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| Part Number | STM32L451CCU6TR | STM32L451CEU6TR | STM32L431CCU6TR | STM32L451CCU3TR |
|---|---|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Status | Active | Active | Active | Active |
| Core Processor | ARM® Cortex®-M4 | ARM® Cortex®-M4 | ARM® Cortex®-M4 | ARM® Cortex®-M4 |
| Core Size | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core |
| Speed | 80MHz | 80MHz | 80MHz | 80MHz |
| Connectivity | CANbus, I²C, IrDA, LINbus, QSPI, SAI, SPI, UART/USART | CANbus, I²C, IrDA, LINbus, QSPI, SAI, SPI, UART/USART | CANbus, I²C, IrDA, LINbus, QSPI, SAI, SPI, SWPMI, UART/USART | CANbus, I²C, IrDA, LINbus, QSPI, SAI, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, DMA, PWM, WDT | Brown-out Detect/Reset, DMA, PWM, WDT | Brown-out Detect/Reset, DMA, PWM, WDT | Brown-out Detect/Reset, DMA, PWM, WDT |
| Number of I/O | 38 | 38 | 39 | 38 |
| Program Memory Size | 256KB (256K x 8) | 512KB (512K x 8) | 256KB (256K x 8) | 256KB (256K x 8) |
| Program Memory Type | Flash | Flash | Flash | Flash |
| EEPROM Size | - | - | - | - |
| RAM Size | 160K x 8 | 160K x 8 | 64K x 8 | 160K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.71V ~ 3.6V | 1.71V ~ 3.6V | 1.71V ~ 3.6V | 1.71V ~ 3.6V |
| Data Converters | A/D 10x12b; D/A 1x12b | A/D 10x12b; D/A 1x12b | A/D 10x12b; D/A 2x12b | A/D 10x12b; D/A 1x12b |
| Oscillator Type | Internal | Internal | Internal | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 48-UFQFN Exposed Pad | 48-UFQFN Exposed Pad | 48-UFQFN Exposed Pad | 48-UFQFN Exposed Pad |
| Supplier Device Package | 48-UFQFPN (7x7) | 48-UFQFPN (7x7) | 48-UFQFPN (7x7) | 48-UFQFPN (7x7) |
