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关于SST89C58RC芯片：
SST89C58 are members of the FlashFlex51 family of 8-bit microcontrollers. The FlashFlex51 family is a family of embedded microcontroller products designed and manufactured on the state-of-the-art SuperFlash CMOS semiconductor process technology.
As a member of the FlashFlex51 controller family, the SST89C58 uses the same powerful instruction set, has the same architecture, and is pin-for-pin compatible with standard 8xC5x microcontroller devices.
SST89C58 comes with 20/36 KByte of integrated on-chip flash EEPROM program memory using the patented and proprietary Silicon Storage Technology, Inc. (SST) CMOS SuperFlash EEPROM technology with the SST field enhancing tunneling injector split-gate memory cells. The SuperFlash memory is partitioned into 2 independent program memory blocks. The primary SuperFlash Block 0 occupies 16/32 KByte of internal program memory space and the secondary SuperFlash Block 1 occupies 4 KByte of SST89C58’s internal program memory space. The 4 KByte secondary SuperFlash block can be mapped to the highest or lowest location of the 64 KByte address space; it can also be hidden from the program counter and used as an independent EEPROM-like data memory. The flash memory blocks can be programmed via a standard 87C5x OTP EPROM programmer fitted with a special adapter and firmware for SST89C58 devices. During the power-on reset, the SST89C58 can be configured as a master for source code storage or as a slave to an external host for In-Application Programming (IAP) operation. SST89C54/58 is designed to be programmed “In-System” and “In-Application” on the printed circuit board for maximum flexibility.
The device is pre-programmed with a sample bootstrap loader in the memory (see Note 1), demonstrating the initial user program code loading or subsequent user code updating via the “IAP” operation.
