MC68HC705SR3 ic芯片解密（破解），首先需要对MC68HC705SR3单片机的基本特性、内部结构、加解密特征进行详细了解，特别是对于解密工程师来说，只有在深入分析单片机本身的结构特征与加密性能的基础上才能选择合适的解密方案以保证解密的可靠性和成功率。
　　这里，我们提供对MC68HC705SR3单片机的基本介绍，供客户及解密工程师参考借鉴，有MC68HC705SR3单片机解密（破解）需求者请与邦凯联系咨询更多解密详情

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　　关于MC68HC705SR3单片机
　　The MC68HC05SR3 HCMOS microcontroller is a member of the M68HC05 family of low-cost single-chip microcontrollers. This 8-bit microcontroller unit (MCU) contains on-chip oscillator,CPU, RAM, ROM, I/O, Timer, and Analog-to-Digital Converter. The MC68HC05SR3 is pin compatible with the MC6805R3 and is provided as a low power upgrade path for MC6805R3 applications. The low power advantage of CMOS is combined with the addition of I/O and port modifications which help eliminate external components in cost sensitive applications.
　　MC68HC705SR3 Features
　　Fully static chip design featuring the industry standard 8-bit M68HC05 core
　　Pin compatible with the MC6805R3
　　Power saving STOP, WAIT, and SLOW modes
　　3840 bytes of user ROM with security feature in MC68HC05SR3
　　3840 bytes of EPROM with security bit in MC68HC705SR3
　　192 bytes of RAM (64 bytes for stack)
　　32 bidirectional I/O lines
　　Keyboard interrupts
　　8-bit count-down timer with programmable 7-bit prescaler
　　On-chip crystal oscillator, with built-in capacitor for RC option
　　Second software programmable external interrupt line (IRQ2)
　　Direct LED drive capability on all ports
　　Programmable 20KW pull-up resistors integrated into I/O ports
　　Internal 100KW pull-up resistors on IRQ and RESET pins
　　Four channel 8-bit Analog to Digital Converter
　　Low Voltage Reset
　　Available in 40-pin PDIP, 42-pin SDIP and 44-pin QFP packages