Tang Nano 20K is a core board using GOWIN Semiconductor GW2AR-18 QN88. The chip has 20736 logical lookup tables (LUT4) and 15552 registers (FF). There are two PLLs inside and multiple DSP units. Supports 18-bit x 18-bit multiplication to number operations.It has built-in low-latency 64Mbits SDRAM, making it easier to run the emulator and better to run soft-core Linux systems.The onboard BL616 chip serves as the FPGA JTAG downloader and serial port for communication with the FPGA.The board uses a 27MHz crystal oscillator by default to multiply the clock required for -compatible display, and is also equipped with an MS5351 clock generation chip to generate a of required clocks at will.The onboard download chip has been upgraded to a USB2.0 interface, with the functions of high-speed JTAG download, serial communication, high-speed SPI reception, and precise clock configuration.Note:Due to different production batches, the appearance is different, which does not affect the use.Colour:BlackMaterial:PCB+electronic componentsPackage Contents:1 * core board1 * data cable1 * breadboard2 * DS2 controller2 * DS2 controller adapter boardOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.