| Pin | Symbol | Type | Function (EN) |
|---|---|---|---|
| A1 | VDDSMPS | Power | Power Supply Input (VDDSMPS — 3.3V VDD (Max 4.0V)) |
| A2 | PA11 | I/O | Multiplexed I/O & Peripheral Pin PA11 (General) |
| A3 | PA12 | I/O | Multiplexed I/O & Peripheral Pin PA12 (General) |
| A4 | VDD | Power | Power Supply Input (VDD — 3.3V VDD (Max 4.0V)) |
| A5 | PB5 | I/O | Multiplexed I/O & Peripheral Pin PB5 (General) |
| A6 | PB7 | I/O | Multiplexed I/O & Peripheral Pin PB7 (General) |
| A7 | PC14-OSC32_IN | I/O | Multiplexed I/O & Peripheral Pin PC14-OSC32_IN (RTC/CLK) |
| B1 | VLXSMPS | I/O | Multiplexed I/O & Peripheral Pin VLXSMPS (General) |
| B2 | PA13 | I/O | Multiplexed I/O & Peripheral Pin PA13 (General) |
| B3 | PA14 | I/O | Multiplexed I/O & Peripheral Pin PA14 (General) |
| B4 | PB4 | I/O | Multiplexed I/O & Peripheral Pin PB4 (General) |
| B5 | PB6 | I/O | Multiplexed I/O & Peripheral Pin PB6 (General) |
| B6 | PH3-BOOT0 | I/O | Multiplexed I/O & Peripheral Pin PH3-BOOT0 (General) |
| B7 | PC15-OSC32_OUT | I/O | Multiplexed I/O & Peripheral Pin PC15-OSC32_OUT (RTC/CLK) |
| C1 | VSSSMPS | GND | Ground Reference Pin (VSSSMPS) |
| C2 | PA10 | I/O | Multiplexed I/O & Peripheral Pin PA10 (General) |
| C3 | VSS | GND | Ground Reference Pin (VSS) |
| C4 | PA0 | I/O | Multiplexed I/O & Peripheral Pin PA0 (General) |
| C5 | VBAT | Power | Power Supply Input (VBAT — 3.3V VDD (Max 4.0V)) |
| C6 | PB8 | I/O | Multiplexed I/O & Peripheral Pin PB8 (General) |
| C7 | PB11/NRST | I/O | Multiplexed I/O & Peripheral Pin PB11/NRST (General) |
| D1 | VDD | Power | Power Supply Input (VDD — 3.3V VDD (Max 4.0V)) |
| D2 | VFBSMPS | I/O | Multiplexed I/O & Peripheral Pin VFBSMPS (General) |
| D3 | PA9 | I/O | Multiplexed I/O & Peripheral Pin PA9 (General) |
| D4 | PA5 | I/O | Multiplexed I/O & Peripheral Pin PA5 (General) |
| D5 | PA3 | I/O | Multiplexed I/O & Peripheral Pin PA3 (General) |
| D6 | VSS | GND | Ground Reference Pin (VSS) |
| D7 | VDD | Power | Power Supply Input (VDD — 3.3V VDD (Max 4.0V)) |
| E1 | PB1 | I/O | Multiplexed I/O & Peripheral Pin PB1 (General) |
| E2 | PB0 | I/O | Multiplexed I/O & Peripheral Pin PB0 (General) |
| E3 | AT0 | I/O | Multiplexed I/O & Peripheral Pin AT0 (General) |
| E4 | PB4 | I/O | Multiplexed I/O & Peripheral Pin PB4 (General) |
| E5 | PA7 | I/O | Multiplexed I/O & Peripheral Pin PA7 (General) |
| E6 | PA2 | I/O | Multiplexed I/O & Peripheral Pin PA2 (General) |
| E7 | VDDA | Power | Power Supply Input (VDDA — 3.3V VDD (Max 4.0V)) |
| F1 | OSC_IN | I/O | Multiplexed I/O & Peripheral Pin OSC_IN (RTC/CLK) |
| F2 | OSC_OUT | I/O | Multiplexed I/O & Peripheral Pin OSC_OUT (RTC/CLK) |
| F3 | AT1 | I/O | Multiplexed I/O & Peripheral Pin AT1 (General) |
| F4 | VSS | GND | Ground Reference Pin (VSS) |
| F5 | VSS | GND | Ground Reference Pin (VSS) |
| F6 | PA6 | I/O | Multiplexed I/O & Peripheral Pin PA6 (General) |
| F7 | PA1 | I/O | Multiplexed I/O & Peripheral Pin PA1 (General) |
| G1 | VSSRF | GND | Ground Reference Pin (VSSRF) |
| G2 | VDDRF | Power | Power Supply Input (VDDRF — 3.3V VDD (Max 4.0V)) |
| G3 | VSSRF | GND | Ground Reference Pin (VSSRF) |
| G4 | RF1 | I/O | Multiplexed I/O & Peripheral Pin RF1 (General) |
| G5 | VDD | Power | Power Supply Input (VDD — 3.3V VDD (Max 4.0V)) |
| G6 | PA8 | I/O | Multiplexed I/O & Peripheral Pin PA8 (General) |
| G7 | PA4 | I/O | Multiplexed I/O & Peripheral Pin PA4 (General) |
| Designator / Replacement MPN | Value / Package | Function & PCB Layout Rule |
|---|---|---|
| N/A BOM | Per application circuit WLCSP-49 | Size power & signal trace widths for rated load current following IPC-2221 clearance rules. |
Manufactured by ST, the STM32WB15CCY6TR is housed in a WLCSP-49 package with 49 pins and a 0.40 mm lead pitch. Key pins include: A1 (VDDSMPS: Power Supply Input (VDDSMPS — 3.3V VDD (Max 4.0V))), A2 (PA11: Multiplexed I/O & Peripheral Pin PA11 (General)), A3 (PA12: Multiplexed I/O & Peripheral Pin PA12 (General)), A4 (VDD: Power Supply Input (VDD — 3.3V VDD (Max 4.0V))), A5 (PB5: Multiplexed I/O & Peripheral Pin PB5 (General)), A6 (PB7: Multiplexed I/O & Peripheral Pin PB7 (General)).
Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), STM32WB15CCY6TR (WLCSP-49) has a nominal body envelope of 3.30 × 3.30 mm, pitch e = 0.40 mm, and 49 copper pads.
You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for STM32WB15CCY6TR (ST, WLCSP-49) 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 | VDDSMPS | Power_In | Primary positive power supply input (VDDSMPS) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| A2 | PA11 | Digital_IO | Signal terminal PA11 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PA11. Supported peripheral buses: General. |
| A3 | PA12 | Digital_IO | Signal terminal PA12 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PA12. Supported peripheral buses: General. |
| A4 | VDD | Power_In | Primary positive power supply input (VDD) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| A5 | PB5 | Digital_IO | Signal terminal PB5 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PB5. Supported peripheral buses: General. |
| A6 | PB7 | Digital_IO | Signal terminal PB7 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PB7. Supported peripheral buses: General. |
| A7 | PC14-OSC32_IN | Digital_IO | Signal terminal PC14-OSC32_IN (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PC14-OSC32_IN. Supported peripheral buses: RTC/CLK. |
| 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 | PA13 | Digital_IO | Signal terminal PA13 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PA13. Supported peripheral buses: General. |
| B3 | PA14 | Digital_IO | Signal terminal PA14 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PA14. Supported peripheral buses: General. |
| B4 | PB4 | Digital_IO | Signal terminal PB4 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PB4. Supported peripheral buses: General. |
| B5 | PB6 | Digital_IO | Signal terminal PB6 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PB6. Supported peripheral buses: General. |
| B6 | PH3-BOOT0 | Digital_IO | Signal terminal PH3-BOOT0 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PH3-BOOT0. Supported peripheral buses: General. |
| B7 | PC15-OSC32_OUT | Digital_IO | Signal terminal PC15-OSC32_OUT (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PC15-OSC32_OUT. Supported peripheral buses: RTC/CLK. |
| C1 | VSSSMPS | GND | 0V electrical ground return terminal (VSSSMPS) for internal core logic, I/O drivers, and analog sub-blocks. |
| C2 | PA10 | Digital_IO | Signal terminal PA10 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PA10. Supported peripheral buses: General. |
| C3 | VSS | GND | 0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks. |
| C4 | PA0 | Digital_IO | Signal terminal PA0 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PA0. Supported peripheral buses: General. |
| C5 | VBAT | Power_In | Primary positive power supply input (VBAT) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| C6 | PB8 | Digital_IO | Signal terminal PB8 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PB8. Supported peripheral buses: General. |
| C7 | PB11/NRST | Digital_IO | Signal terminal PB11/NRST (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PB11/NRST. Supported peripheral buses: General. |
| D1 | VDD | Power_In | Primary positive power supply input (VDD) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| D2 | VFBSMPS | Digital_IO | Signal terminal VFBSMPS (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: VFBSMPS. Supported peripheral buses: General. |
| D3 | PA9 | Digital_IO | Signal terminal PA9 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PA9. Supported peripheral buses: General. |
| D4 | PA5 | Digital_IO | Signal terminal PA5 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PA5. Supported peripheral buses: General. |
| D5 | PA3 | Digital_IO | Signal terminal PA3 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PA3. Supported peripheral buses: General. |
| D6 | VSS | GND | 0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks. |
| D7 | VDD | Power_In | Primary positive power supply input (VDD) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| E1 | PB1 | Digital_IO | Signal terminal PB1 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PB1. Supported peripheral buses: General. |
| E2 | PB0 | Digital_IO | Signal terminal PB0 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PB0. Supported peripheral buses: General. |
| E3 | AT0 | Digital_IO | Signal terminal AT0 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: AT0. Supported peripheral buses: General. |
| E4 | PB4 | Digital_IO | Signal terminal PB4 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PB4. Supported peripheral buses: General. |
| E5 | PA7 | Digital_IO | Signal terminal PA7 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PA7. Supported peripheral buses: General. |
| E6 | PA2 | Digital_IO | Signal terminal PA2 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PA2. Supported peripheral buses: General. |
| E7 | VDDA | Power_In | Primary positive power supply input (VDDA) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| F1 | 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. |
| F2 | 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. |
| F3 | AT1 | Digital_IO | Signal terminal AT1 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: AT1. Supported peripheral buses: General. |
| F4 | VSS | GND | 0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks. |
| F5 | VSS | GND | 0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks. |
| F6 | PA6 | Digital_IO | Signal terminal PA6 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PA6. Supported peripheral buses: General. |
| F7 | PA1 | Digital_IO | Signal terminal PA1 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PA1. Supported peripheral buses: General. |
| G1 | VSSRF | GND | 0V electrical ground return terminal (VSSRF) for internal core logic, I/O drivers, and analog sub-blocks. |
| G2 | VDDRF | Power_In | Primary positive power supply input (VDDRF) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| G3 | VSSRF | GND | 0V electrical ground return terminal (VSSRF) for internal core logic, I/O drivers, and analog sub-blocks. |
| G4 | RF1 | Digital_IO | Signal terminal RF1 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: RF1. Supported peripheral buses: General. |
| G5 | VDD | Power_In | Primary positive power supply input (VDD) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| G6 | PA8 | Digital_IO | Signal terminal PA8 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PA8. Supported peripheral buses: General. |
| G7 | PA4 | Digital_IO | Signal terminal PA4 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PA4. Supported peripheral buses: General. |