The SF32LB52-DevKit-Nano is a development board based on the SiChes Technology SF32LB52BU56/SF32LB52JUD6 chips, with dimensions of only 21mm*51mm. The board edge is designed with postage stamp hole), making it convenient for developers to use in various scenarios. The development board supports GPIO, UART, I2C, SPI, LCD, I2S, GPADC, PWM, and analog audio input/output.
This development board has the following features:
Board Type:
-N4: Equipped with the SF32LB52BU56 chip, configured as follows:
Integrated configuration:
4MB NOR Flash, interface frequency 96MHz
-R16N16: Equipped with the SF32LB52JUD6 chip, configured as follows:
Integrated configuration:
16MB OPI-PSRAM, interface frequency 144MHz
Equipped with 128Mb QSPI-NOR Flash, interface frequency 72MHz, STR mode
Crystals
48MHz crystal
32.768KHz crystal
Antenna
Equipped with a PCBA antenna
GPIO
LCC half-hole supports 17 GPIOs
LGA pins support 13 GPIOs
UART-I2C-GPTIM
3x UART
4x I2C
2x GPTIM
All GPIOs support configuration as UART, I2C, and GPTIM
SPI
2x SPI
GPADC
3x GPADC
Display
FPC16P, 0.5mm pitch connector for display expansion
SPI/DSPI/Quad SPI, supports DDR mode QSPI display interface
Supports I2C interface touch screen
Supports 1.85 inch AMOLED screen via 16p to 22p ribbon cable
Audio
Supports audio ADC input, can connect to analog or silicon microphones
Supports PDM digital microphone input
Analog audio output, requires external Class-AB/D audio PA to drive the speaker
All interfaces are exposed through LCC half-holes
USB
Type C-UART interface, equipped with CH340N serial chip, for program download and software debugging, can supply power
USB interface, supports USB2.0 FS, exposed through LCC half-holes
Buttons
1x Function button
1x Power button, supports long press (10s) reset function
LEDs
2x LEDs, GPIO controlled
Power
Powered via USB Type-C interface
Equipped with VBUS 5V to 3.3V LDO chip
Equipped with power switch, can be controlled by the RTS# pin of CH340N to reset the MCU
Pinout Definition
