全新原装!库房现货!(数量详谈)产品描述l         Compatible with MCS-51™ Productsl         4K Bytes of User Programmable QuickFlash™ Memoryl         Fully Static Operation: 0 Hz to 24 MHzl         Three-Level Program Memory Lockl         128 x 8-Bit Internal RAMl         32 Programmable I/O Linesl         Two 16-Bit Timer/Countersl         Six Interrupt Sourcesl         Programmable Serial Channell         Low Power Idle and Power Down Modes