# Development Board Model Guide ## Development Board Numbering Rules SF32LB5x-DevKit-Xxxx-AaaaBbbbCccc ### Main Category *SF32LB5x-DevKit* - SF: chip series - SiFli, company logo - 32: chip series - 32: 32-bit MCU series - LB: series attribute - LB：Low-power Bluetooth MCU - VB: Bluetooth MCU using a RISC-V processor - 5: processor series - 5: based on a 32-bit Arm Cortex-M33 Star-MC1 processor, or a RISC-V processor with similar computing performance - 0: based on a 32-bit Arm Cortex-M0+ processor - x: high-, mid-, or low-end positioning - 8: flagship product in the 5x series - 6/5: mid-range products in the 5x series - 2: value-oriented product in the 5x series ### Subcategory *Xxxx* - 3p3: does not support lithium battery power supply; standard 3.3 V power supply series - Vbat: series supporting lithium battery power supply - y: subcategory dedicated to 52 modules - 1: series supporting lithium battery power supply, with an onboard SF32LB525UC6/SF32LB527UD6 chip - A: does not support lithium battery power supply; standard 3.3 V power supply series, with an onboard SF32LB52BU36/SF32LB52BU36 chip and co-packaged FLASH - B: does not support lithium battery power supply; standard 3.3 V power supply series, with an onboard SF32LB52DUB6/SF32LB52JUD6 chip and co-packaged PSRAM ### Configuration Category *AaaaBbbbCccc* - Aaaa: variable Flash capacity - N16：16MB QSPI-NOR Flash - A128：128MB SPI-Nand Flash - D128：128MB SD-Nand Flash - E4： 4GB eMMC - Bbbb: PSRAM capacity - R4：4MB OPI-PSRAM - R8：8MB OPI-PSRAM - R12：4MB+8MB OPI-PSRAM - R16：16MB OPI/HPI-PSRAM - R32：16+16MB HPI-PSRAM - R64：32+32MB HPI-PSRAM - Cccc: standard Flash capacity - N1：1MB QSPI-NOR Flash - N4：4MB QSPI-NOR Flash ## SF32LB52-DevKit-Nano Development board code| Chip code | Variable Flash capacity | PSRAM capacity | Standard Flash | Ambient temperature | Development board dimensions (mm) :- | :-|:-|:-|:-|:-|:- SF32LB52-DevKit-Nano-N4 | SF32LB52BU56 | None | None | 4MB QSPI-NOR | -40~85C | 51*20.32 SF32LB52-DevKit-Nano-N16R16 | SF32LB52JUD6 | 16MB QSPI-NOR | 16MB OPI-PSRAM | None | -40~85C | 51*20.32 SF32LB52-DevKit-Nano-A128R16 | SF32LB52JUD6 | 128MB QSPI-NAND | 16MB OPI-PSRAM | None | -40~85C | 51*20.32 ## SF32LB52-DevKit-Core Development board code| Chip code | Variable Flash capacity | PSRAM capacity | Standard Flash | Ambient temperature | Development board dimensions (mm) :- | :-|:-|:-|:-|:-|:- SF32LB52-DevKit-Core-3p3-N4 | SF32LB52BU56 | None | None | 4MB QSPI-NOR | -40~85C | 68*31 SF32LB52-DevKit-Core-3p3-N16R16 | SF32LB52JUD6 | 16MB QSPI-NOR | 16MB OPI-PSRAM | None | -40~85C | 68*31 SF32LB52-DevKit-Wlan-Core-3p3-N16R16 | SF32LB52JUD6 | 16MB QSPI-NOR | 16MB OPI-PSRAM | None | -40~85C | 82*62 ## SF32LB52-DevKit-LCD * For use with SF32LB52-MOD-1, SF32LB52-MOD-A, and SF32LB52-MOD-B series modules * Recommended model: SF32LB52-DevKit-LCD-1 * Development board power supply: USB-Type-C or lithium-ion battery * Supports charging. A 450 mAh single-cell polymer lithium battery is recommended, with a nominal voltage of 3.7 V and a fully charged voltage of 4.2 V * Onboard CH343P chip, supporting one USB-to-UART debug port * Onboard 1x switch button, 1x function button, and 1x reset button * Onboard SPI, DSPI, QSPI, and 8080 display interfaces, using a 22p, 0.5 mm-pitch FPC adapter connector * Onboard 40p, 2x20p dual-row header signal adapter interface * Onboard 1-channel MEMS MIC * Onboard 1-channel audio amplifier, supporting connection of 1-channel SPK (up to 3 W/4 ohms) * Onboard 1x RGBLED, 1x Charger LED, 1x GPIO-controlled LED, and 1x power indicator LED * Onboard TF card socket with SPI interface * SF32LB52-DevKit-LCD-A can connect to an external NOR Flash or external SDIO peripherals, including WiFi, SD-NAND, or eMMC (4-line mode) Development board code| Module code | Flash capacity | PSRAM capacity | Ambient temperature | Development board dimensions (mm) :- | :-|:-|:-|:-|:- SF32LB52-DevKit-LCD-1-N16R8 | SF32LB52-MOD-1-N16R8 | 16MB QSPI-NOR | 8MB OPI-PSRAM | -40~85C | 65*38 SF32LB52-DevKit-LCD-1-A128R16 | SF32LB52-MOD-1-A128R16 | 128MB QSPI-NAND | 16MB OPI-PSRAM | -40~85C | 65*38 ## SF32LB56-DevKit-LCD * For use with SF32LB56-MOD series modules * Development board power supply: USB-Type-C * Onboard CH343K chip, supporting two USB-to-UART debug ports * Onboard SWD interface, 4p-2.54 mm-pitch single-row header * Supports Mode boot mode jumper * Onboard 1x switch button, 1x function button, and 1x reset button * Onboard MIPI-DPI (RGB-24bit) display interface, using a 40p, 0.5 mm-pitch FPC adapter connector, compatible with the ALIENTEK RGB interface pin order * Onboard 40p, 2x20p dual-row header signal adapter interface * Onboard 1-channel MEMS MIC * Onboard 1-channel audio amplifier, supporting connection of 1-channel SPK (up to 3 W/4 ohms) * Onboard 1x RGBLED, 1x GPIO-controlled LED, and 1x power indicator LED * Onboard TF card socket with SDIO interface Development board code| Module code | Flash capacity | PSRAM capacity | Standard Flash | Ambient temperature | Development board dimensions (mm) :-| :-|:-|:-|:-|:-|:- SF32LB56-DevKit-LCD-N16R12N1 | SF32LB56-MOD-N16R12N1 | 16MB QSPI-NOR | 4+8MB OPI-PSRAM | 1MB QSPI-NOR | -40~85C | 65*38 SF32LB56-DevKit-LCD-A128R12N1 | SF32LB56-MOD-A128R12N1 | 128MB QSPI-NAND | 4+8MB OPI-PSRAM | 1MB QSPI-NOR | -40~85C | 65*38 ## SF32LB58-DevKit-LCD * For use with SF32LB58-MOD series modules * Development board power supply: USB-Type-C * Onboard CH343K chip, supporting two USB-to-UART debug ports * Onboard SWD interface, included in the 40p dual-row header * Supports Mode boot mode jumper * Onboard 1x switch button, 1x function button, and 1x reset button * Onboard MIPI-DSI (2lane) display interface, using a 30p, 0.5 mm-pitch FPC adapter connector * Onboard MIPI-DPI (RGB-24bit) display interface, using a 40p, 0.5 mm-pitch FPC adapter connector, compatible with the ALIENTEK RGB interface pin order * Onboard dual 40p, 2x20p dual-row header signal adapter interfaces * Onboard 1-channel MEMS MIC * Supports 2-channel audio ADC input, included in the 40p dual-row header * Onboard 2-channel audio amplifier outputs, supporting connection of 2-channel SPK (up to 3 W/4 ohms), included in the 40p dual-row header * Onboard 1x RGBLED, 2x GPIO-controlled LEDs, and 1x power indicator LED * Onboard TF card socket with SDIO interface Development board code| Module code | Flash capacity | PSRAM capacity | Standard Flash capacity | Ambient temperature | Development board dimensions (mm) :-| :-|:-|:-|:-|:-|:- SF32LB58-DevKit-LCD-N16R32N1 | SF32LB58-MOD-N16R32N1 | 16MB QSPI-NOR | 16+16MB HPI-PSRAM | 1MB QSPI-NOR | -40~85C | 65*50 SF32LB58-DevKit-LCD-A128R32N1 | SF32LB58-MOD-A128R32N1 | 128MB QSPI-NAND | 16+16MB HPI-PSRAM | 1MB QSPI-NOR | -40~85C | 65*50 ## SF32-OED-6'-EDP * For use with the SF32LB52-MOD-1 module * Development board power supply: lithium-ion battery * Supports charging, with a USB-Type-C charging port. A 1500 mAh single-cell polymer lithium battery is recommended, with a nominal voltage of 3.7 V and a fully charged voltage of 4.2 V * Onboard CH340N chip, supporting one USB-to-UART debug port * Onboard 3 GPADC buttons * Onboard x8 EDP display interface, using a 34p, 0.5 mm-pitch FPC adapter connector * Onboard touchscreen interface, using an 8p, 0.5 mm-pitch FPC adapter connector * Onboard 1-channel MEMS MIC * Onboard 1-channel audio amplifier, supporting connection of 1-channel SPK (up to 3 W/4 ohms) * Onboard 6-axis (accelerometer and gyroscope) IMU and temperature/humidity sensor * Onboard TF card socket with SPI interface Development board code| Module code | Flash capacity | PSRAM capacity | Ambient temperature | Development board dimensions (mm) :- | :-|:-|:-|:-|:- SF32-OED-6'-EDP-N16R8 | SF32LB52-MOD-1-N16R8 | 16MB QSPI-NOR | 8MB OPI-PSRAM | -40~85C | 106*64 SF32-OED-6'-EDP-A128R16 | SF32LB52-MOD-1-A128R16 | 128MB QSPI-NAND | 16MB OPI-PSRAM | -40~85C | 106*64