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STM32C552RET6 (LQFP-64(10x10)) — Symbol, Footprint IPC-7351B & 3D STEP Model

STM32C552RET6

STLQFP-64(10x10) · 64 Pins · Pitch 0.50mmIPC TOLERANCE VARIATION5.0 (0)
SYNCHRONIZED 4D CROSS-PROBE MODETouch or hover any pin to highlight concurrently across Symbol, Footprint and 3D
1. SYMBOL
U1 · STM32C552RET6 (LQFP-64(10x10))1PE22PC1333V34NC5PH0OSC IN (-6PH1OSC OUT -7NRST8PC09PC110PC211PC312VREF -13VREF+14PA015PA116PA217PA318VSS19VDD20PA421PA522PA623PA724PC425PC526PB027PB128PB229PB1030VCAP31VSS32VDD64VDD63VSS62PB961PB860PH2BOOT0 -59PB758PB657PB556PB4(NJTRST)55PB3(JTDO/ TR54PD253PC1252PC1151PC1050PA15(JTDI)49PA14(JTCK/ S48VDD47VSS46PA13(JTMS/ S45PA1244PA1143PA1042PA941PA840PC939PC838PC737PC636PB1535PB1434PB1333PB12Grid Pitch = 2.54mm (IEEE-315)-17.8-12.7-7.6-2.52.57.612.717.845.740.635.630.525.420.315.210.25.10-5.1-10.2-15.2-20.3-25.4-30.5-35.6-40.6-45.7mm
2. 2D FOOTPRINT
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364E=10.00mm · Pitch e=0.50mmD=10.00mm-9-7-5-3-11357997531-1-3-5-7-9mm
3. 3D CAD MODEL
Package Body: 10.00mm × 10.00mm · Pitch: 0.50mm · Ruler Step: 1.00mmSynced <100ms

Synchronized Pinout (Symbol / 2D / 3D) (64/64)

Touch or hover any pin to highlight concurrently across Symbol, Footprint and 3D
PinSymbolTypeFunction (EN)
1PE2I/OMultiplexed I/O & Peripheral Pin PE2 (SPI)
2PC13I/OMultiplexed I/O & Peripheral Pin PC13 (RTC/CLK)
33V3Power3.3V Main Power Supply Rail (3.0V ~ 3.6V)
4NCNCNo Connect (Leave Floating)
5PH0OSC IN (- PH0)_I/OMultiplexed I/O & Peripheral Pin PH0OSC IN (- PH0)_ (I2C, RTC/CLK)
6PH1OSC OUT - (PH1_)I/OMultiplexed I/O & Peripheral Pin PH1OSC OUT - (PH1_) (I2C, RTC/CLK)
7NRSTISystem Enable & Hardware Reset (NRST)
8PC0I/OMultiplexed I/O & Peripheral Pin PC0 (SPI, ADC)
9PC1I/OMultiplexed I/O & Peripheral Pin PC1 (SPI, ADC)
10PC2I/OMultiplexed I/O & Peripheral Pin PC2 (ADC)
11PC3I/OMultiplexed I/O & Peripheral Pin PC3 (SPI, ADC)
12VREF -AnalogMultiplexed I/O & Peripheral Pin VREF - (General)
13VREF+AnalogMultiplexed I/O & Peripheral Pin VREF+ (General)
14PA0I/OMultiplexed I/O & Peripheral Pin PA0 (UART, SPI, ADC)
15PA1I/OMultiplexed I/O & Peripheral Pin PA1 (UART, ADC)
16PA2I/OMultiplexed I/O & Peripheral Pin PA2 (ADC)
17PA3I/OMultiplexed I/O & Peripheral Pin PA3 (SPI, ADC)
18VSSGNDGround Reference Pin (VSS)
19VDDPowerPower Supply Input (VDD — 3.3V VDD (Max 4.0V))
20PA4I/OMultiplexed I/O & Peripheral Pin PA4 (SPI, ADC, DAC)
21PA5I/OMultiplexed I/O & Peripheral Pin PA5 (UART, SPI, ADC, PWM)
22PA6I/OMultiplexed I/O & Peripheral Pin PA6 (UART, SPI, ADC, PWM)
23PA7I/OMultiplexed I/O & Peripheral Pin PA7 (UART, SPI, ADC)
24PC4I/OMultiplexed I/O & Peripheral Pin PC4 (ADC)
25PC5I/OMultiplexed I/O & Peripheral Pin PC5 (ADC)
26PB0I/OMultiplexed I/O & Peripheral Pin PB0 (UART, SPI, ADC, PWM)
27PB1I/OMultiplexed I/O & Peripheral Pin PB1 (UART, SPI, ADC, PWM)
28PB2I/OMultiplexed I/O & Peripheral Pin PB2 (SPI, ADC, RTC/CLK)
29PB10I/OMultiplexed I/O & Peripheral Pin PB10 (SPI, I2C, PWM)
30VCAPI/OMultiplexed I/O & Peripheral Pin VCAP (General)
31VSSGNDGround Reference Pin (VSS)
32VDDPowerPower Supply Input (VDD — 3.3V VDD (Max 4.0V))
33PB12I/OMultiplexed I/O & Peripheral Pin PB12 (I2C)
34PB13I/OMultiplexed I/O & Peripheral Pin PB13 (UART, SPI, I2C)
35PB14I/OMultiplexed I/O & Peripheral Pin PB14 (UART, SPI)
36PB15I/OMultiplexed I/O & Peripheral Pin PB15 (UART, SPI, PWM, RTC/CLK)
37PC6I/OMultiplexed I/O & Peripheral Pin PC6 (PWM)
38PC7I/OMultiplexed I/O & Peripheral Pin PC7 (PWM)
39PC8I/OMultiplexed I/O & Peripheral Pin PC8 (UART)
40PC9I/OMultiplexed I/O & Peripheral Pin PC9 (UART, I2C, RTC/CLK)
41PA8I/OMultiplexed I/O & Peripheral Pin PA8 (SPI, I2C, PWM, RTC/CLK)
42PA9I/OMultiplexed I/O & Peripheral Pin PA9 (SPI, I2C, PWM, RTC/CLK)
43PA10I/OMultiplexed I/O & Peripheral Pin PA10 (General)
44PA11I/OMultiplexed I/O & Peripheral Pin PA11 (USB, UART, SPI)
45PA12I/OMultiplexed I/O & Peripheral Pin PA12 (USB, UART, SPI, I2C)
46PA13(JTMS/ SWDIO)I/OMultiplexed I/O & Peripheral Pin PA13(JTMS/ SWDIO) (SWD/JTAG)
47VSSGNDGround Reference Pin (VSS)
48VDDPowerPower Supply Input (VDD — 3.3V VDD (Max 4.0V))
49PA14(JTCK/ SWCLK)I/OMultiplexed I/O & Peripheral Pin PA14(JTCK/ SWCLK) (SWD/JTAG)
50PA15(JTDI)I/OMultiplexed I/O & Peripheral Pin PA15(JTDI) (UART, SPI, SWD/JTAG)
51PC10I/OMultiplexed I/O & Peripheral Pin PC10 (SPI, I2C)
52PC11I/OMultiplexed I/O & Peripheral Pin PC11 (UART, I2C)
53PC12I/OMultiplexed I/O & Peripheral Pin PC12 (UART, SPI)
54PD2I/OMultiplexed I/O & Peripheral Pin PD2 (UART)
55PB3(JTDO/ TRACESWO)I/OMultiplexed I/O & Peripheral Pin PB3(JTDO/ TRACESWO) (SPI, I2C, SWD/JTAG)
56PB4(NJTRST)I/OMultiplexed I/O & Peripheral Pin PB4(NJTRST) (UART, SPI, I2C, PWM, SWD/JTAG)
57PB5I/OMultiplexed I/O & Peripheral Pin PB5 (UART, SPI, I2C, PWM)
58PB6I/OMultiplexed I/O & Peripheral Pin PB6 (UART, SPI, I2C)
59PB7I/OMultiplexed I/O & Peripheral Pin PB7 (UART, SPI, I2C)
60PH2BOOT0 -I/OMultiplexed I/O & Peripheral Pin PH2BOOT0 - (CAN, RTC/CLK)
61PB8I/OMultiplexed I/O & Peripheral Pin PB8 (I2C)
62PB9I/OMultiplexed I/O & Peripheral Pin PB9 (SPI, I2C)
63VSSGNDGround Reference Pin (VSS)
64VDDPowerPower Supply Input (VDD — 3.3V VDD (Max 4.0V))
PIN 1 PE2
I/O
Multiplexed I/O & Peripheral Pin PE2 (SPI)
Design note: Alt: TRACECLK LPTIM1 IN2 SCK/I2S3, EVE_NTO, SPI3_CKUT_ ,
IPC-7351B Solder Density & Span C/G/Z Tuner

Live Embedded Datasheet PDF & Technical Drawing Gallery (6 Standard Drawings + 10 Extracted Figures)

Read the original datasheet PDF directly or click any drawing to view fullscreen
Open PDF in New Window ↗Read Datasheet PDF (.pdf)
PDF VIEWEROfficial Datasheet Document: STM32C552RET6 (ST · LQFP-64(10x10))
Scroll, search text (Ctrl+F), or expand directly inside the embedded PDF reader below
1. Realistic 3D PackageREPRESENTATIVE
STM32C552RET6 (LQFP-64(10x10)) - 1. Realistic 3D Package
Detailed solid 3D bodyExpand ›
2. Standard Pinout (Top View)CLEANROOM PINOUT
STM32C552RET6 (LQFP-64(10x10)) - 2. Standard Pinout (Top View)
True package pinout (64 pins)Expand ›
3. Original Datasheet PinoutPDF PINOUT
STM32C552RET6 (LQFP-64(10x10)) - 3. Original Datasheet Pinout
Uncropped datasheet pin diagramExpand ›
4. Package Dimensions (D×E×A)PACKAGE DIMENSIONS
STM32C552RET6 (LQFP-64(10x10)) - 4. Package Dimensions (D×E×A)
LQFP-64(10x10) · 10.00×10.00mm · Pitch 0.50mmExpand ›
5. Recommended Land PatternLAND PATTERN
STM32C552RET6 (LQFP-64(10x10)) - 5. Recommended Land Pattern
IPC-7351B Footprint (64 Pads)Expand ›
6. Application SchematicSCHEMATIC
STM32C552RET6 (LQFP-64(10x10)) - 6. Application Schematic
Typical Application SchematicExpand ›
Original Datasheet Pinouts & Technical Drawings (10 figures · Page 1/1)
Showing 1–10 of 10 uncropped original figures for STM32C552
P36 · p36_fig01EXACT PACKAGE
STM32C552RET6 (LQFP-64(10x10)) — Figure 7. LQFP64 pinout Package top view
Figure 7. LQFP64 pinout Package top view
P109 · p109_fig01EXACT PACKAGE
STM32C552RET6 (LQFP-64(10x10)) — Figure 44. LQFP64 - Outline(15.)
Figure 44. LQFP64 - Outline(15.)
P110 · p110_fig01EXACT PACKAGE
STM32C552RET6 (LQFP-64(10x10)) — A1(12.) 0.05 - 0.15 0.0020 - 0.0059
A1(12.) 0.05 - 0.15 0.0020 - 0.0059
P10 · p10_fig011045×1203px
STM32C552RET6 (LQFP-64(10x10)) — Figure 2. STM32C55xxx power supply overview
Figure 2. STM32C55xxx power supply overview
P36 · p36_fig021172×1190px
STM32C552RET6 (LQFP-64(10x10)) — Figure 8. LQFP80 pinout Package top view PH2-BOOT0 76
Figure 8. LQFP80 pinout Package top view PH2-BOOT0 76
P51 · p51_fig011377×1137px
STM32C552RET6 (LQFP-64(10x10)) — Figure 12. STM32C55xxx power supply scheme
Figure 12. STM32C55xxx power supply scheme
P63 · p63_fig011431×512px
STM32C552RET6 (LQFP-64(10x10)) — Figure 16. Typical application with a 8 MHz crystal
Figure 16. Typical application with a 8 MHz crystal
P82 · p82_fig01921×756px
STM32C552RET6 (LQFP-64(10x10)) — Figure 26. ADC accuracy characteristics
Figure 26. ADC accuracy characteristics
P82 · p82_fig021627×607px
STM32C552RET6 (LQFP-64(10x10)) — Figure 27. Typical connection diagram when using the ADC with FT/TT pins featuring analog switch function
Figure 27. Typical connection diagram when using the ADC with FT/TT pins featuring analog switch function
P112 · p112_fig011458×1476px
STM32C552RET6 (LQFP-64(10x10)) — Figure 45. LQFP80 - Outline(15.)
Figure 45. LQFP80 - Outline(15.)

Technical Specifications & Part Details (STM32C552RET6)

Summary of electrical parameters, mechanical dimensions, voltage range and peripheral interfaces from Datasheet (EN)
Embedded Microcontroller Unit (MCU)
Detailed Overview:STM32C552RET6 (LQFP-64(10x10)) is a 64-pin embedded microcontroller unit (mcu) featuring a 10.00 × 10.00 × 1.60 mm mechanical envelope (lead pitch e = 0.50 mm). Rated for 2.7 V to 3.6 V supply operation across -40°C ~ +85°C (Industrial Grade) with integrated USB, UART, SPI, I2C, I2S, ADC, DAC, IrDA, CAN, PWM, RTC/CLK, SWD/JTAG interfaces.
Operating Supply VoltageV_CC / V_DD
2.7 V to 3.6 V
Place 100nF + 10µF X7R decoupling capacitors < 2mm from supply pins
Ambient Operating TemperatureT_A
-40°C ~ +85°C (Industrial Grade)
Industrial temperature grade; T_J(max) = +125°C
Clock / RF Operating Frequencyf_CLK / f_RF
144 MHz
Extracted from authoritative PDF specification tables
Current & Power RatingI_OUT / I_CC
I_GPIO(max) = ±20 mA / pin | I_VDD(total) ≤ 150 mA
51 5V-tolerant (FT) pins detected
Package Envelope (D × E × A)D × E × A
10.00 × 10.00 × 1.60 mm (A1=0.10 mm)
Package family: LQFP (LQFP-64(10x10))
Pin Count & Lead PitchN / e
64 Pins | Pitch e = 0.50 mm (19.7 mil)
Normalized to Center-to-Center Span C per IPC-7351B
Integrated Peripheral InterfacesBuses
USB, UART, SPI, I2C, I2S, ADC, DAC, IrDA, CAN, PWM, RTC/CLK, SWD/JTAG
Cross-linked with 4D Pinout & Schematic Symbol
Reflow & Moisture SensitivityIPC / MSL
IPC-7351B Level B | J-STD-020 (Peak 260°C) | MSL-3
60% windowed solder paste stencil on thermal EPAD
Engineering Safety Alert: Boot Strapping Pin Alert (PH2BOOT0 -): Do not force conflicting external pull-ups/pull-downs during POR reset.
Engineering Safety Alert: Connect exposed thermal pad (if present) to internal ground plane via 0.3mm stitched thermal vias.

5-Point Standards Verification

Automated compliance checks prior to export
5/5 PASS
IEEE-315 Symbol64 auto-grouped pins
OK
IPC-7351B Land Pattern64 pads · Pitch 0.50mm
OK
IPC-7525 60% Solder PasteReflow 1:1 Standard
OK
DFM Rules JLCPCB / PCBWayMin pad clearance: 0.25mm
OK
3D STEP AP214 & GLBAligned coordinate origin (0,0,0)
OK

Hardware Verification & Community Engineering Reviews

Summary of electrical parameters, mechanical dimensions, voltage range and peripheral interfaces from Datasheet
5.00 PCB Verified

Mechanical Dimensions & Land Pattern (LQFP-64(10x10))

Extracted from Datasheet & IPC-7351B Normalized
mm
Package Body (D × E)Nominal
10.00 × 10.00 mm
Height (A) & Pitch (e)IPC-7351B
A=1.60mm · e=0.50mm
Pad Size (W × L)Level B
0.30 × 1.25 mm
Pins / Total PadsTopology
64P / 64Pad (QUAD_ROW)

Recommended Companion BOM & Drop-In Equivalents

Passive external components per reference schematic and 1:1 pin-compatible alternatives
DFM READY
Designator / Replacement MPNValue / PackageFunction & PCB Layout Rule
N/A
BOM
Per application circuit
LQFP-64(10x10)
Size power & signal trace widths for rated load current following IPC-2221 clearance rules.

Technical Frequently Asked Questions (FAQ) — STM32C552RET6 (LQFP-64(10x10))

Quick answers covering Pinout, IPC-7351B Land Pattern dimensions, and CAD export formats
IPC-7351B / IEEE-315

What is the Pinout and operating voltage specification of STM32C552RET6 (LQFP-64(10x10))?

Manufactured by ST, the STM32C552RET6 is housed in a LQFP-64(10x10) package with 64 pins and a 0.50 mm lead pitch, supporting a VCC supply range of 2.7 V to 3.6 V. Key pins include: 1 (PE2: Multiplexed I/O & Peripheral Pin PE2 (SPI)), 2 (PC13: Multiplexed I/O & Peripheral Pin PC13 (RTC/CLK)), 3 (3V3: 3.3V Main Power Supply Rail (3.0V ~ 3.6V)), 4 (NC: No Connect (Leave Floating)), 5 (PH0OSC IN (- PH0)_: Multiplexed I/O & Peripheral Pin PH0OSC IN (- PH0)_ (I2C, RTC/CLK)), 6 (PH1OSC OUT - (PH1_): Multiplexed I/O & Peripheral Pin PH1OSC OUT - (PH1_) (I2C, RTC/CLK)).

What are the IPC-7351B PCB Footprint dimensions for STM32C552RET6?

Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), STM32C552RET6 (LQFP-64(10x10)) has a nominal body envelope of 10.00 × 10.00 mm, pitch e = 0.50 mm, and 64 copper pads.

Where can I download KiCad (.kicad_mod, .kicad_sym), Fusion 360 (.lbr), and 3D STEP models for STM32C552RET6?

You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for STM32C552RET6 (ST, LQFP-64(10x10)) directly on this page, including KiCad 8 Footprints (.kicad_mod), Schematic Symbols (.kicad_sym), Autodesk Fusion 360 / Eagle (.lbr), and 3D STEP AP214 / WebGL GLB models.

Static Reference Appendix: Pinout Table (64 pins) & STM32C552 Family VariantsExpand static table
Pin #Signal NameElectrical TypeFunctional Description & Design Notes
1PE2Digital_IOSignal terminal PE2 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI3_CKUT_. Supported peripheral buses: SPI.
2PC13Digital_IOSignal terminal PC13 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PC13. Supported peripheral buses: RTC/CLK.
33V3Power_In3.3V Main Power Supply Rail (3.0V ~ 3.6V)
4NCNo_ConnectNo Connect (Leave Floating)
5PH0OSC IN (- PH0)_Digital_IOSignal terminal PH0OSC IN (- PH0)_ (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: I2C1_SDAEVENTOUT. Supported peripheral buses: I2C, RTC/CLK.
6PH1OSC OUT - (PH1_)Digital_IOSignal terminal PH1OSC OUT - (PH1_) (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: I2C1_SCLEVENTOUT. Supported peripheral buses: I2C, RTC/CLK.
7NRSTDigital_IOActive-low hardware reset terminal (NRST): pulling this pin Low resets the processor core and peripherals.
8PC0Digital_IOSignal terminal PC0 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_RDYTIM16BKINEVE. Supported peripheral buses: SPI, ADC.
9PC1Digital_IOSignal terminal PC1 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_MOSI. Supported peripheral buses: SPI, ADC.
10PC2Digital_IOSignal terminal PC2 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PC2. Supported peripheral buses: ADC.
11PC3Digital_IOSignal terminal PC3 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_SDOUT_. Supported peripheral buses: SPI, ADC.
12VREF -AnalogSignal terminal VREF - (Analog, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: VREF -. Supported peripheral buses: General.
13VREF+AnalogSignal terminal VREF+ (Analog, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: VREF+. Supported peripheral buses: General.
14PA0Digital_IOSignal terminal PA0 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_, SPI3_RDY. Supported peripheral buses: UART, SPI, ADC.
15PA1Digital_IOSignal terminal PA1 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PA1. Supported peripheral buses: UART, ADC.
16PA2Digital_IOSignal terminal PA2 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PA2. Supported peripheral buses: ADC.
17PA3Digital_IOSignal terminal PA3 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_NSS. Supported peripheral buses: SPI, ADC.
18VSSGND0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks.
19VDDPower_InPrimary positive power supply input (VDD) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V).
20PA4Digital_IOSignal terminal PA4 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: SPI3_MOSI. Supported peripheral buses: SPI, ADC, DAC.
21PA5Digital_IOSignal terminal PA5 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_2. Supported peripheral buses: UART, SPI, ADC, PWM.
22PA6Digital_IOSignal terminal PA6 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PA6. Supported peripheral buses: UART, SPI, ADC, PWM.
23PA7Digital_IOSignal terminal PA7 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI1_MOSI. Supported peripheral buses: UART, SPI, ADC.
24PC4Digital_IOSignal terminal PC4 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PC4. Supported peripheral buses: ADC.
25PC5Digital_IOSignal terminal PC5 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PC5. Supported peripheral buses: ADC.
26PB0Digital_IOSignal terminal PB0 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI3. Supported peripheral buses: UART, SPI, ADC, PWM.
27PB1Digital_IOSignal terminal PB1 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI. Supported peripheral buses: UART, SPI, ADC, PWM.
28PB2Digital_IOSignal terminal PB2 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_SCK. Supported peripheral buses: SPI, ADC, RTC/CLK.
29PB10Digital_IOSignal terminal PB10 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PB10. Supported peripheral buses: SPI, I2C, PWM.
30VCAPDigital_IOSignal terminal VCAP (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: VCAP. Supported peripheral buses: General.
31VSSGND0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks.
32VDDPower_InPrimary positive power supply input (VDD) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V).
33PB12Digital_IOSignal terminal PB12 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PB12. Supported peripheral buses: I2C.
34PB13Digital_IOSignal terminal PB13 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: I2C2_SMBA, SPI2_SCK. Supported peripheral buses: UART, SPI, I2C.
35PB14Digital_IOSignal terminal PB14 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PB14. Supported peripheral buses: UART, SPI.
36PB15Digital_IOSignal terminal PB15 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_MOSI. Supported peripheral buses: UART, SPI, PWM, RTC/CLK.
37PC6Digital_IOSignal terminal PC6 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PC6. Supported peripheral buses: PWM.
38PC7Digital_IOSignal terminal PC7 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PC7. Supported peripheral buses: PWM.
39PC8Digital_IOSignal terminal PC8 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PC8. Supported peripheral buses: UART.
40PC9Digital_IOSignal terminal PC9 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PC9. Supported peripheral buses: UART, I2C, RTC/CLK.
41PA8Digital_IOSignal terminal PA8 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI1_RDYSPI2. Supported peripheral buses: SPI, I2C, PWM, RTC/CLK.
42PA9Digital_IOSignal terminal PA9 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_SCK. Supported peripheral buses: SPI, I2C, PWM, RTC/CLK.
43PA10Digital_IOSignal terminal PA10 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PA10. Supported peripheral buses: General.
44PA11Digital_IOSignal terminal PA11 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: USB_DM. Supported peripheral buses: USB, UART, SPI.
45PA12Digital_IOSignal terminal PA12 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: I2C2_SDA, USB_DP. Supported peripheral buses: USB, UART, SPI, I2C.
46PA13(JTMS/ SWDIO)Digital_IOSignal terminal PA13(JTMS/ SWDIO) (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PA13(JTMS/ SWDIO). Supported peripheral buses: SWD/JTAG.
47VSSGND0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks.
48VDDPower_InPrimary positive power supply input (VDD) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V).
49PA14(JTCK/ SWCLK)Digital_IOSignal terminal PA14(JTCK/ SWCLK) (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PA14(JTCK/ SWCLK). Supported peripheral buses: SWD/JTAG.
50PA15(JTDI)Digital_IOSignal terminal PA15(JTDI) (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI1_NSS. Supported peripheral buses: UART, SPI, SWD/JTAG.
51PC10Digital_IOSignal terminal PC10 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI3_SCK. Supported peripheral buses: SPI, I2C.
52PC11Digital_IOSignal terminal PC11 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PC11. Supported peripheral buses: UART, I2C.
53PC12Digital_IOSignal terminal PC12 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI3_MOS. Supported peripheral buses: UART, SPI.
54PD2Digital_IOSignal terminal PD2 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PD2. Supported peripheral buses: UART.
55PB3(JTDO/ TRACESWO)Digital_IOSignal terminal PB3(JTDO/ TRACESWO) (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: I2C2_SD, SPI3_SCK, I2C2_SCL. Supported peripheral buses: SPI, I2C, SWD/JTAG.
56PB4(NJTRST)Digital_IOSignal terminal PB4(NJTRST) (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PB4(NJTRST). Supported peripheral buses: UART, SPI, I2C, PWM, SWD/JTAG.
57PB5Digital_IOSignal terminal PB5 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI1_MOSI. Supported peripheral buses: UART, SPI, I2C, PWM.
58PB6Digital_IOSignal terminal PB6 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: I2C1_SCL, SPI3_MISO. Supported peripheral buses: UART, SPI, I2C.
59PB7Digital_IOSignal terminal PB7 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI3. Supported peripheral buses: UART, SPI, I2C.
60PH2BOOT0 -Digital_IOSignal terminal PH2BOOT0 - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PH2BOOT0 -. Supported peripheral buses: CAN, RTC/CLK.
61PB8Digital_IOSignal terminal PB8 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PB8. Supported peripheral buses: I2C.
62PB9Digital_IOSignal terminal PB9 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: I2C1_SDA, SPI2_NSS, SPI3_SCK. Supported peripheral buses: SPI, I2C.
63VSSGND0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks.
64VDDPower_InPrimary positive power supply input (VDD) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V).
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