STM32WLE4JCI / STM32WLE5CCU (UFQFPN-48(7x7))
| Pin | Symbol | Type | Function (EN) |
|---|---|---|---|
| A1 | VSSSMPS | GND | Ground Reference Pin (VSSSMPS) |
| A2 | VDDSMPS | Power | Power Supply Input (VDDSMPS — 3.3V VDD (Max 4.0V)) |
| A4 | PA14 | I/O | Multiplexed I/O & Peripheral Pin PA14 (I2C, ADC, SWD/JTAG) |
| A5 | VDDA | Power | Power Supply Input (VDDA — 3.3V VDD (Max 4.0V)) |
| A7 | VDD | Power | Power Supply Input (VDD — 3.3V VDD (Max 4.0V)) |
| A8 | VBAT | Power | Power Supply Input (VBAT — 3.3V VDD (Max 4.0V)) |
| A9 | PA12 | I/O | Multiplexed I/O & Peripheral Pin PA12 (I2C, ADC) |
| B1 | VLXSMPS | I/O | Multiplexed I/O & Peripheral Pin VLXSMPS (General) |
| B2 | VFBSMPS | I/O | Multiplexed I/O & Peripheral Pin VFBSMPS (General) |
| B3 | PA15 | I/O | Multiplexed I/O & Peripheral Pin PA15 (I2C, ADC, SWD/JTAG) |
| B4 | PB15 | I/O | Multiplexed I/O & Peripheral Pin PB15 (SPI, PWM) |
| B5 | VREF+ | Analog | Multiplexed I/O & Peripheral Pin VREF+ (General) |
| B6 | PC14OSC32 IN -_ | I/O | Multiplexed I/O & Peripheral Pin PC14OSC32 IN -_ (RTC/CLK) |
| B7 | VSS | GND | Ground Reference Pin (VSS) |
| B8 | PA13 | I/O | Multiplexed I/O & Peripheral Pin PA13 (I2C, ADC, SWD/JTAG) |
| B9 | PA11 | I/O | Multiplexed I/O & Peripheral Pin PA11 (SPI, ADC, PWM) |
| C1 | PB3 | I/O | Multiplexed I/O & Peripheral Pin PB3 (UART, SPI, ADC, SWD/JTAG) |
| C2 | PB4 | I/O | Multiplexed I/O & Peripheral Pin PB4 (SPI, I2C, SWD/JTAG) |
| C3 | PB7 | I/O | Multiplexed I/O & Peripheral Pin PB7 (I2C) |
| C4 | PB9 | I/O | Multiplexed I/O & Peripheral Pin PB9 (SPI, PWM) |
| C5 | PC15 - OSC32_OUT | I/O | Multiplexed I/O & Peripheral Pin PC15 - OSC32_OUT (RTC/CLK) |
| C6 | PB14 | I/O | Multiplexed I/O & Peripheral Pin PB14 (I2C, ADC, PWM) |
| C7 | PC13 | I/O | Multiplexed I/O & Peripheral Pin PC13 (RTC/CLK) |
| C8 | PA10 | I/O | Multiplexed I/O & Peripheral Pin PA10 (UART, SPI, I2C, DAC, RTC/CLK) |
| D2 | PB5 | I/O | Multiplexed I/O & Peripheral Pin PB5 (UART, SPI) |
| D3 | PB8 | I/O | Multiplexed I/O & Peripheral Pin PB8 (PWM) |
| D4 | PC2 | I/O | Multiplexed I/O & Peripheral Pin PC2 (General) |
| D5 | PC3 | I/O | Multiplexed I/O & Peripheral Pin PC3 (SPI) |
| D6 | PA0 | I/O | Multiplexed I/O & Peripheral Pin PA0 (PWM) |
| D7 | PB13 | I/O | Multiplexed I/O & Peripheral Pin PB13 (UART, SPI, ADC, PWM) |
| D8 | PB2 | I/O | Multiplexed I/O & Peripheral Pin PB2 (SPI, ADC) |
| D9 | VSS | GND | Ground Reference Pin (VSS) |
| E1 | PB6 | I/O | Multiplexed I/O & Peripheral Pin PB6 (UART) |
| E2 | VDD | Power | Power Supply Input (VDD — 3.3V VDD (Max 4.0V)) |
| E3 | VSS | GND | Ground Reference Pin (VSS) |
| E4 | PC5 | I/O | Multiplexed I/O & Peripheral Pin PC5 (General) |
| E5 | PA9 | I/O | Multiplexed I/O & Peripheral Pin PA9 (UART, SPI, I2C, PWM) |
| E6 | PB12 | I/O | Multiplexed I/O & Peripheral Pin PB12 (UART, SPI) |
| E7 | PB1 | I/O | Multiplexed I/O & Peripheral Pin PB1 (UART) |
| E8 | VDDRF | Power | Power Supply Input (VDDRF — 3.3V VDD (Max 4.0V)) |
| E9 | VDD | Power | Power Supply Input (VDD — 3.3V VDD (Max 4.0V)) |
| F1 | PC1 | I/O | Multiplexed I/O & Peripheral Pin PC1 (SPI, I2C) |
| F2 | PC0 | I/O | Multiplexed I/O & Peripheral Pin PC0 (General) |
| F3 | PC4 | I/O | Multiplexed I/O & Peripheral Pin PC4 (General) |
| F4 | PA6 | I/O | Multiplexed I/O & Peripheral Pin PA6 (SPI) |
| F5 | NRST | I | System Enable & Hardware Reset (NRST) |
| F6 | PB0 VDD TCXO -_ | Power | Regulated Power Output (PB0 VDD TCXO -_ — 3.3V VDD (Max 4.0V)) |
| F7 | VDDRF1V55 | Power | Power Supply Input (VDDRF1V55 — 3.3V VDD (Max 4.0V)) |
| F8 | OSC_OUT | I/O | Multiplexed I/O & Peripheral Pin OSC_OUT (RTC/CLK) |
| G2 | PC6 | I/O | Multiplexed I/O & Peripheral Pin PC6 (General) |
| G3 | PA1 | I/O | Multiplexed I/O & Peripheral Pin PA1 (UART, I2C, PWM) |
| G4 | PB11 | I/O | Multiplexed I/O & Peripheral Pin PB11 (PWM) |
| G5 | VSS | GND | Ground Reference Pin (VSS) |
| G6 | VSSRF | GND | Ground Reference Pin (VSSRF) |
| G7 | VSSRF | GND | Ground Reference Pin (VSSRF) |
| G8 | VSSRF | GND | Ground Reference Pin (VSSRF) |
| G9 | OSC_IN | I/O | Multiplexed I/O & Peripheral Pin OSC_IN (RTC/CLK) |
| H1 | PA3 | I/O | Multiplexed I/O & Peripheral Pin PA3 (UART, PWM) |
| H2 | PA2 | I/O | Multiplexed I/O & Peripheral Pin PA2 (UART) |
| H3 | PA7 | I/O | Multiplexed I/O & Peripheral Pin PA7 (SPI, PWM) |
| H4 | PB10 | I/O | Multiplexed I/O & Peripheral Pin PB10 (SPI, PWM) |
| H5 | VDD | Power | Power Supply Input (VDD — 3.3V VDD (Max 4.0V)) |
| H6 | VSSRF | GND | Ground Reference Pin (VSSRF) |
| H7 | RFI_N | I/O | Multiplexed I/O & Peripheral Pin RFI_N (General) |
| H8 | VDDPA | Power | Power Supply Input (VDDPA — 3.3V VDD (Max 4.0V)) |
| H9 | VR_PA | I/O | Multiplexed I/O & Peripheral Pin VR_PA (General) |
| J1 | PA4 | I/O | Multiplexed I/O & Peripheral Pin PA4 (SPI, RTC/CLK) |
| J2 | PA5 | I/O | Multiplexed I/O & Peripheral Pin PA5 (SPI, PWM) |
| J3 | PA8 | I/O | Multiplexed I/O & Peripheral Pin PA8 (UART, SPI, RTC/CLK) |
| J5 | PH3BOOT0 - | I/O | Multiplexed I/O & Peripheral Pin PH3BOOT0 - (General) |
| J6 | RFI_P | I/O | Multiplexed I/O & Peripheral Pin RFI_P (General) |
| J8 | RFO_LP | I/O | Multiplexed I/O & Peripheral Pin RFO_LP (General) |
| J9 | RFO_HP | I/O | Multiplexed I/O & Peripheral Pin RFO_HP (General) |
STM32WLE4JCI / STM32WLE5CCU (UFQFPN-48(7x7))
STM32WLE4JCI / STM32WLE5CCU (UFBGA-73)
| Designator / Replacement MPN | Value / Package | Function & PCB Layout Rule |
|---|---|---|
| N/A BOM | Per application circuit UFBGA-73 | Size power & signal trace widths for rated load current following IPC-2221 clearance rules. |
Manufactured by ST, the STM32WLE4JCI6 is housed in a UFBGA-73 package with 73 pins and a 0.50 mm lead pitch, supporting a VCC supply range of 1.8 V to 3.6 V. Key pins include: A1 (VSSSMPS: Ground Reference Pin (VSSSMPS)), A2 (VDDSMPS: Power Supply Input (VDDSMPS — 3.3V VDD (Max 4.0V))), A4 (PA14: Multiplexed I/O & Peripheral Pin PA14 (I2C, ADC, SWD/JTAG)), A5 (VDDA: Power Supply Input (VDDA — 3.3V VDD (Max 4.0V))), A7 (VDD: Power Supply Input (VDD — 3.3V VDD (Max 4.0V))), A8 (VBAT: Power Supply Input (VBAT — 3.3V VDD (Max 4.0V))).
Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), STM32WLE4JCI6 (UFBGA-73) has a nominal body envelope of 5.00 × 5.00 mm, pitch e = 0.50 mm, and 73 copper pads.
You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for STM32WLE4JCI6 (ST, UFBGA-73) 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.
| Pin # | Signal Name | Electrical Type | Functional Description & Design Notes |
|---|---|---|---|
| A1 | VSSSMPS | GND | 0V electrical ground return terminal (VSSSMPS) for internal core logic, I/O drivers, and analog sub-blocks. |
| A2 | VDDSMPS | Power_In | Primary positive power supply input (VDDSMPS) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| A4 | PA14 | Digital_IO | Signal terminal PA14 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PA14. Supported peripheral buses: I2C, ADC, SWD/JTAG. |
| A5 | VDDA | Power_In | Primary positive power supply input (VDDA) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| A7 | VDD | Power_In | Primary positive power supply input (VDD) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| A8 | VBAT | Power_In | Primary positive power supply input (VBAT) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| A9 | PA12 | Digital_IO | Signal terminal PA12 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PA12. Supported peripheral buses: I2C, ADC. |
| B1 | VLXSMPS | Digital_IO | Signal terminal VLXSMPS (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: VLXSMPS. Supported peripheral buses: General. |
| B2 | VFBSMPS | Digital_IO | Signal terminal VFBSMPS (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: VFBSMPS. Supported peripheral buses: General. |
| B3 | PA15 | Digital_IO | Signal terminal PA15 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PA15. Supported peripheral buses: I2C, ADC, SWD/JTAG. |
| B4 | PB15 | Digital_IO | Signal terminal PB15 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_MOSI. Supported peripheral buses: SPI, PWM. |
| B5 | VREF+ | Analog | Signal terminal VREF+ (Analog, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: VREF+. Supported peripheral buses: General. |
| B6 | PC14OSC32 IN -_ | Digital_IO | Signal terminal PC14OSC32 IN -_ (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PC14OSC32 IN -_. Supported peripheral buses: RTC/CLK. |
| B7 | VSS | GND | 0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks. |
| B8 | PA13 | Digital_IO | Signal terminal PA13 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: I2C2_SMBA. Supported peripheral buses: I2C, ADC, SWD/JTAG. |
| B9 | PA11 | Digital_IO | Signal terminal PA11 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI1_MISOUSART1CTS. Supported peripheral buses: SPI, ADC, PWM. |
| C1 | PB3 | Digital_IO | Signal terminal PB3 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI1_SCKRFIRQ0. Supported peripheral buses: UART, SPI, ADC, SWD/JTAG. |
| C2 | PB4 | Digital_IO | Signal terminal PB4 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: I2C3_SDA, SPI1_MISOUSART1CTS. Supported peripheral buses: SPI, I2C, SWD/JTAG. |
| C3 | PB7 | Digital_IO | Signal terminal PB7 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PB7. Supported peripheral buses: I2C. |
| C4 | PB9 | Digital_IO | Signal terminal PB9 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_NSS. Supported peripheral buses: SPI, PWM. |
| C5 | PC15 - OSC32_OUT | Digital_IO | Signal terminal PC15 - OSC32_OUT (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PC15 - OSC32_OUT. Supported peripheral buses: RTC/CLK. |
| C6 | PB14 | Digital_IO | Signal terminal PB14 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PB14. Supported peripheral buses: I2C, ADC, PWM. |
| C7 | PC13 | Digital_IO | Signal terminal PC13 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PC13. Supported peripheral buses: RTC/CLK. |
| C8 | PA10 | Digital_IO | Signal terminal PA10 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: I2C1_SDA, SPI2_MOSI. Supported peripheral buses: UART, SPI, I2C, DAC, RTC/CLK. |
| D2 | PB5 | Digital_IO | Signal terminal PB5 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI1_MOSIRFIRQ1. Supported peripheral buses: UART, SPI. |
| D3 | PB8 | Digital_IO | Signal terminal PB8 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PB8. Supported peripheral buses: PWM. |
| D4 | PC2 | Digital_IO | Signal terminal PC2 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PC2. Supported peripheral buses: General. |
| D5 | PC3 | Digital_IO | Signal terminal PC3 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_MOSI. Supported peripheral buses: SPI. |
| D6 | PA0 | Digital_IO | Signal terminal PA0 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PA0. Supported peripheral buses: PWM. |
| D7 | PB13 | Digital_IO | Signal terminal PB13 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_SCK. Supported peripheral buses: UART, SPI, ADC, PWM. |
| D8 | PB2 | Digital_IO | Signal terminal PB2 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI1_NSS. Supported peripheral buses: SPI, ADC. |
| D9 | VSS | GND | 0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks. |
| E1 | PB6 | Digital_IO | Signal terminal PB6 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PB6. Supported peripheral buses: UART. |
| E2 | VDD | Power_In | Primary positive power supply input (VDD) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| E3 | VSS | GND | 0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks. |
| E4 | PC5 | Digital_IO | Signal terminal PC5 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PC5. Supported peripheral buses: General. |
| E5 | PA9 | Digital_IO | Signal terminal PA9 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_NSS, I2C1_SCL, SPI2_SCK. Supported peripheral buses: UART, SPI, I2C, PWM. |
| E6 | PB12 | Digital_IO | Signal terminal PB12 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_NSS. Supported peripheral buses: UART, SPI. |
| E7 | PB1 | Digital_IO | Signal terminal PB1 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PB1. Supported peripheral buses: UART. |
| E8 | VDDRF | Power_In | Primary positive power supply input (VDDRF) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| E9 | VDD | Power_In | Primary positive power supply input (VDD) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| F1 | PC1 | Digital_IO | Signal terminal PC1 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_MOSI. Supported peripheral buses: SPI, I2C. |
| F2 | PC0 | Digital_IO | Signal terminal PC0 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PC0. Supported peripheral buses: General. |
| F3 | PC4 | Digital_IO | Signal terminal PC4 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PC4. Supported peripheral buses: General. |
| F4 | PA6 | Digital_IO | Signal terminal PA6 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI1_MISOLPUART1CTS. Supported peripheral buses: SPI. |
| F5 | NRST | Digital_IO | Active-low hardware reset terminal (NRST): pulling this pin Low resets the processor core and peripherals. |
| F6 | PB0 VDD TCXO -_ | Power_Out | Regulated power output rail (PB0 VDD TCXO -_) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| F7 | VDDRF1V55 | Power_In | Primary positive power supply input (VDDRF1V55) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| F8 | OSC_OUT | Digital_IO | Signal terminal OSC_OUT (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: OSC_OUT. Supported peripheral buses: RTC/CLK. |
| G2 | PC6 | Digital_IO | Signal terminal PC6 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PC6. Supported peripheral buses: General. |
| G3 | PA1 | Digital_IO | Signal terminal PA1 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PA1. Supported peripheral buses: UART, I2C, PWM. |
| G4 | PB11 | Digital_IO | Signal terminal PB11 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PB11. Supported peripheral buses: PWM. |
| G5 | VSS | GND | 0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks. |
| G6 | VSSRF | GND | 0V electrical ground return terminal (VSSRF) for internal core logic, I/O drivers, and analog sub-blocks. |
| G7 | VSSRF | GND | 0V electrical ground return terminal (VSSRF) for internal core logic, I/O drivers, and analog sub-blocks. |
| G8 | VSSRF | GND | 0V electrical ground return terminal (VSSRF) for internal core logic, I/O drivers, and analog sub-blocks. |
| G9 | OSC_IN | Digital_IO | Signal terminal OSC_IN (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: OSC_IN. Supported peripheral buses: RTC/CLK. |
| H1 | PA3 | Digital_IO | Signal terminal PA3 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PA3. Supported peripheral buses: UART, PWM. |
| H2 | PA2 | Digital_IO | Signal terminal PA2 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PA2. Supported peripheral buses: UART. |
| H3 | PA7 | Digital_IO | Signal terminal PA7 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI1_MOSICOMP2OUT. Supported peripheral buses: SPI, PWM. |
| H4 | PB10 | Digital_IO | Signal terminal PB10 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_SCK. Supported peripheral buses: SPI, PWM. |
| H5 | VDD | Power_In | Primary positive power supply input (VDD) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| H6 | VSSRF | GND | 0V electrical ground return terminal (VSSRF) for internal core logic, I/O drivers, and analog sub-blocks. |
| H7 | RFI_N | RF_50Ohm | Signal terminal RFI_N (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: RFI_N. Supported peripheral buses: General. |