32L4R9IDISCOVERY Discovery kit with STM32L4R9AI MCU Data brief Features STM32L4R9AII6 Arm -based microcontroller with 2-Mbyte Flash memory and 640-Kbyte RAM in UFBGA169 package 1.2 390x390 pixel AMOLED round display panel with 16 million colors depth, MIPI DSI interface and capacitive touch panel USB OTG FS On-board current measurement SAI audio codec ST-MEMS digital microphones 16-Mbit asynchronous PSRAM 512-Mbit Octo-SPI Flash 2 user LEDs 1 reset push-button Picture is not contractual. 4-direction joystick with selection button Support of a wide choice of integrated Board connectors: development environments (IDEs), including 8-bit camera IAR , Keil and STM32CubeIDE USB OTG FS with Micro-AB Stereo headset jack including analog Description microphone input The 32L4R9IDISCOVERY Discovery kit is a microSD card complete demonstration and development ARDUINO Uno V3 expansion connectors platform for STMicroelectronics Arm Cortex -M4 STMod+ expansion connector core-based STM32L4R9AI microcontroller. PMOD expansion connector Leveraging the innovative ultra-low-power EXT I2C expansion connector oriented features, 640 Kbytes of embedded RAM, Flexible power supply options: graphics performance (Chrom-ART Accelerator), ST-LINK USB V or external sources BUS and DSI controller offered by the STM32L4R9AI, the 32L4R9IDISCOVERY Discovery kit enables On-board ST-LINK/V2-1 users to easily prototype applications with state- debugger/programmer with USB of-the-art energy efficiency, as well as stunning re-enumeration capability: mass storage, audio and graphics rendering with direct support Virtual COM port and debug port for AMOLED DSI round LCD display. Comprehensive free software libraries and examples available with the STM32Cube For even more user-friendliness, the on-board package ST-LINK/V2-1 debugger provides out-of-the-box programming and debugging capabilities. February 2020 DB3241 Rev 3 1/5 For further information contact your local STMicroelectronics sales office. www.st.comOrdering information 32L4R9IDISCOVERY 1 Ordering information To order the 32L4R9IDISCOVERY Discovery kit, refer to Table 1. For a detailed description, refer to the user manual on the product web page. Additional information is available from the datasheet and reference manual of the target STM32. Table 1. Ordering information Order code Board references User manual Target STM32 MB1311 (1) STM32L4R9I-DISCO MB1280 UM2271 STM32L4R9AII6 (2) MB1314 1. Fanout board. 2. Round DSI LCD board. 1.1 Product marking Evaluation tools marked as ES or E are not yet qualified and are therefore not ready to be used as reference designs or in production. Any consequences arising from such usage will not be at STs charge. In no event will ST be liable for any customer usage of these engineering sample tools as reference designs or in production. E or ES marking examples of location: on the targeted STM32 that is soldered on the board (For an illustration of STM32 marking, refer to the section Package information of the STM32 datasheet at www.st.com). next to the evaluation tool ordering part number, that is stuck or silkscreen printed on the board This board features a specific STM32 device version, which allows the operation of any stack or library. This STM32 device shows a U marking option at the end of the standard part number and is not available for sales. 1.2 Codification The meaning of the codification is explained in Table 2. The order code is mentioned on a sticker placed on the top or bottom side of the board. Table 2. Codification explanation 32XXYYZDISCOVERY Description Example:32L4R9IDISCOVERY MCU series in STM32 32-bit Arm 32XX STM32L4+ Series Cortex MCUs YY MCU product line in the series STM32L4R9 STM32 Flash memory size: Z 2 Mbytes I for 2 Mbytes 2/5 DB3241 Rev 3