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| PartNumber | STM32L4R9AGI6 | STM32L4R9AII6 | STM32L4R9I-DISCO |
| Description | ARM Microcontrollers - MCU Ultra-low-power with FPU ARM Cortex-M4 MCU 120 MHz with 1024 kbytes Flash, USB OTG, DFSDM, LCD-TFT, MIPI DSI | ARM Microcontrollers - MCU Ultra-low-power with FPU ARM Cortex-M4 MCU 120 MHz with 2048 kbytes Flash, USB OTG, DFSDM, LCD-TFT, MIPI DSI | Development Boards & Kits - ARM Discovery kit with STM32L4R9AI MCU |
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Category | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | Development Boards & Kits - ARM |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | UFBGA-169 | UFBGA-169 | - |
| Series | STM32L4R9AG | STM32L4R9AI | 32L4R9IDISCOVERY |
| Core | ARM Cortex M4 | ARM Cortex M4 | ARM Cortex M4 |
| Data Bus Width | 32 bit | 32 bit | 32 bit |
| Maximum Clock Frequency | 120 MHz | 120 MHz | - |
| Program Memory Size | 1 MB | 2 MB | - |
| Data RAM Size | 640 kB | 640 kB | - |
| ADC Resolution | 12 bit | 12 bit | - |
| Number of I/Os | 131 I/O | 131 I/O | - |
| Operating Supply Voltage | 1.71 V to 3.6 V | 1.71 V to 3.6 V | 1.71 V to 3.6 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Product | MCU+FPU | MCU+FPU | Discovery Kits |
| Program Memory Type | Flash | Flash | - |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Data RAM Type | SRAM | SRAM | - |
| Interface Type | CAN, I2C, LPUART, SAI, SPI, UART, USART, USB OTG FS | CAN, I2C, SAI, SPI, USART, USB | - |
| Analog Supply Voltage | 1.62 V to 3.6 V, 1.8 V to 3.6 V | - | - |
| DAC Resolution | 2 x 12 bit | 12 bit | - |
| I/O Voltage | 1.08 V to 3.6 V | - | - |
| Moisture Sensitive | Yes | Yes | - |
| Number of ADC Channels | 14 Channel | 14 Channel | - |
| Number of Timers/Counters | 16 Timer | 7 Timer | - |
| Processor Series | STM32L4R9 | STM32L4R9xx | - |
| Product Type | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | Development Boards & Kits - ARM |
| Factory Pack Quantity | 2496 | 2496 | 1 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Development Tools |
| Supply Voltage Max | 3.6 V | 3.6 V | - |
| Supply Voltage Min | 1.71 V | 1.71 V | - |
| Watchdog Timers | Watchdog Timer, Windowed | Watchdog Timer | - |
| Packaging | - | Tray | - |
| Tool Is For Evaluation Of | - | - | STM32L4R9I |