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| Part Number | STM32L051K6T6 | STM32L051K8T6 | STM32L052K6T6 | STM32L051R6T6 | STM32L051K6U6 | STM32L031K6T6 | STM32L051C6T6 |
|---|---|---|---|---|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Status | Active | Active | Active | Active | Active | Active | Active |
| Core Processor | ARM® Cortex®-M0+ | ARM® Cortex®-M0+ | ARM® Cortex®-M0+ | ARM® Cortex®-M0+ | ARM® Cortex®-M0+ | ARM® Cortex®-M0+ | ARM® Cortex®-M0+ |
| Core Size | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core |
| Speed | 32MHz | 32MHz | 32MHz | 32MHz | 32MHz | 32MHz | 32MHz |
| Connectivity | I²C, IrDA, SPI, UART/USART | I²C, IrDA, SPI, UART/USART | I²C, IrDA, SPI, UART/USART, USB | I²C, IrDA, SPI, UART/USART | I²C, IrDA, SPI, UART/USART | I²C, IrDA, LINbus, SPI, UART/USART | I²C, IrDA, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT | Brown-out Detect/Reset, DMA, POR, PWM, WDT | Brown-out Detect/Reset, DMA, POR, PWM, WDT | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT | Brown-out Detect/Reset, DMA, POR, PWM, WDT | Brown-out Detect/Reset, DMA, POR, PWM, WDT | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT |
| Number of I/O | 27 | 27 | 27 | 51 | 27 | 25 | 37 |
| Program Memory Size | 32KB (32K x 8) | 64KB (64K x 8) | 32KB (32K x 8) | 32KB (32K x 8) | 32KB (32K x 8) | 32KB (32K x 8) | 32KB (32K x 8) |
| Program Memory Type | Flash | Flash | Flash | Flash | Flash | Flash | Flash |
| EEPROM Size | 2K x 8 | 2K x 8 | 2K x 8 | 2K x 8 | 2K x 8 | 1K x 8 | 2K x 8 |
| RAM Size | 8K x 8 | 8K x 8 | 8K x 8 | 8K x 8 | 8K x 8 | 8K x 8 | 8K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.65V ~ 3.6V | 1.65V ~ 3.6V | 1.65V ~ 3.6V | 1.65V ~ 3.6V | 1.65V ~ 3.6V | 1.8V ~ 3.6V | 1.65V ~ 3.6V |
| Data Converters | A/D 10x12b | A/D 10x12b | A/D 10x12b; D/A 1x12b | A/D 16x12b | A/D 10x12b | A/D 10x12b | A/D 10x12b |
| Oscillator Type | Internal | Internal | Internal | Internal | Internal | Internal | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 32-LQFP | 32-LQFP | 32-LQFP | 64-LQFP | 32-UFQFN Exposed Pad | 32-LQFP | 48-LQFP |
| Supplier Device Package | 32-LQFP (7x7) | 32-LQFP (7x7) | 32-LQFP (7x7) | 64-LQFP (10x10) | 32-UFQFPN (5x5) | 32-LQFP (7x7) | 48-LQFP (7x7) |
