PIC12F1840-E

{
  "schema_version": 1,
  "type": "component",
  "slug": "pic12f1840-e",
  "title": "PIC12F1840-E",
  "brief": "Microchip Tech Microcontrollers (MCU/MPU/SOC), PDIP-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",
    "embedded processors & controllers",
    "pic12f1840-e",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "PIC12F1840-E",
    "manufacturer": "Microchip Tech",
    "package": "PDIP-8",
    "pin_count": 8,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589807942221664256",
    "parts": {
      "symbol": "pic12f1840-e.kicad_sym",
      "footprint": "pic12f1840-e.kicad_mod",
      "model_3d": "pic12f1840-e-hero.glb",
      "model_3d_plain": "pic12f1840-e-etched.glb",
      "model_3d_step": "pic12f1840-e-etched.step",
      "model_3d_step_plain": "pic12f1840-e.step",
      "lbr": "pic12f1840-e.lbr"
    },
    "distributor_links": {
      "lcsc": "C640529"
    },
    "distributor_check": {
      "checked_at": "2026-10-16T06:10:48Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply; the PIC12F1840 operates from 2.3V-5.5V (the PIC12LF1840 from 1.8V-3.6V)."
      },
      {
        "number": "2",
        "name": "RA5",
        "type": "bidirectional",
        "description": "General-purpose I/O (25 mA sink/source) that is also CLKIN external clock input, OSC1 crystal connection, Timer1 oscillator input T1OSI, Timer1 clock input T1CKI, SR latch inverting output SRNQ, PWM P1A, CCP1, and USART DT/RX."
      },
      {
        "number": "3",
        "name": "RA4",
        "type": "bidirectional",
        "description": "General-purpose I/O (25 mA sink/source) that is also ADC channel AN3, capacitive sensing CPS3, OSC2/CLKOUT crystal connection or FOSC/4 output, Timer1 oscillator output T1OSO, comparator C1IN1-, clock reference CLKR, SPI SDO, USART CK/TX, PWM P1B, Timer1 gate T1G, and modulator carrier input MDCIN2."
      },
      {
        "number": "4",
        "name": "MCLR/VPP/RA3",
        "type": "input",
        "description": "RA3 is an input-only pin (TRISA3 always reads '1') that functions as Master Clear reset input MCLR with internal pull-up or as high-voltage programming input VPP, and also carries the SS and T1G alternate functions."
      },
      {
        "number": "5",
        "name": "RA2",
        "type": "bidirectional",
        "description": "General-purpose I/O (25 mA sink/source) that is also ADC channel AN2, capacitive sensing CPS2, comparator C1OUT, SR latch output SRQ, Timer0 clock T0CKI, CCP1/P1A, ECCP auto-shutdown fault input FLT0, I2C SDA, SPI SDI, external interrupt INT, and modulator carrier input MDCIN1."
      },
      {
        "number": "6",
        "name": "RA1/ICSPCLK",
        "type": "bidirectional",
        "description": "General-purpose I/O (25 mA sink/source) that is also ADC channel AN1, VREF input, capacitive sensing CPS1, comparator C1IN0-, SR latch input SRI, USART RX/DT, I2C SCL, SPI SCK, modulator source input MDMIN, and the ICSP serial programming clock ICSPCLK."
      },
      {
        "number": "7",
        "name": "RA0/ICSPDAT",
        "type": "bidirectional",
        "description": "General-purpose I/O (25 mA sink/source) that is also ADC channel AN0, DAC output DACOUT, capacitive sensing CPS0, comparator C1IN+, USART TX/CK, SPI SDO and SS, PWM P1B, modulator output MDOUT, and the ICSP data pin ICSPDAT."
      },
      {
        "number": "8",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference for the device."
      }
    ],
    "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 MPN as given (PIC12F1840-E) has no package suffix. The datasheet lists PDIP among the 8-pin pack; Pin 4 is a multiplexed pin (RA3 / MCLR / VPP). It is typed 'input' because RA3 is input-only and MCL; The datasheet gives no per-pin voltage or current limits beyond the supply range (page 1) and the 25"
        ],
        "pages_sent": 78,
        "cost_usd": 0.2913,
        "at": "2026-10-16T06:10:32"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589807942221664256",
        "pages": 397,
        "sha256": "79e88d8e63728e96",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "file": "pic12f1840-e.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
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          9.27,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "4a377a56a8d9e9c0b86c095ef9ecc1869ac19e7f5069a3247b294250bf4f235d",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "pic12f1840-e-etched.step",
        "role": "eda",
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        "sha256": "ccedfedca85fbeb38f2e46d60ec7eb7deeb52d947cf3e751cf64e854da07a502",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "PDIP-8",
      "Category": "Embedded Processors & Controllers",
      "Pins": "8"
    },
    "appearance": {
      "contacts": {
        "quote": "SN = SOIC, 8-Lead Pattern: QTP, SQTP, Code or Special Requirements",
        "page": 395,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "79e88d8e63728e96786bb51684ca657bcaafdc053c17720e736bcc9006464072"
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    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "79e88d8e63728e96786bb51684ca657bcaafdc053c17720e736bcc9006464072",
      "rows": [
        {
          "name": "Ambient temperature under bias",
          "symbol": "",
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          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
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        },
        {
          "name": "Storage temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 302,
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        },
        {
          "name": "Voltage on VDD with respect to VSS, PIC12F1840",
          "symbol": "VDD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6.5,
          "conditions": "PIC12F1840",
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          "source": "datasheet"
        },
        {
          "name": "Voltage on MCLR with respect to VSS",
          "symbol": "",
          "kind": "absolute_maximum",
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          "typ": null,
          "max": 9,
          "conditions": "",
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        {
          "name": "Voltage on all other pins with respect to VSS",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "Printed maximum is (VDD + 0.3V)",
          "source_page": 302,
          "source": "datasheet"
        },
        {
          "name": "Maximum current out of VSS pin, industrial",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 170,
          "conditions": "-40°C ≤ TA ≤ +85°C for industrial",
          "source_page": 302,
          "source": "datasheet"
        },
        {
          "name": "Maximum current out of VSS pin, extended",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 70,
          "conditions": "-40°C ≤ TA ≤ +125°C for extended",
          "source_page": 302,
          "source": "datasheet"
        },
        {
          "name": "Maximum current into VDD pin, industrial",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 170,
          "conditions": "-40°C ≤ TA ≤ +85°C for industrial",
          "source_page": 302,
          "source": "datasheet"
        },
        {
          "name": "Maximum current into VDD pin, extended",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 70,
          "conditions": "-40°C ≤ TA ≤ +125°C for extended",
          "source_page": 302,
          "source": "datasheet"
        },
        {
          "name": "Clamp current",
          "symbol": "IK",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "VPIN < 0 or VPIN > VDD",
          "source_page": 302,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature, extended (-E)",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "Extended range, -40°C ≤ TA ≤ +125°C",
          "source_page": 305,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage VDD (VDDMIN, VDDMAX)",
          "symbol": "VDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.3,
          "typ": null,
          "max": 5.5,
          "conditions": "FOSC ≤ 16 MHz",
          "source_page": 305,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage VDD (VDDMIN, VDDMAX)",
          "symbol": "VDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.5,
          "typ": null,
          "max": 5.5,
          "conditions": "FOSC ≤ 32 MHz",
          "source_page": 305,
          "source": "datasheet"
        },
        {
          "name": "RAM data retention voltage",
          "symbol": "VDR",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.7,
          "typ": null,
          "max": null,
          "conditions": "Device in Sleep mode",
          "source_page": 305,
          "source": "datasheet"
        },
        {
          "name": "VDD rise rate to ensure internal Power-on Reset signal",
          "symbol": "SVDD",
          "kind": "recommended_operating",
          "unit": "V/ms",
          "min": 0.05,
          "typ": null,
          "max": null,
          "conditions": "See Section 7.1 Power-On Reset (POR)",
          "source_page": 305,
          "source": "datasheet"
        },
        {
          "name": "Fixed Voltage Reference voltage for ADC",
          "symbol": "VADFVR",
          "kind": "tolerance",
          "unit": "%",
          "min": -8,
          "typ": null,
          "max": 6,
          "conditions": "1.024V, VDD ≥ 2.5V; 2.048V, VDD ≥ 2.5V; 4.096V, VDD ≥ 4.75V",
          "source_page": 305,
          "source": "datasheet"
        },
        {
          "name": "Fixed Voltage Reference voltage for Comparator and DAC",
          "symbol": "VCDAFVR",
          "kind": "tolerance",
          "unit": "%",
          "min": -11,
          "typ": null,
          "max": 7,
          "conditions": "1.024V, VDD ≥ 2.5V; 2.048V, VDD ≥ 2.5V; 4.096V, VDD ≥ 4.75V",
          "source_page": 305,
          "source": "datasheet"
        },
        {
          "name": "Supply current IDD, LP oscillator 32 kHz (extended)",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 17,
          "max": 60,
          "conditions": "VDD = 2.3V, FOSC = 32 kHz LP oscillator, -40°C ≤ TA ≤ +125°C",
          "source_page": 307,
          "source": "datasheet"
        },
        {
          "name": "Supply current IDD, LP oscillator 32 kHz (extended)",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 19,
          "max": 70,
          "conditions": "VDD = 3.0V, FOSC = 32 kHz LP oscillator, -40°C ≤ TA ≤ +125°C",
          "source_page": 307,
          "source": "datasheet"
        },
        {
          "name": "Supply current IDD, LP oscillator 32 kHz (extended)",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 22,
          "max": 80,
          "conditions": "VDD = 5.0V, FOSC = 32 kHz LP oscillator, -40°C ≤ TA ≤ +125°C",
          "source_page": 307,
          "source": "datasheet"
        },
        {
          "name": "Supply current IDD, HFINTOSC 16 MHz",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.9,
          "max": 1.5,
          "conditions": "VDD = 2.3V, FOSC = 16 MHz HFINTOSC",
          "source_page": 308,
          "source": "datasheet"
        },
        {
          "name": "Supply current IDD, HFINTOSC 16 MHz",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1.2,
          "max": 2,
          "conditions": "VDD = 3.0V, FOSC = 16 MHz HFINTOSC",
          "source_page": 308,
          "source": "datasheet"
        },
        {
          "name": "Supply current IDD, HFINTOSC 16 MHz",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1.3,
          "max": 2.1,
          "conditions": "VDD = 5.0V, FOSC = 16 MHz HFINTOSC",
          "source_page": 308,
          "source": "datasheet"
        },
        {
          "name": "Supply current IDD, EXTRC 4 MHz",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 290,
          "max": 400,
          "conditions": "VDD = 2.3V, FOSC = 4 MHz EXTRC",
          "source_page": 309,
          "source": "datasheet"
        },
        {
          "name": "Supply current IDD, EXTRC 4 MHz",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 415,
          "max": 550,
          "conditions": "VDD = 3.0V, FOSC = 4 MHz EXTRC",
          "source_page": 309,
          "source": "datasheet"
        },
        {
          "name": "Supply current IDD, EXTRC 4 MHz",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 495,
          "max": 600,
          "conditions": "VDD = 5.0V, FOSC = 4 MHz EXTRC",
          "source_page": 309,
          "source": "datasheet"
        },
        {
          "name": "Power-down base current IPD (WDT, BOR, FVR, T1OSC disabled), +125°C",
          "symbol": "IPD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.2,
          "max": 10,
          "conditions": "VDD = 2.3V, all peripherals inactive, Max. at +125°C",
          "source_page": 310,
          "source": "datasheet"
        },
        {
          "name": "Power-down base current IPD (WDT, BOR, FVR, T1OSC disabled), +125°C",
          "symbol": "IPD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.3,
          "max": 12,
          "conditions": "VDD = 3.0V, all peripherals inactive, Max. at +125°C",
          "source_page": 310,
          "source": "datasheet"
        },
        {
          "name": "Power-down base current IPD (WDT, BOR, FVR, T1OSC disabled), +125°C",
          "symbol": "IPD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.5,
          "max": 15,
          "conditions": "VDD = 5.0V, all peripherals inactive, Max. at +125°C",
          "source_page": 310,
          "source": "datasheet"
        },
        {
          "name": "Input low voltage, I/O port with TTL buffer",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "4.5V ≤ VDD ≤ 5.5V",
          "source_page": 312,
          "source": "datasheet"
        },
        {
          "name": "Input high voltage, I/O port with TTL buffer",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "4.5V ≤ VDD ≤ 5.5V",
          "source_page": 312,
          "source": "datasheet"
        },
        {
          "name": "Input leakage current, I/O ports (85°C)",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "nA",
          "min": -125,
          "typ": 5,
          "max": 125,
          "conditions": "VSS ≤ VPIN ≤ VDD, pin at high impedance, 85°C",
          "source_page": 312,
          "source": "datasheet"
        },
        {
          "name": "Input leakage current, MCLR (85°C)",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "nA",
          "min": -200,
          "typ": 50,
          "max": 200,
          "conditions": "VSS ≤ VPIN ≤ VDD, pin at high impedance, 85°C",
          "source_page": 312,
          "source": "datasheet"
        },
        {
          "name": "Weak pull-up current",
          "symbol": "IPUR",
          "kind": "electrical",
          "unit": "µA",
          "min": 25,
          "typ": 100,
          "max": 200,
          "conditions": "VDD = 3.3V, VPIN = VSS",
          "source_page": 312,
          "source": "datasheet"
        },
        {
          "name": "Weak pull-up current",
          "symbol": "IPUR",
          "kind": "electrical",
          "unit": "µA",
          "min": 25,
          "typ": 140,
          "max": 300,
          "conditions": "VDD = 5.0V, VPIN = VSS",
          "source_page": 312,
          "source": "datasheet"
        },
        {
          "name": "Output low voltage, I/O ports",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.6,
          "conditions": "IOL = 8 mA, VDD = 5V",
          "source_page": 312,
          "source": "datasheet"
        },
        {
          "name": "Capacitive loading, OSC2 pin",
          "symbol": "COSC2",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": null,
          "max": 15,
          "conditions": "In XT, HS and LP modes when external clock is used to drive OSC1",
          "source_page": 313,
          "source": "datasheet"
        },
        {
          "name": "Capacitive loading, all I/O pins",
          "symbol": "CIO",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "All I/O pins",
          "source_page": 313,
          "source": "datasheet"
        },
        {
          "name": "MCLR pulse width (low)",
          "symbol": "TMCL",
          "kind": "timing",
          "unit": "µs",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 321,
          "source": "datasheet"
        },
        {
          "name": "Low-power Watchdog Timer time-out period",
          "symbol": "TWDTLP",
          "kind": "timing",
          "unit": "ms",
          "min": 10,
          "typ": 16,
          "max": 27,
          "conditions": "VDD = 3.3V-5V, 1:16 Prescaler used",
          "source_page": 321,
          "source": "datasheet"
        },
        {
          "name": "Power-up Timer period, PWRTE = 0",
          "symbol": "TPWRT",
          "kind": "timing",
          "unit": "ms",
          "min": 40,
          "typ": 65,
          "max": 140,
          "conditions": "PWRTE = 0",
          "source_page": 321,
          "source": "datasheet"
        },
        {
          "name": "Brown-out Reset voltage, BORV = 0",
          "symbol": "VBOR",
          "kind": "electrical",
          "unit": "V",
          "min": 2.55,
          "typ": 2.7,
          "max": 2.85,
          "conditions": "BORV = 0, PIC12F1840",
          "source_page": 321,
          "source": "datasheet"
        },
        {
          "name": "Brown-out Reset voltage, BORV = 1",
          "symbol": "VBOR",
          "kind": "electrical",
          "unit": "V",
          "min": 2.35,
          "typ": 2.45,
          "max": 2.58,
          "conditions": "BORV = 1, PIC12F1840",
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