 with ADC channel A1, VREF+, comparator negative inputs, DAC1REF+, SS2 input, and ICSP/in-circuit debug clock (ICSPCLK/ICDCLK)."
},
{
"number": "16",
"name": "RA0/ICSPDAT",
"type": "bidirectional",
"description": "General purpose I/O RA0 with ADC channel A0, comparator C1 positive input, DAC1OUT output, and ICSP/in-circuit debug data (ICSPDAT/ICDDAT)."
},
{
"number": "17",
"name": "VSS",
"type": "power_in",
"description": "Ground reference."
},
{
"number": "18",
"name": "VDD",
"type": "power_in",
"description": "Positive supply, 1.8V to 3.6V for PIC16LF18346 and 2.3V to 5.5V for PIC16F18346."
},
{
"number": "19",
"name": "RA5",
"type": "bidirectional",
"description": "General purpose I/O RA5 with ADC channel A5, T1CKI/T3CKI/T5CKI clock inputs, secondary oscillator SOSCIN/SOSCI, external clock CLKIN and crystal OSC1."
},
{
"number": "20",
"name": "RA4",
"type": "bidirectional",
"description": "General purpose I/O RA4 with ADC channel A4, T1G/T3G/T5G gate inputs, CCP4 input, secondary oscillator SOSCO, CLKOUT (FOSC/4) and crystal OSC2."
},
{
"number": "21",
"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-sonnet-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: Datasheet says the exposed bottom pad should be connected to VSS but must not be the main VSS connec; Pin-1 text is jumbled in the OCR of Figure 4 but agrees with Table 3. The text also says PIC16(L)F18"
],
"pages_sent": 84,
"cost_usd": 0.6848,
"at": "2026-10-23T12:18:19"
},
"datasheet": {
"url": "https://ww1.microchip.com/downloads/en/DeviceDoc/40001839E.pdf",
"pages": 500,
"sha256": "caaf66beaba7d548",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 21,
"described": 21,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "pic16f18346-i.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
4.0,
4.0,
0.77
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "c9476a1612023de37f27b4972110ab6ac6dc0eaf5ac48957a2e1c497650082a5",
"checked": "2026-10-23",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "pic16f18346-i-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
4.0,
4.0,
0.77
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "183447afbce5a414c9efd7a6008ca13473ff76fb7188caf9bc63a49a6f26f8b3",
"checked": "2026-10-23",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
}
}