component
STM32H503CBT6
Public Made by Adomby adom
STMICROELECTRONICS Global Sourcing Parts, LQFP-48(7x7). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "stm32h503cbt6",
"title": "STM32H503CBT6",
"brief": "STMICROELECTRONICS Global Sourcing Parts, LQFP-48(7x7). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
"component",
"global sourcing parts",
"stm32h503cbt6",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "STM32H503CBT6",
"manufacturer": "STMICROELECTRONICS",
"package": "LQFP-48(7x7)",
"pin_count": 48,
"category": "Global Sourcing Parts",
"subcategory": "Global Sourcing Parts",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590904797077979136",
"parts": {
"symbol": "stm32h503cbt6.kicad_sym",
"footprint": "stm32h503cbt6.kicad_mod",
"model_3d": "stm32h503cbt6-hero.glb",
"model_3d_plain": "stm32h503cbt6-etched.glb",
"model_3d_step": "stm32h503cbt6-etched.step",
"model_3d_step_plain": "stm32h503cbt6.step",
"lbr": "stm32h503cbt6.lbr"
},
"distributor_links": {
"lcsc": "C17700273",
"digikey": "497-STM32H503CBT6-ND"
},
"distributor_check": {
"checked_at": "2026-10-18T09:39:22Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "497-STM32H503CBT6-ND",
"status": "found"
},
"mouser": {
"pn": null,
"status": "quota"
}
},
"pins": [
{
"number": "1",
"name": "VBAT",
"type": "power_in",
"description": "Backup-domain supply for the RTC and backup registers, with a backup operating voltage of 1.2 V to 3.6 V."
},
{
"number": "2",
"name": "PC13",
"type": "bidirectional",
"description": "5 V-tolerant (FT_t) GPIO powered through the VSW power switch and functional in VBAT mode with tamper function; output speed must not exceed 2 MHz at 30 pF and it must not be used as a current source."
},
{
"number": "3",
"name": "PC14-OSC32_IN",
"type": "bidirectional",
"description": "5 V-tolerant GPIO powered through the VSW power switch, limited to 2 MHz output speed at 30 pF with no current sourcing; also the LSE oscillator input OSC32_IN."
},
{
"number": "4",
"name": "PC15-OSC32_OUT",
"type": "bidirectional",
"description": "5 V-tolerant GPIO powered through the VSW power switch, limited to 2 MHz output speed at 30 pF with no current sourcing; also the LSE oscillator output OSC32_OUT."
},
{
"number": "5",
"name": "PH0-OSC_IN",
"type": "bidirectional",
"description": "5 V-tolerant (FT) GPIO; also the HSE oscillator input OSC_IN."
},
{
"number": "6",
"name": "PH1-OSC_OUT",
"type": "bidirectional",
"description": "5 V-tolerant (FT) GPIO; also the HSE oscillator output OSC_OUT."
},
{
"number": "7",
"name": "NRST",
"type": "bidirectional",
"description": "Bidirectional reset pin with an embedded weak pull-up resistor."
},
{
"number": "8",
"name": "VSSA",
"type": "power_in",
"description": "Analog ground pin, shared with the VREF- function in the LQFP48 pinout."
},
{
"number": "9",
"name": "VDDA",
"type": "power_in",
"description": "Analog supply, shared with the VREF+ function; minimum 1.62 V when ADC or COMP is used, 1.8 V with DAC, 2.0 V with OPAMP, up to 3.6 V."
},
{
"number": "10",
"name": "PA0",
"type": "bidirectional",
"description": "5 V-tolerant I/O with analog switch supplied by VDDA and HSLV option; also ADC1_INP0 analog input and WKUP1 wakeup."
},
{
"number": "11",
"name": "PA1",
"type": "bidirectional",
"description": "5 V-tolerant I/O with analog switch supplied by VDDA and HSLV option; also ADC1_INP1 analog input."
},
{
"number": "12",
"name": "PA2",
"type": "bidirectional",
"description": "5 V-tolerant I/O with analog switch supplied by VDDA and HSLV option; also ADC1_INP14 analog input and WKUP2 wakeup."
},
{
"number": "13",
"name": "PA3",
"type": "bidirectional",
"description": "5 V-tolerant I/O with analog switch supplied by VDDA and HSLV option; also ADC1_INP15 analog input."
},
{
"number": "14",
"name": "PA4",
"type": "bidirectional",
"description": "3.6 V-tolerant (TT) I/O with analog switch supplied by VDDA and HSLV option; also ADC1_INP18 and DAC1_OUT1."
},
{
"number": "15",
"name": "PA5",
"type": "bidirectional",
"description": "3.6 V-tolerant (TT) I/O with analog switch supplied by VDDA and HSLV option; also ADC1_INP19, DAC1_OUT2 and COMP1_INM3."
},
{
"number": "16",
"name": "PA6",
"type": "bidirectional",
"description": "5 V-tolerant I/O with analog switch supplied by VDDA and HSLV option; also ADC1_INP3 analog input."
},
{
"number": "17",
"name": "PA7",
"type": "bidirectional",
"description": "3.6 V-tolerant (TT) I/O with analog switch supplied by VDDA and HSLV option; also ADC1_INP7 and OPAMP1_VOUT."
},
{
"number": "18",
"name": "PB0",
"type": "bidirectional",
"description": "5 V-tolerant I/O with analog switch supplied by VDDA and HSLV option; also ADC1_INP9, OPAMP1_VINP and COMP1_INP2."
},
{
"number": "19",
"name": "PB1",
"type": "bidirectional",
"description": "5 V-tolerant I/O with analog switch supplied by VDDA and HSLV option; also ADC1_INP5, OPAMP1_VINM and COMP1_INM2."
},
{
"number": "20",
"name": "PB2",
"type": "bidirectional",
"description": "5 V-tolerant I/O with analog switch supplied by VDDA and HSLV option; also COMP1_INP3 and LSCO."
},
{
"number": "21",
"name": "PB10",
"type": "bidirectional",
"description": "5 V-tolerant I/O, Fm+ capable, with HSLV option."
},
{
"number": "22",
"name": "VCAP",
"type": "power_in",
"description": "Connection for the external capacitor stabilizing the embedded LDO; when two VCAP pins are present, each must be connected to a 2.2 µF (typical) capacitor."
},
{
"number": "23",
"name": "VSS",
"type": "power_in",
"description": "Ground reference; all voltages are referenced to VSS."
},
{
"number": "24",
"name": "VDD",
"type": "power_in",
"description": "Digital supply, 1.71 V to 3.6 V with HSLV=0 or 1.71 V to 2.7 V with HSLV=1."
},
{
"number": "25",
"name": "PB12",
"type": "bidirectional",
"description": "5 V-tolerant I/O with HSLV option; also TIM1_BKIN and FDCAN1_RX alternate functions."
},
{
"number": "26",
"name": "PB13",
"type": "bidirectional",
"description": "5 V-tolerant I/O, Fm+ capable, with HSLV option; also LPUART1_CTS, FDCAN1_TX and I3C2_SDA."
},
{
"number": "27",
"name": "PB14",
"type": "bidirectional",
"description": "5 V-tolerant I/O with HSLV option; also USART1_TX and LPUART1_RTS."
},
{
"number": "28",
"name": "PB15",
"type": "bidirectional",
"description": "5 V-tolerant I/O with analog switch supplied by VDDA and HSLV option; also PVD_IN and COMP1_OUT."
},
{
"number": "29",
"name": "PA8",
"type": "bidirectional",
"description": "5 V-tolerant I/O with HSLV option; also MCO1 and USB_SOF; supplied by VDD on this package because no VDDIO2 pin is provided."
},
{
"number": "30",
"name": "PA9",
"type": "bidirectional",
"description": "5 V-tolerant I/O with HSLV option; also TRACED2 and USART1_TX; supplied by VDD on this package because no VDDIO2 pin is provided."
},
{
"number": "31",
"name": "PA10",
"type": "bidirectional",
"description": "5 V-tolerant I/O with HSLV option; also USART1_RX and LPUART1_RX."
},
{
"number": "32",
"name": "PA11",
"type": "bidirectional",
"description": "5 V-tolerant I/O with HSLV option; also USB_DM and FDCAN1_RX."
},
{
"number": "33",
"name": "PA12",
"type": "bidirectional",
"description": "5 V-tolerant I/O with HSLV option; also USB_DP and FDCAN1_TX."
},
{
"number": "34",
"name": "PA13",
"type": "bidirectional",
"description": "5 V-tolerant I/O with HSLV option; after reset it is JTMS/SWDIO with the internal pull-up activated."
},
{
"number": "35",
"name": "VSS",
"type": "power_in",
"description": "Ground reference; all voltages are referenced to VSS."
},
{
"number": "36",
"name": "VDD",
"type": "power_in",
"description": "Digital supply, 1.71 V to 3.6 V with HSLV=0 or 1.71 V to 2.7 V with HSLV=1."
},
{
"number": "37",
"name": "PA14",
"type": "bidirectional",
"description": "5 V-tolerant I/O with HSLV option; after reset it is JTCK/SWCLK with the internal pull-down activated."
},
{
"number": "38",
"name": "PA15",
"type": "bidirectional",
"description": "5 V-tolerant I/O with HSLV option, supplied by VDD on this package; after reset it is JTDI with the internal pull-up activated."
},
{
"number": "39",
"name": "PB3",
"type": "bidirectional",
"description": "5 V-tolerant I/O, Fm+ capable, with HSLV option; after reset it is JTDO/TRACESWO, supplied by VDD on this package."
},
{
"number": "40",
"name": "PB4",
"type": "bidirectional",
"description": "5 V-tolerant I/O, Fm+ capable, with HSLV option; after reset it is NJTRST with the internal pull-up activated."
},
{
"number": "41",
"name": "PB5",
"type": "bidirectional",
"description": "5 V-tolerant I/O, Fm+ capable, with HSLV option; also I3C1_SDA and LPTIM1_IN1."
},
{
"number": "42",
"name": "PB6",
"type": "bidirectional",
"description": "5 V-tolerant I/O, Fm+ capable, with HSLV option; also LPUART1_TX and USART1_TX."
},
{
"number": "43",
"name": "PB7",
"type": "bidirectional",
"description": "5 V-tolerant I/O, Fm+ capable, with HSLV option; also WKUP5, LPUART1_RX and USART1_RX."
},
{
"number": "44",
"name": "BOOT0",
"type": "input",
"description": "Dedicated boot pin; input voltage must not exceed min(min(VDD, VDDA, VDDIO2)+4.0 V, 6.0 V)."
},
{
"number": "45",
"name": "PB8",
"type": "bidirectional",
"description": "5 V-tolerant I/O, Fm+ capable, with HSLV option; also I3C1_SCL, I2C1_SCL and FDCAN1_RX."
},
{
"number": "46",
"name": "VCAP",
"type": "power_in",
"description": "Connection for the external capacitor stabilizing the embedded LDO; when two VCAP pins are present, each must be connected to a 2.2 µF (typical) capacitor."
},
{
"number": "47",
"name": "VSS",
"type": "power_in",
"description": "Ground reference; all voltages are referenced to VSS."
},
{
"number": "48",
"name": "VDD",
"type": "power_in",
"description": "Digital supply, 1.71 V to 3.6 V with HSLV=0 or 1.71 V to 2.7 V with HSLV=1."
}
],
"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: Table 9 defines _s as I/O supplied only by VDDIO2, but LQFP48 has no VDDIO2 pin. The Figure 11 note ; The pin map was taken from the text-extracted Table 10 (pp.52-63), using the LQFP48 column (third of; Pin descriptions use the I/O structure legend in Table 9 (FT, TT, _a, _f, _h, _s, _t) and the footno"
],
"pages_sent": 67,
"cost_usd": 0.3146,
"at": "2026-10-18T09:37:31"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590904797077979136",
"pages": 174,
"sha256": "87d98e42d910eabb",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 48,
"described": 48,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "stm32h503cbt6.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
9,
9,
1.5
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "9dea352d93177c2904afd7d7b68ea8855ce1ab691f69f8b3e13655600514b6bf",
"checked": "2026-10-18",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "stm32h503cbt6-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
9,
9,
1.5
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "60805de7505e3cd372a3dc5b9b8933b677c37928907da32568675991f5739a5f",
"checked": "2026-10-18",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "STMICROELECTRONICS",
"Package": "LQFP-48(7x7)",
"Category": "Global Sourcing Parts",
"Pins": "48"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "87d98e42d910eabb4938fb1a06e930c74232ab7d6361125eace9cd0d2396bb7b",
"rows": [
{
"name": "Supply voltage VDDx to VSS (external main supply incl. VDD, VDDA, VDDIO2, VBAT)",
"symbol": "VDDx - VSS",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 4,
"conditions": "External main supply voltage (including VDD, VDDA, VDDIO2, and VBAT)",
"source_page": 73,
"source": "datasheet"
},
{
"name": "I/O supply voltage VDDIOx to VSS, HSLV = 0",
"symbol": "VDDIOx - VSS",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 4,
"conditions": "I/O supply when HSLV = 0",
"source_page": 73,
"source": "datasheet"
},
{
"name": "I/O supply voltage VDDIOx to VSS, HSLV = 1",
"symbol": "VDDIOx - VSS",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 2.75,
"conditions": "I/O supply when HSLV = 1",
"source_page": 73,
"source": "datasheet"
},
{
"name": "Input voltage on FT_xxx pins",
"symbol": "VIN",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": null,
"conditions": "Max printed as formula min(min(VDD, VDDA, VDDIO2) + 4.0, 6.0 V); not a fixed number",
"source_page": 74,
"source": "datasheet"
},
{
"name": "Input voltage on FT_t in VBAT mode",
"symbol": "VIN",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": null,
"conditions": "Max printed as formula min(min(VBAT, VDDA, VDDIO2) + 4.0, 6.0 V); not a fixed number",
"source_page": 74,
"source": "datasheet"
},
{
"name": "Input voltage on TT_xx pins",
"symbol": "VIN",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 4,
"conditions": "TT_xx pins",
"source_page": 74,
"source": "datasheet"
},
{
"name": "Input voltage on BOOT0 pin",
"symbol": "VIN",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": null,
"conditions": "Max printed as formula min(min(VDD, VDDA, VDDIO2) + 4.0, 6.0 V); not a fixed number",
"source_page": 74,
"source": "datasheet"
},
{
"name": "Input voltage on any other pins",
"symbol": "VIN",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 4,
"conditions": "Any other pins",
"source_page": 74,
"source": "datasheet"
},
{
"name": "Total current into sum of all VDD power lines (source)",
"symbol": "∑IVDD",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 200,
"conditions": "Source",
"source_page": 74,
"source": "datasheet"
},
{
"name": "Total current out of sum of all VSS ground lines (sink)",
"symbol": "∑IVSS",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 200,
"conditions": "Sink",
"source_page": 74,
"source": "datasheet"
},
{
"name": "Output current sunk/sourced by any I/O and control pin",
"symbol": "IIO(PIN)",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 20,
"conditions": "Any I/O and control pin",
"source_page": 74,
"source": "datasheet"
},
{
"name": "Total output current sunk by sum of all I/Os and control pins",
"symbol": "∑IIO(PIN)",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 140,
"conditions": "Sunk",
"source_page": 74,
"source": "datasheet"
},
{
"name": "Total output current sourced by sum of all I/Os and control pins",
"symbol": "∑IIO(PIN)",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 140,
"conditions": "Sourced",
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"source": "datasheet"
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{
"name": "Injected current on FT_xxx, TT_xx, NRST pins",
"symbol": "IINJ(PIN)",
"kind": "absolute_maximum",
"unit": "mA",
"min": -5,
"typ": null,
"max": 0,
"conditions": "Injected current on FT_xxx, TT_xx, NRST pins",
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"source": "datasheet"
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{
"name": "Storage temperature range",
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"unit": "°C",
"min": -65,
"typ": null,
"max": 150,
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{
"name": "Maximum junction temperature",
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"unit": "°C",
"min": null,
"typ": null,
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"conditions": "Limited to 105 °C in the VOS0 voltage range",
"source_page": 75,
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{
"name": "Standard operating voltage VDD, HSLV = 0",
"symbol": "VDD",
"kind": "recommended_operating",
"unit": "V",
"min": 1.71,
"typ": null,
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{
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"name": "Analog supply voltage VDDA, DAC used",
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"min": 1.8,
"typ": null,
"max": 3.6,
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{
"name": "Analog supply voltage VDDA, OPAMP used",
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"kind": "recommended_operating",
"unit": "V",
"min": 2,
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"max": 3.6,
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{
"name": "Analog supply voltage VDDA, ADC used",
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{
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{
"name": "Internal regulator ON, VOS1 core voltage",
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"min": 1.15,
"typ": 1.2,
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"source": "datasheet"
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{
"name": "Internal regulator ON, VOS2 core voltage",
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{
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"source": "datasheet"
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"name": "AHB clock frequency fHCLK, VOS0",
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"min": null,
"typ": null,
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"typ": null,
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{
"name": "Power dissipation, LQFP48, TA = 85 °C (suffix 6)",
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"min": null,
"typ": null,
"max": 831.79,
"conditions": "TA = 85 °C for suffix 6",
"source_page": 77,
"source": "datasheet"
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{
"name": "Power dissipation, LQFP48, TA = 105 °C (suffix 7)",
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"min": null,
"typ": null,
"max": 462.11,
"conditions": "TA = 105 °C for suffix 7",
"source_page": 77,
"source": "datasheet"
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{
"name": "Power dissipation, LQFP48, TA = 125 °C (suffix 7)",
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"min": null,
"typ": null,
"max": 92.42,
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"source": "datasheet"
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{
"name": "Ambient temperature, suffix 6 version",
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"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 85,
"conditions": "Maximum power dissipation",
"source_page": 77,
"source": "datasheet"
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"name": "Ambient temperature, suffix 7 version",
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"typ": null,
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"typ": null,
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"typ": null,
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"min": -40,
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{
"name": "External capacitor CEXT for LDO enabled",
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"min": null,
"typ": 2.2,
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"conditions": "Typical value, per VCAP pin when LDO enabled",
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"source": "datasheet"
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"name": "CEXT tolerance",
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{
"name": "Power-on/power-down reset threshold, rising edge",
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"min": 1.62,
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"source": "datasheet"
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"name": "HSE oscillator frequency",
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"min": 4,
"typ": null,
"max": 50,
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"name": "HSE current consumption during startup",
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{
"name": "LSE oscillator frequency maximum (external clock)",
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"min": null,
"typ": 32.768,
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"min": 47.5,
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"unit": "V",
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"source": "datasheet"
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