CY8C4124LQI-443

{
  "schema_version": 1,
  "type": "component",
  "slug": "cy8c4124lqi-443",
  "title": "CY8C4124LQI-443",
  "brief": "Cypress Semicon Microcontroller Units (MCUs/MPUs/SOCs), QFN-40(6x6). 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",
    "single chip microcomputer-microcontroller",
    "cy8c4124lqi-443",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "CY8C4124LQI-443",
    "manufacturer": "Cypress Semicon",
    "package": "QFN-40(6x6)",
    "pin_count": 41,
    "category": "Single Chip Microcomputer/Microcontroller",
    "subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
    "datasheet": "https://www.infineon.com/dgdl/Infineon-PSoC_4_PSoC_4100_Family-DataSheet-v12_00-EN.pdf?fileId=8ac78c8c7d0d8da4017d0ec86cc240d7&utm_source=cypress&utm_medium=referral&utm_campaign=202110_globe_en_all_integration-files",
    "parts": {
      "symbol": "cy8c4124lqi-443.kicad_sym",
      "footprint": "cy8c4124lqi-443.kicad_mod",
      "model_3d": "cy8c4124lqi-443-hero.glb",
      "model_3d_plain": "cy8c4124lqi-443-etched.glb",
      "model_3d_step": "cy8c4124lqi-443-etched.step",
      "model_3d_step_plain": "cy8c4124lqi-443.step",
      "lbr": "cy8c4124lqi-443.lbr"
    },
    "distributor_links": {
      "lcsc": "C2959309",
      "digikey": "CY8C4124LQI-443-ND",
      "mouser": "727-CY8C4124LQI-443"
    },
    "distributor_check": {
      "checked_at": "2026-10-31T01:12:43Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "CY8C4124LQI-443-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "727-CY8C4124LQI-443",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "P2.0",
        "type": "bidirectional",
        "description": "Port 2 Pin 0 GPIO with LCD, CSD CapSense and SAR mux input sarmux.0; Port 2 carries the high-speed analog inputs for the SAR mux."
      },
      {
        "number": "2",
        "name": "P2.1",
        "type": "bidirectional",
        "description": "Port 2 Pin 1 GPIO with LCD, CSD CapSense and SAR mux input sarmux.1."
      },
      {
        "number": "3",
        "name": "P2.2",
        "type": "bidirectional",
        "description": "Port 2 Pin 2 GPIO with LCD, CSD CapSense and SAR mux input sarmux.2."
      },
      {
        "number": "4",
        "name": "P2.3",
        "type": "bidirectional",
        "description": "Port 2 Pin 3 GPIO with LCD, CSD CapSense and SAR mux input sarmux.3."
      },
      {
        "number": "5",
        "name": "P2.4",
        "type": "bidirectional",
        "description": "Port 2 Pin 4 GPIO with LCD, CSD CapSense, SAR mux input sarmux.4 and TCPWM0 output tcpwm0_p[1]."
      },
      {
        "number": "6",
        "name": "P2.5",
        "type": "bidirectional",
        "description": "Port 2 Pin 5 GPIO with LCD, CSD CapSense, SAR mux input sarmux.5 and TCPWM0 complementary output tcpwm0_n[1]."
      },
      {
        "number": "7",
        "name": "P2.6",
        "type": "bidirectional",
        "description": "Port 2 Pin 6 GPIO with LCD, CSD CapSense, SAR mux input sarmux.6 and TCPWM1 output tcpwm1_p[1]."
      },
      {
        "number": "8",
        "name": "P2.7",
        "type": "bidirectional",
        "description": "Port 2 Pin 7 GPIO with LCD, CSD CapSense, SAR mux input sarmux.7 and TCPWM1 complementary output tcpwm1_n[1]."
      },
      {
        "number": "9",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin."
      },
      {
        "number": "10",
        "name": "P3.0",
        "type": "bidirectional",
        "description": "Port 3 Pin 0 GPIO with LCD, CSD, PWM tcpwm0_p[0] and SCB1 UART RX / I2C SCL / SPI MOSI alternates."
      },
      {
        "number": "11",
        "name": "P3.1",
        "type": "bidirectional",
        "description": "Port 3 Pin 1 GPIO with LCD, CSD, PWM tcpwm0_n[0] and SCB1 UART TX / I2C SDA / SPI MISO alternates."
      },
      {
        "number": "12",
        "name": "P3.2",
        "type": "bidirectional",
        "description": "Port 3 Pin 2 GPIO with LCD, CSD, PWM tcpwm1_p[0], SCB1 SPI clock and SWD I/O (swd_io[0]); this pin is an SWD pin after boot (reset)."
      },
      {
        "number": "13",
        "name": "P3.3",
        "type": "bidirectional",
        "description": "Port 3 Pin 3 GPIO with LCD, CSD, PWM tcpwm1_n[0], SCB1 SPI slave select 0 and SWD clock (swd_clk[0]); this pin is an SWD pin after boot (reset)."
      },
      {
        "number": "14",
        "name": "P3.4",
        "type": "bidirectional",
        "description": "Port 3 Pin 4 GPIO with LCD, CSD, PWM tcpwm2_p[0] and SCB1 SPI slave select 1."
      },
      {
        "number": "15",
        "name": "P3.5",
        "type": "bidirectional",
        "description": "Port 3 Pin 5 GPIO with LCD, CSD, PWM tcpwm2_n[0] and SCB1 SPI slave select 2."
      },
      {
        "number": "16",
        "name": "P3.6",
        "type": "bidirectional",
        "description": "Port 3 Pin 6 GPIO with LCD, CSD, PWM tcpwm3_p[0] and SCB1 SPI slave select 3."
      },
      {
        "number": "17",
        "name": "P3.7",
        "type": "bidirectional",
        "description": "Port 3 Pin 7 GPIO with LCD, CSD and PWM tcpwm3_n[0] alternates."
      },
      {
        "number": "18",
        "name": "P4.0",
        "type": "bidirectional",
        "description": "Port 4 Pin 0 GPIO with LCD, CSD and SCB0 UART RX / I2C SCL / SPI MOSI alternates."
      },
      {
        "number": "19",
        "name": "P4.1",
        "type": "bidirectional",
        "description": "Port 4 Pin 1 GPIO with LCD, CSD and SCB0 UART TX / I2C SDA / SPI MISO alternates."
      },
      {
        "number": "20",
        "name": "P4.2",
        "type": "bidirectional",
        "description": "Port 4 Pin 2 GPIO with LCD, CSD, CSD modulator connection csd_c_mod and SCB0 SPI clock."
      },
      {
        "number": "21",
        "name": "P4.3",
        "type": "bidirectional",
        "description": "Port 4 Pin 3 GPIO with LCD, CSD, CSD shield tank connection csd_c_sh_tank and SCB0 SPI slave select 0."
      },
      {
        "number": "22",
        "name": "P0.0",
        "type": "bidirectional",
        "description": "Port 0 Pin 0 GPIO with LCD, CSD, comparator 1 positive input comp1_inp and SCB0 SPI slave select 1."
      },
      {
        "number": "23",
        "name": "P0.1",
        "type": "bidirectional",
        "description": "Port 0 Pin 1 GPIO with LCD, CSD, comparator 1 negative input comp1_inn and SCB0 SPI slave select 2."
      },
      {
        "number": "24",
        "name": "P0.2",
        "type": "bidirectional",
        "description": "Port 0 Pin 2 GPIO with LCD, CSD, comparator 2 positive input comp2_inp and SCB0 SPI slave select 3."
      },
      {
        "number": "25",
        "name": "P0.3",
        "type": "bidirectional",
        "description": "Port 0 Pin 3 GPIO with LCD, CSD and comparator 2 negative input comp2_inn."
      },
      {
        "number": "26",
        "name": "P0.4",
        "type": "bidirectional",
        "description": "Port 0 Pin 4 GPIO with LCD, CSD and SCB1 UART RX[1] / I2C SCL[1] / SPI MOSI[1] alternates."
      },
      {
        "number": "27",
        "name": "P0.5",
        "type": "bidirectional",
        "description": "Port 0 Pin 5 GPIO with LCD, CSD and SCB1 UART TX[1] / I2C SDA[1] / SPI MISO[1] alternates."
      },
      {
        "number": "28",
        "name": "P0.6",
        "type": "bidirectional",
        "description": "Port 0 Pin 6 GPIO with LCD, CSD, external clock input ext_clk and SCB1 SPI clock[1]."
      },
      {
        "number": "29",
        "name": "P0.7",
        "type": "bidirectional",
        "description": "Port 0 Pin 7 GPIO with LCD, CSD, wakeup input and SCB1 SPI slave select 0[1]."
      },
      {
        "number": "30",
        "name": "XRES",
        "type": "input",
        "description": "Chip reset input, active low; it has an internal pull-up resistor that is always enabled."
      },
      {
        "number": "31",
        "name": "VCCD",
        "type": "power_out",
        "description": "Regulated digital supply: connect to a 1 µF capacitor (datasheet range 1 µF to 1.6 µF, X5R or better) in unregulated mode, or drive at 1.8 V ±5% in regulated mode."
      },
      {
        "number": "32",
        "name": "VDDD",
        "type": "power_in",
        "description": "Digital supply, 1.8 V to 5.5 V, powering the digital section (and the analog section where no VDDA pin exists)."
      },
      {
        "number": "33",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply, 1.8 V to 5.5 V, equal to VDDD and must be shorted to VDDD in unregulated mode."
      },
      {
        "number": "34",
        "name": "VSSA",
        "type": "power_in",
        "description": "Analog ground pin, shorted to VSS in unregulated mode."
      },
      {
        "number": "35",
        "name": "P1.0",
        "type": "bidirectional",
        "description": "Port 1 Pin 0 GPIO with LCD, CSD, CTB op-amp 0 non-inverting input ctb.oa0.inp and PWM tcpwm2_p[1]."
      },
      {
        "number": "36",
        "name": "P1.1",
        "type": "bidirectional",
        "description": "Port 1 Pin 1 GPIO with LCD, CSD, CTB op-amp 0 inverting input ctb.oa0.inm and PWM tcpwm2_n[1]."
      },
      {
        "number": "37",
        "name": "P1.2",
        "type": "bidirectional",
        "description": "Port 1 Pin 2 GPIO with LCD, CSD, CTB op-amp 0 output ctb.oa0.out and PWM tcpwm3_p[1]."
      },
      {
        "number": "38",
        "name": "P1.3",
        "type": "bidirectional",
        "description": "Port 1 Pin 3 GPIO with LCD, CSD, CTB op-amp 1 output ctb.oa1.out and PWM tcpwm3_n[1]."
      },
      {
        "number": "39",
        "name": "P1.4",
        "type": "bidirectional",
        "description": "Port 1 Pin 4 GPIO with LCD, CSD and CTB op-amp 1 inverting input ctb.oa1.inm."
      },
      {
        "number": "40",
        "name": "P1.7/VREF",
        "type": "bidirectional",
        "description": "Port 1 Pin 7 GPIO with LCD, CSD, CTB op-amp 1 alternate non-inverting input ctb.oa1.inp_alt and optional external reference input/bypass for the SAR (ext_vref)."
      },
      {
        "number": "41",
        "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: Package mapping: the ordering table row for CY8C4124LQI-443 shows 34 GPIOs. The 40-QFN column matche; Package dimension: the hint 'QFN-40(6x6)' could not be confirmed. The text says only '40-pin QFN' / ; Pins 9 and 34 are listed as VSS and VSSA respectively in the 40-QFN column. The exposed center pad (",
          "exposed pad 41 added from the footprint"
        ],
        "pages_sent": 24,
        "cost_usd": 0.1726,
        "at": "2026-10-31T01:12:02"
      },
      "datasheet": {
        "url": "https://www.infineon.com/dgdl/Infineon-PSoC_4_PSoC_4100_Family-DataSheet-v12_00-EN.pdf?fileId=8ac78c8c7d0d8da4017d0ec86cc240d7&utm_source=cypress&utm_medium=referral&utm_campaign=202110_globe_en_all_integration-files",
        "pages": 44,
        "sha256": "96f5358c3c46932a",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 41,
        "described": 41,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "cy8c4124lqi-443.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          6,
          1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "e5b4286c2329085d9ef7f90d5eb5bf41a435241ecc1baaf1383823b6d6a946ae",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cy8c4124lqi-443-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          6,
          1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "856550212293a83ebf80f4f41e366ae918455832c2cf731ea3414af3448e7a01",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Cypress Semicon",
      "Package": "QFN-40(6x6)",
      "Category": "Single Chip Microcomputer/Microcontroller",
      "Pins": "41"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "96f5358c3c46932a48b967aea9b9378821362c6278b3d03339142bde05509c78",
      "rows": [
        {
          "name": "Absolute max digital supply relative to VSSD",
          "symbol": "VDDD_ABS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 6,
          "conditions": "Absolute max",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "Direct digital core voltage input relative to VSSD",
          "symbol": "VCCD_ABS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 1.95,
          "conditions": "Absolute max",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "GPIO voltage",
          "symbol": "VGPIO_ABS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": null,
          "conditions": "Absolute max",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "Maximum current per GPIO",
          "symbol": "IGPIO_ABS",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -25,
          "typ": null,
          "max": 25,
          "conditions": "Absolute max",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "GPIO injection current, Max for VIH > VDDD, and Min for VIL < VSS",
          "symbol": "IGPIO_injection",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "Absolute max, current injected per pin",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "Electrostatic discharge human body model",
          "symbol": "ESD_HBM",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": 2200,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "Electrostatic discharge charged device model",
          "symbol": "ESD_CDM",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": 500,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "Pin current for latch-up",
          "symbol": "LU",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -200,
          "typ": null,
          "max": 200,
          "conditions": "",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "Maximum storage temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "Per JESD22-A103 (Table 1 Note 1)",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "Power Supply Input Voltage (VDDA = VDDD = VDD)",
          "symbol": "VDD",
          "kind": "electrical",
          "unit": "V",
          "min": 1.8,
          "typ": null,
          "max": 5.5,
          "conditions": "With regulator enabled",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "Power Supply Input Voltage unregulated",
          "symbol": "VDDD",
          "kind": "electrical",
          "unit": "V",
          "min": 1.71,
          "typ": 1.8,
          "max": 1.89,
          "conditions": "Internally unregulated Supply",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "External Regulator voltage (VCCD) bypass",
          "symbol": "CEFC",
          "kind": "electrical",
          "unit": "µF",
          "min": 1,
          "typ": 1.3,
          "max": 1.6,
          "conditions": "X5R ceramic or better",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "Power supply decoupling capacitor",
          "symbol": "CEXC",
          "kind": "electrical",
          "unit": "µF",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "X5R ceramic or better",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "Execute from Flash; CPU at 6 MHz",
          "symbol": "IDD4",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 2.8,
          "conditions": "Active Mode, VDD = 1.71 V to 5.5 V; Execute from Flash; CPU at 6 MHz",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "Execute from Flash; CPU at 12 MHz",
          "symbol": "IDD7",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 4.2,
          "conditions": "Active Mode, VDD = 1.71 V to 5.5 V; Execute from Flash; CPU at 12 MHz",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "Execute from Flash; CPU at 24 MHz",
          "symbol": "IDD12",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 7.2,
          "conditions": "Active Mode, VDD = 1.71 V to 5.5 V; Execute from Flash; CPU at 24 MHz",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "Sleep mode current, I2C wakeup, WDT, and Comparators on, 6 MHz",
          "symbol": "IDD20",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1.3,
          "max": 1.8,
          "conditions": "Sleep Mode, VDD = 1.7 V to 5.5 V; VDD = 1.71 to 5.5 V",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "Sleep mode current, I2C wakeup, WDT, and Comparators on, 12 MHz",
          "symbol": "IDD20A",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1.7,
          "max": 2.2,
          "conditions": "Sleep Mode, VDD = 1.7 V to 5.5 V; VDD = 1.71 to 5.5 V",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "Deep Sleep current, I2C wakeup and WDT on",
          "symbol": "IDD27",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 45,
          "conditions": "Deep Sleep, VDD = 1.8 V to 3.6 V (Regulator on); T = 85 °C",
          "source_page": 20,
          "source": "datasheet"
        },
        {
          "name": "Deep Sleep current, I2C wakeup and WDT on",
          "symbol": "IDD29",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 1.5,
          "max": 15,
          "conditions": "Deep Sleep, VDD = 3.6 V to 5.5 V; Typ at 25 °C, Max at 85 °C",
          "source_page": 20,
          "source": "datasheet"
        },
        {
          "name": "Deep Sleep current, I2C wakeup and WDT on",
          "symbol": "IDD33",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 60,
          "conditions": "Deep Sleep, VDD = 1.71 V to 1.89 V (Regulator bypassed); T = 85 °C",
          "source_page": 20,
          "source": "datasheet"
        },
        {
          "name": "Hibernate current, GPIO and Reset active",
          "symbol": "IDD36",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": 1000,
          "conditions": "Hibernate, VDD = 1.8 V to 3.6 V (Regulator on); T = 85 °C",
          "source_page": 20,
          "source": "datasheet"
        },
        {
          "name": "Stop Mode current",
          "symbol": "IDD43A",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": 20,
          "max": 80,
          "conditions": "Stop Mode current; VDD = 3.3 V; Typ at 25 °C, Max at 85 °C",
          "source_page": 20,
          "source": "datasheet"
        },
        {
          "name": "Supply current while XRES asserted",
          "symbol": "IDD_XR",
          "kind": "electrical",
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