解密 SST89C54单片机

根据客户的具体需要对单片机本身的加解密特征以及解密难度等方面与客户进行沟通，并最终选择最安全可靠、价格合理的解密方案供客户参考。
    SST89C54单片机 FEATURES:
　　Multi-Purpose 8-bit 8051 Family Compatible Microcontroller Unit (MCU) with Embedded SuperFlash Memory
　　Fully Software and Development Toolset Compatible as well as Pin-For-Pin Package Compatible with Standard 8xC5x Microcontrollers
　　256 Bytes Register/Data RAM
　　20/36 KByte Embedded High Performance Flexible SuperFlash EEPR
OM　　– One 16/32 KByte block (128-Byte sector size)
　　– One 4 KByte block (64-Byte sector size)
　　– Individual Block Security Lock with Softlock feature
　　– 87C5x Programmer Compatible
　　– Concurrent Operation during In-Application Programming?(IAP?)
　　– Memory Re-Mapping for Interrupt Support during IAP
　　Support External Address Range up to 64 KByte of Program and Data Memory
　　High Current Drive on Port 1 (5, 6, 7) pins
　　Three 16-bit Timer/Counter
　　Programmable Serial Port (UART)
　　Six Interrupt Sources at 2 Priority Levels
　　Selectable Watchdog Timer (WDT)
　　Four 8-bit I/O Ports (32 I/O Pins)
　　TTL- and CMOS-Compatible Logic Levels
　　Extended Power-Saving Modes
　　– Idle Mode
　　– Power Down Mode with External Interrupt Wake-up
　　– Standby (Stop Clock) Mode
　　High Speed Operation at 5 Volts (0 to 33MHz)
　　Low Voltage (2.7V) Operation (0 to 12MHz)
　　PDIP-40, PLCC-44 and TQFP-44 Packages
　　Temperature Ranges:
　　– Commercial (0°C to +70°C)
　　– Industrial (-40°C to +85°C)