Tang Nano 20K is a core board that uses the high-cloud semiconductor GW2AR-18 QN88. The chip has 20,736 logic lookup tables (LUT4) and 15,552 registers (FF), with two PLLs inside and multiple DSP units supporting 18-bit x 18-bit multiplication to accelerate digital operations. The board is equipped with the BL616 chip as FPGA JTAG downloader and serial communication with the FPGA. The default 27MHz crystal oscillator is used on the board for clock multiplication required for HDMI display, and MS5351 clock generator chip is additionally installed to generate various required clocks as needed stop.
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