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| Part Number: | STM32L021F4U6TR |
| Category: | Integrated Circuits (ICs) |
| Subcategory: | Embedded - Microcontrollers |
| Manufacturer: | STMicroelectronics |
| Packaging: | Tape & Reel (TR) |
| Product Status: | Active |
| Core Processor: | ARM® Cortex®-M0+ |
| Core Size: | 32-Bit Single-Core |
| Speed: | 32MHz |
| Connectivity: | I²C, IrDA, SPI, UART/USART |
| Peripherals: | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
| Number of I/O: | 16 |
| Program Memory Size: | 16KB (16K x 8) |
| Program Memory Type: | FLASH |
| EEPROM Size: | 512 x 8 |
| RAM Size: | 2K x 8 |
| Voltage - Supply (Vcc/Vdd): | 1.65V ~ 3.6V |
| Data Converters: | A/D 7x12b |
| Oscillator Type: | Internal |
| Operating Temperature: | -40°C ~ 85°C (TA) |
| Mounting Type: | Surface Mount |
| Package / Case: | 20-UFQFN |
| Supplier Device Package: | 20-UFQFPN (3x3) |
