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SAB-R4400是一个150MHz 单片微处理器。该64位简化指令系统计算(RISC)微处理器已超过了100SPECmarks 栅格并含有2.3兆兆(trillion)个晶体管和32K 字节的板上存储器。它是全管脚、软件与 SAB-R4000兼容的。SAB-R4400处理器在内部以外部输入时钟为2X 的时钟速度操作,并在外部75MHz/内部150MHz、67MHz/134MHz 和50M
SAB-R4400 is a 150MHz monolithic microprocessor. The 64-bit RISC microprocessors have exceeded the 100SPECmarks grid and contain 2.3 trillion transistors and 32K bytes of on-board memory. It is fully pin-out, software compatible with SAB-R4000. The SAB-R4400 processor operates internally at 2X clock speed with an external input clock and operates at external 75MHz / internal 150MHz, 67MHz / 134MHz and 50M