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STM32L431CCYx
STMicroelectronics Arm Cortex-M4 MCU, 256KB flash, 64KB RAM, 80 MHz, 1.71-3.6V, 39 GPIO, WLCSP49
Schematic Symbol
Pin Configuration (49 pins)
| Pin | Name | Type |
|---|---|---|
| A1 | VDD | power_in |
| A2 | PA14 | bidirectional |
| A3 | PB3 | bidirectional |
| A4 | PB4 | bidirectional |
| A5 | PH3 | bidirectional |
| A6 | VSS | power_in |
| A7 | VDD | power_in |
| B1 | VSS | passive |
| B2 | PA13 | bidirectional |
| B3 | PA15 | bidirectional |
| B4 | PB5 | bidirectional |
| B5 | PB8 | bidirectional |
| B6 | VBAT | power_in |
| B7 | PC13 | bidirectional |
| C1 | PA11 | bidirectional |
| C2 | PA10 | bidirectional |
| C3 | PA12 | bidirectional |
| C4 | PB6 | bidirectional |
| C5 | PB9 | bidirectional |
| C6 | PC15 | bidirectional |
| C7 | PC14 | bidirectional |
| D1 | PA8 | bidirectional |
| D2 | PA9 | bidirectional |
| D3 | PB15 | bidirectional |
| D4 | PB7 | bidirectional |
| D5 | NRST | input |
| D6 | PH1 | bidirectional |
| D7 | PH0 | bidirectional |
| E1 | PB14 | bidirectional |
| E2 | PB13 | bidirectional |
| E3 | PB10 | bidirectional |
| E4 | PA3 | bidirectional |
| E5 | PA2 | bidirectional |
| E6 | PC3 | bidirectional |
| E7 | VSSA | power_in |
| F1 | PB12 | bidirectional |
| F2 | PB11 | bidirectional |
| F3 | PA7 | bidirectional |
| F4 | PA6 | bidirectional |
| F5 | PA5 | bidirectional |
| F6 | PA0 | bidirectional |
| F7 | VDDA | power_in |
| G1 | VDD | power_in |
| G2 | VSS | passive |
| G3 | PB2 | bidirectional |
| G4 | PB1 | bidirectional |
| G5 | PB0 | bidirectional |
| G6 | PA4 | bidirectional |
| G7 | PA1 | bidirectional |
Footprint
ConfirmedPackage_CSP/ST_WLCSP-49_Die435
Pad Layout
Pads (49)
| Number | Type |
|---|---|
| A1 | smd |
| A2 | smd |
| A3 | smd |
| A4 | smd |
| A5 | smd |
| A6 | smd |
| A7 | smd |
| B1 | smd |
| B2 | smd |
| B3 | smd |
| B4 | smd |
| B5 | smd |
| B6 | smd |
| B7 | smd |
| C1 | smd |
| C2 | smd |
| C3 | smd |
| C4 | smd |
| C5 | smd |
| C6 | smd |
| C7 | smd |
| D1 | smd |
| D2 | smd |
| D3 | smd |
| D4 | smd |
| D5 | smd |
| D6 | smd |
| D7 | smd |
| E1 | smd |
| E2 | smd |
| E3 | smd |
| E4 | smd |
| E5 | smd |
| E6 | smd |
| E7 | smd |
| F1 | smd |
| F2 | smd |
| F3 | smd |
| F4 | smd |
| F5 | smd |
| F6 | smd |
| F7 | smd |
| G1 | smd |
| G2 | smd |
| G3 | smd |
| G4 | smd |
| G5 | smd |
| G6 | smd |
| G7 | smd |