32-bit ARM Cortex M3 RISC microcontroller featuring 256KB Flash and 32KB RAM. This surface-mount device operates at up to 32 MHz and supports I2C, I2S, SPI, USART, and USB interfaces. It offers 51 programmable I/Os, 9 timers, 21 ADC channels, and dual 12-bit DACs. Packaged in a 64-pin WLCSP with a 0.4mm pin pitch, it operates from 2.5V to 3.3V and has an operating temperature range of -40°C to 85°C.
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| Basic Package Type | Ball Grid Array |
| Package Family Name | BGA |
| Package/Case | WLCSP |
| Package Description | Wafer Level Chip Scale Package |
| Lead Shape | Ball |
| Pin Count | 64 |
| PCB | 64 |
| Package Length (mm) | 4.91 |
| Package Width (mm) | 4.54 |
| Package Height (mm) | 0.38 |
| Seated Plane Height (mm) | 0.57 |
| Pin Pitch (mm) | 0.4 |
| Package Material | Plastic |
| Mounting | Surface Mount |
| Family Name | STM32L |
| Data Bus Width | 32bit |
| Instruction Set Architecture | RISC |
| Maximum Clock Rate | 32MHz |
| Maximum CPU Frequency | 32MHz |
| Device Core | ARM Cortex M3 |
| Program Memory Type | Flash |
| Program Memory Size | 256KB |
| RAM Size | 32KB |
| Number of Programmable I/Os | 51 |
| Core Architecture | ARM |
| Programmability | Yes |
| Number of Timers | 9 |
| Interface Type | I2C/I2S/SPI/USART/USB |
| CAN | 0 |
| I2C | 2 |
| SPI | 3 |
| Ethernet | 0 |
| UART | 0 |
| USART | 3 |
| USB | 1 |
| I2S | 2 |
| Max Operating Supply Voltage | 3.6V |
| Min Operating Temperature | -40°C |
| Max Operating Temperature | 85°C |
| ADC Channels | 21 |
| Number of ADCs | Single |
| DAC Channels | 2/2 |
| DAC Resolution | 12/12bit |
| Number of DACs | Dual |
| Cage Code | SCR76 |
| HTS Code | 8542310001 |
| Schedule B | 8542310000 |
| Automotive | No |
| AEC Qualified | No |
| PPAP | No |
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