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STM32WL55JCIx
STMicroelectronics Arm Cortex-M4 MCU, 256KB flash, 64KB RAM, 48 MHz, 1.8-3.6V, 43 GPIO, UFBGA73
Schematic Symbol
Pin Configuration (73 pins)
| Pin | Name | Type |
|---|---|---|
| A1 | VSSSMPS | power_in |
| A2 | VDDSMPS | power_in |
| A4 | PA14 | bidirectional |
| A5 | VDDA | power_in |
| A7 | VDD | power_in |
| A8 | VBAT | power_in |
| A9 | PA12 | bidirectional |
| B1 | VLXSMPS | power_in |
| B2 | VFBSMPS | input |
| B3 | PA15 | bidirectional |
| B4 | PB15 | bidirectional |
| B5 | VREF+ | input |
| B6 | PC14 | bidirectional |
| B7 | VSS | power_in |
| B8 | PA13 | bidirectional |
| B9 | PA11 | bidirectional |
| C1 | PB3 | bidirectional |
| C2 | PB4 | bidirectional |
| C3 | PB7 | bidirectional |
| C4 | PB9 | bidirectional |
| C5 | PC15 | bidirectional |
| C6 | PB14 | bidirectional |
| C7 | PC13 | bidirectional |
| C8 | PA10 | bidirectional |
| D2 | PB5 | bidirectional |
| D3 | PB8 | bidirectional |
| D4 | PC2 | bidirectional |
| D5 | PC3 | bidirectional |
| D6 | PA0 | bidirectional |
| D7 | PB13 | bidirectional |
| D8 | PB2 | bidirectional |
| D9 | VSS | passive |
| E1 | PB6 | bidirectional |
| E2 | VDD | power_in |
| E3 | VSS | passive |
| E4 | PC5 | bidirectional |
| E5 | PA9 | bidirectional |
| E6 | PB12 | bidirectional |
| E7 | PB1 | bidirectional |
| E8 | VDDRF | power_in |
| E9 | VDD | power_in |
| F1 | PC1 | bidirectional |
| F2 | PC0 | bidirectional |
| F3 | PC4 | bidirectional |
| F4 | PA6 | bidirectional |
| F5 | NRST | input |
| F6 | PB0 | bidirectional |
| F7 | VDDRF1V55 | power_in |
| F8 | OSC_OUT | input |
| G2 | PC6 | bidirectional |
| G3 | PA1 | bidirectional |
| G4 | PB11 | bidirectional |
| G5 | VSS | passive |
| G6 | VSSRF | power_in |
| G7 | VSSRF | passive |
| G8 | VSSRF | passive |
| G9 | OSC_IN | input |
| H1 | PA3 | bidirectional |
| H2 | PA2 | bidirectional |
| H3 | PA7 | bidirectional |
| H4 | PB10 | bidirectional |
| H5 | VDD | power_in |
| H6 | VSSRF | passive |
| H7 | RFI_N | bidirectional |
| H8 | VDDPA | power_in |
| H9 | VR_PA | power_in |
| J1 | PA4 | bidirectional |
| J2 | PA5 | bidirectional |
| J3 | PA8 | bidirectional |
| J5 | PH3 | bidirectional |
| J6 | RFI_P | bidirectional |
| J8 | RFO_LP | bidirectional |
| J9 | RFO_HP | bidirectional |
Footprint
ConfirmedPackage_BGA/ST_UFBGA-73_5x5mm_Layout9x9_P0.5mm
Pad Layout
Pads (73)
| Number | Type |
|---|---|
| A1 | smd |
| A2 | smd |
| A4 | smd |
| A5 | smd |
| A7 | smd |
| A8 | smd |
| A9 | smd |
| B1 | smd |
| B2 | smd |
| B3 | smd |
| B4 | smd |
| B5 | smd |
| B6 | smd |
| B7 | smd |
| B8 | smd |
| B9 | smd |
| C1 | smd |
| C2 | smd |
| C3 | smd |
| C4 | smd |
| C5 | smd |
| C6 | smd |
| C7 | smd |
| C8 | smd |
| D2 | smd |
| D3 | smd |
| D4 | smd |
| D5 | smd |
| D6 | smd |
| D7 | smd |
| D8 | smd |
| D9 | smd |
| E1 | smd |
| E2 | smd |
| E3 | smd |
| E4 | smd |
| E5 | smd |
| E6 | smd |
| E7 | smd |
| E8 | smd |
| E9 | smd |
| F1 | smd |
| F2 | smd |
| F3 | smd |
| F4 | smd |
| F5 | smd |
| F6 | smd |
| F7 | smd |
| F8 | smd |
| G2 | smd |
| G3 | smd |
| G4 | smd |
| G5 | smd |
| G6 | smd |
| G7 | smd |
| G8 | smd |
| G9 | smd |
| H1 | smd |
| H2 | smd |
| H3 | smd |
| H4 | smd |
| H5 | smd |
| H6 | smd |
| H7 | smd |
| H8 | smd |
| H9 | smd |
| J1 | smd |
| J2 | smd |
| J3 | smd |
| J5 | smd |
| J6 | smd |
| J8 | smd |
| J9 | smd |