component
STM8L151F2P6
Public Made by Adomby adom
STMicroelectronics Microcontrollers (MCU/MPU/SOC), TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"title": "STM8L151F2P6",
"brief": "STMicroelectronics Microcontrollers (MCU/MPU/SOC), TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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"component": {
"mpn": "STM8L151F2P6",
"manufacturer": "STMicroelectronics",
"package": "TSSOP-20",
"pin_count": 20,
"category": "Embedded Processors & Controllers",
"subcategory": "Microcontrollers (MCU/MPU/SOC)",
"datasheet": "https://www.st.com/resource/en/datasheet/stm8l151f2p6.pdf",
"parts": {
"symbol": "stm8l151f2p6.kicad_sym",
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"distributor_links": {
"lcsc": "C1339053",
"digikey": "497-19223-ND",
"mouser": "511-STM8L151F2P6"
},
"distributor_check": {
"checked_at": "2026-11-05T23:40:48Z",
"source": "Component Ocean /api/assign-pns",
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"pn": "497-19223-ND",
"status": "found"
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},
"pins": [
{
"number": "1",
"name": "PC5/OSC32_IN",
"type": "bidirectional",
"description": "Port C5 is a high-sink I/O that also serves as the LSE oscillator input, with alternates SPI1_NSS, USART_TX and TIM2_CH1 (20-pin packages only)."
},
{
"number": "2",
"name": "PC6/OSC32_OUT",
"type": "bidirectional",
"description": "Port C6 is a high-sink I/O that also serves as the LSE oscillator output, with alternates SPI_SCK, USART_RX and TIM2_CH2 (20-pin packages only)."
},
{
"number": "3",
"name": "PA0",
"type": "bidirectional",
"description": "Port A0 is the high-sink LED driver capable pin, input pull-up during reset and after reset release, with alternates USART_CK, SWIM input/output, BEEP output and infrared timer output."
},
{
"number": "4",
"name": "NRST/PA1",
"type": "bidirectional",
"description": "This pin is the reset input with pull-up at power-up (NRST), with an RPU of 30 to 60 kΩ and an input low level VIL(NRST) max of 0.8 V; as PA1 it can only be configured as output open-drain or push-pull."
},
{
"number": "5",
"name": "PA2",
"type": "bidirectional",
"description": "Port A2 is a high-sink I/O that also serves as the HSE oscillator input, with alternates USART_TX and SPI_MISO."
},
{
"number": "6",
"name": "PA3",
"type": "bidirectional",
"description": "Port A3 is a high-sink I/O that also serves as the HSE oscillator output, with alternates USART_RX and SPI_MOSI."
},
{
"number": "7",
"name": "VSS",
"type": "power_in",
"description": "Ground voltage, also used as ADC1 negative voltage reference and analog ground (VSS / VREF- / VSSA)."
},
{
"number": "8",
"name": "VDD",
"type": "power_in",
"description": "Digital supply voltage, also used as ADC1 positive voltage reference (VDD / VDDA / VREF+), with a 1.65 to 3.6 V operating supply range."
},
{
"number": "9",
"name": "PD0",
"type": "bidirectional",
"description": "Port D0 is a high-sink I/O that also provides Timer 3 channel 2, ADC1_TRIG, ADC1 input 22 and comparator positive inputs."
},
{
"number": "10",
"name": "PB0",
"type": "bidirectional",
"description": "Port B0 is a high-sink I/O with a pull-up applied during reset, which is then input floating after reset release, and provides Timer 2 channel 1 and ADC1 input 18."
},
{
"number": "11",
"name": "PB1",
"type": "bidirectional",
"description": "Port B1 is a high-sink I/O that also provides Timer 3 channel 1, ADC1 input 17 and comparator 1 positive input."
},
{
"number": "12",
"name": "PB2",
"type": "bidirectional",
"description": "Port B2 is a high-sink I/O that also provides Timer 2 channel 2, ADC1 input 16 and comparator 1 positive input."
},
{
"number": "13",
"name": "PB3",
"type": "bidirectional",
"description": "Port B3 is a high-sink I/O that also provides Timer 2 external trigger, ADC1 input 15, RTC alarm and comparator 1 positive input."
},
{
"number": "14",
"name": "PB4",
"type": "bidirectional",
"description": "Port B4 is a high-sink I/O with a pull-up applied during reset, which is then input floating after reset release, and provides SPI1 master/slave select, ADC1 input 14 and comparator 1 positive input."
},
{
"number": "15",
"name": "PB5",
"type": "bidirectional",
"description": "Port B5 is a high-sink I/O that also provides SPI clock, ADC1 input 13 and comparator 1 positive input."
},
{
"number": "16",
"name": "PB6",
"type": "bidirectional",
"description": "Port B6 is a high-sink I/O that also provides SPI1 master out/slave in, ADC1 input 12 and comparator 1 positive input."
},
{
"number": "17",
"name": "PB7",
"type": "bidirectional",
"description": "Port B7 is a high-sink I/O that also provides SPI1 master in/slave out, ADC1 input 11 and comparator 1 positive input."
},
{
"number": "18",
"name": "PC0",
"type": "bidirectional",
"description": "Port C0 is a 5 V tolerant (FT) I/O with true open-drain capability that also serves as the I2C data line (I2C_SDA)."
},
{
"number": "19",
"name": "PC1",
"type": "bidirectional",
"description": "Port C1 is a 5 V tolerant (FT) I/O with true open-drain capability that also serves as the I2C clock line (I2C_SCL)."
},
{
"number": "20",
"name": "PC4",
"type": "bidirectional",
"description": "Port C4 is a high-sink I/O that also provides USART synchronous clock, I2C1_SMB, configurable clock output (CCO), ADC1 input 4 and comparator inputs."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
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"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: Pin-to-number assignments were read from the TSSOP20 column of Table 4 in a text extraction where th"
],
"pages_sent": 45,
"cost_usd": 0.0558,
"at": "2026-11-05T23:40:39"
},
"datasheet": {
"url": "https://www.st.com/resource/en/datasheet/stm8l151f2p6.pdf",
"pages": 123,
"sha256": "56a41f554888e763",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 20,
"described": 20,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
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"footprint": "viewers/footprint.html"
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"up": "Z",
"units": "mm",
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6.5,
1.2
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"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "97339947f3a7196470ec2f1d9f9b92bb2fc2ab66ad53be0cf105192585ef3c9a",
"checked": "2026-11-05",
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},
{
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"metadata": {
"specs": {
"Manufacturer": "STMicroelectronics",
"Package": "TSSOP-20",
"Category": "Embedded Processors & Controllers",
"Pins": "20"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "56a41f554888e76314e03bf1e81ca2335774482ba6feb28c9e423059866cc4b8",
"rows": [
{
"name": "External supply voltage (VDD, VDDA, VDDIO) VDD-VSS",
"symbol": "VDD-VSS",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 4,
"conditions": "",
"source_page": 54,
"source": "datasheet"
},
{
"name": "Total current into VDD power line (source)",
"symbol": "IVDD",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 80,
"conditions": "",
"source_page": 56,
"source": "datasheet"
},
{
"name": "Total current out of VSS ground line (sink)",
"symbol": "IVSS",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 80,
"conditions": "",
"source_page": 56,
"source": "datasheet"
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{
"name": "Output current sunk by any other I/O and control pin",
"symbol": "IIO",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 25,
"conditions": "",
"source_page": 56,
"source": "datasheet"
},
{
"name": "Output current sourced by any I/Os and control pin",
"symbol": "IIO",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": -25,
"conditions": "",
"source_page": 56,
"source": "datasheet"
},
{
"name": "Injected current on any other pin",
"symbol": "IINJ(PIN)",
"kind": "absolute_maximum",
"unit": "mA",
"min": -5,
"typ": null,
"max": 5,
"conditions": "",
"source_page": 56,
"source": "datasheet"
},
{
"name": "Total injected current (sum of all I/O and control pins)",
"symbol": "ΣIINJ(PIN)",
"kind": "absolute_maximum",
"unit": "mA",
"min": -25,
"typ": null,
"max": 25,
"conditions": "",
"source_page": 56,
"source": "datasheet"
},
{
"name": "Storage temperature range",
"symbol": "TSTG",
"kind": "absolute_maximum",
"unit": "°C",
"min": -65,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 56,
"source": "datasheet"
},
{
"name": "Maximum junction temperature",
"symbol": "TJ",
"kind": "absolute_maximum",
"unit": "°C",
"min": null,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 56,
"source": "datasheet"
},
{
"name": "System clock frequency",
"symbol": "fSYSCLK",
"kind": "recommended_operating",
"unit": "MHz",
"min": 0,
"typ": null,
"max": 16,
"conditions": "1.65 V ≤ VDD < 3.6 V",
"source_page": 57,
"source": "datasheet"
},
{
"name": "Standard operating voltage",
"symbol": "VDD",
"kind": "recommended_operating",
"unit": "V",
"min": 1.65,
"typ": null,
"max": 3.6,
"conditions": "Without BOR (1.8 V at power-up)",
"source_page": 57,
"source": "datasheet"
},
{
"name": "Analog operating voltage",
"symbol": "VDDA",
"kind": "recommended_operating",
"unit": "V",
"min": 1.65,
"typ": null,
"max": 3.6,
"conditions": "ADC1 not used; must be at same potential as VDD",
"source_page": 57,
"source": "datasheet"
},
{
"name": "Analog operating voltage",
"symbol": "VDDA",
"kind": "recommended_operating",
"unit": "V",
"min": 1.8,
"typ": null,
"max": 3.6,
"conditions": "ADC1 used",
"source_page": 57,
"source": "datasheet"
},
{
"name": "Temperature range",
"symbol": "TA",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 85,
"conditions": "6 suffix version, 1.65 V ≤ VDD < 3.6 V",
"source_page": 57,
"source": "datasheet"
},
{
"name": "Junction temperature range",
"symbol": "TJ",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 105,
"conditions": "-40 °C ≤ TA < 85 °C, 6 suffix version",
"source_page": 57,
"source": "datasheet"
},
{
"name": "Power dissipation (TSSOP20)",
"symbol": "PD",
"kind": "recommended_operating",
"unit": "mW",
"min": null,
"typ": null,
"max": 181,
"conditions": "TA = 85 °C, 6 suffix",
"source_page": 57,
"source": "datasheet"
},
{
"name": "Power-down reset threshold",
"symbol": "VPDR",
"kind": "electrical",
"unit": "V",
"min": 1.3,
"typ": 1.5,
"max": 1.65,
"conditions": "Falling edge",
"source_page": 58,
"source": "datasheet"
},
{
"name": "Brown-out reset threshold 0 (falling edge)",
"symbol": "VBOR0",
"kind": "electrical",
"unit": "V",
"min": 1.66,
"typ": 1.7,
"max": 1.74,
"conditions": "Falling edge, BOR_TH[2:0]=000",
"source_page": 58,
"source": "datasheet"
},
{
"name": "Brown-out reset threshold 0 (rising edge)",
"symbol": "VBOR0",
"kind": "electrical",
"unit": "V",
"min": 1.69,
"typ": 1.75,
"max": 1.81,
"conditions": "Rising edge, BOR_TH[2:0]=000",
"source_page": 58,
"source": "datasheet"
},
{
"name": "Supply current in Run mode (code from RAM, HSI)",
"symbol": "IDD(RUN)",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 0.39,
"max": 0.49,
"conditions": "All peripherals OFF, fCPU = 125 kHz, max at 85 °C",
"source_page": 60,
"source": "datasheet"
},
{
"name": "Supply current in Run mode (code from RAM, HSI)",
"symbol": "IDD(RUN)",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 1.85,
"max": 2.12,
"conditions": "All peripherals OFF, fCPU = 16 MHz, max at 85 °C",
"source_page": 60,
"source": "datasheet"
},
{
"name": "Supply current in Run mode (code from Flash, HSI)",
"symbol": "IDD(RUN)",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 0.43,
"max": 0.56,
"conditions": "All peripherals OFF, fCPU = 125 kHz, max at 85 °C",
"source_page": 60,
"source": "datasheet"
},
{
"name": "Supply current in Run mode (code from Flash, HSI)",
"symbol": "IDD(RUN)",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 3.8,
"max": 4.75,
"conditions": "All peripherals OFF, fCPU = 16 MHz, max at 85 °C",
"source_page": 60,
"source": "datasheet"
},
{
"name": "Accuracy of HSI oscillator (factory calibrated)",
"symbol": "ACCHSI",
"kind": "tolerance",
"unit": "%",
"min": -1.5,
"typ": null,
"max": 1.5,
"conditions": "VDD = 3.0 V, 0 °C ≤ TA ≤ 55 °C",
"source_page": 75,
"source": "datasheet"
},
{
"name": "Accuracy of HSI oscillator (factory calibrated)",
"symbol": "ACCHSI",
"kind": "tolerance",
"unit": "%",
"min": -2.5,
"typ": null,
"max": 2,
"conditions": "VDD = 3.0 V, -10 °C ≤ TA ≤ 85 °C",
"source_page": 75,
"source": "datasheet"
},
{
"name": "LSI oscillator frequency",
"symbol": "fLSI",
"kind": "electrical",
"unit": "kHz",
"min": 26,
"typ": 38,
"max": 56,
"conditions": "VDD = 1.65 V to 3.6 V",
"source_page": 76,
"source": "datasheet"
},
{
"name": "LSI oscillator wakeup time",
"symbol": "tsu(LSI)",
"kind": "timing",
"unit": "µs",
"min": null,
"typ": null,
"max": 200,
"conditions": "",
"source_page": 76,
"source": "datasheet"
},
{
"name": "LSI oscillator frequency drift",
"symbol": "IDD(LSI)",
"kind": "tolerance",
"unit": "%",
"min": -12,
"typ": null,
"max": 11,
"conditions": "0 °C ≤ TA ≤ 85 °C",
"source_page": 76,
"source": "datasheet"
},
{
"name": "Operating voltage (all modes, read/write/erase)",
"symbol": "VDD",
"kind": "recommended_operating",
"unit": "V",
"min": 1.65,
"typ": null,
"max": 3.6,
"conditions": "fSYSCLK = 16 MHz",
"source_page": 78,
"source": "datasheet"
},
{
"name": "Programming time for 1 or 64 bytes (block) erase/write cycles",
"symbol": "tprog",
"kind": "timing",
"unit": "ms",
"min": null,
"typ": null,
"max": 6,
"conditions": "On programmed byte",
"source_page": 78,
"source": "datasheet"
},
{
"name": "Programming time for 1 to 64 bytes (block) write cycles",
"symbol": "tprog",
"kind": "timing",
"unit": "ms",
"min": null,
"typ": null,
"max": 3,
"conditions": "On erased byte",
"source_page": 78,
"source": "datasheet"
},
{
"name": "Data retention (program memory) after 10000 erase/write cycles",
"symbol": "tRET",
"kind": "electrical",
"unit": "years",
"min": 30,
"typ": null,
"max": null,
"conditions": "TA = -40 to +85 °C, TRET = +85 °C (3 and 6 suffix)",
"source_page": 78,
"source": "datasheet"
},
{
"name": "Erase/write cycles (program memory)",
"symbol": "NRW",
"kind": "electrical",
"unit": "kcycles",
"min": 10,
"typ": null,
"max": null,
"conditions": "TA = -40 to +85 °C (3 and 6 suffix)",
"source_page": 78,
"source": "datasheet"
},
{
"name": "Minimum supply voltage without losing RAM data",
"symbol": "VRM",
"kind": "electrical",
"unit": "V",
"min": 1.65,
"typ": null,
"max": null,
"conditions": "Halt mode (or Reset)",
"source_page": 78,
"source": "datasheet"
},
{
"name": "Input leakage current, high sink I/Os",
"symbol": "Ilkg",
"kind": "electrical",
"unit": "nA",
"min": null,
"typ": null,
"max": 50,
"conditions": "VSS ≤ VIN ≤ VDD",
"source_page": 80,
"source": "datasheet"
},
{
"name": "Input leakage current, true open drain I/Os",
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