atmega640V芯片的内部结构资料

　　龙芯世纪专业提供各类AVR单片机解密、专用IC解密、PLD芯片解密、SPLD芯片解密、FPGA/CPLD芯片解密等解密服务，，在芯片解密过程中，一般的解密工程师要为每一颗芯片选择最合适的解密方案，对芯片内部结构特征及其加解密性质进行技术分析和理解是一项必修课。能够为广大客户提供更专业、更权威的芯片解密信息，为此，这里我们提供对atmega640V芯片做简单介绍，供大家参考借鉴。
　　atmega640V的特性：
　　High Performance, Low Power AVR 8-Bit Microcontroller
　　Advanced RISC Architecture
　　135 Powerful Instructions Most Single Clock Cycle Execution
　　32 x 8 General Purpose Working Registers
　　Fully Static Operation
　　Up to 16 MIPS Throughput at 16 MHz
　　On-Chip 2-cycle Multiplier
　　Non-volatile Program and Data Memories
　　64K/128K/256K Bytes of In-System Self-Programmable Flash Endurance: 10,000 Write/Erase Cycles
　　Optional Boot Code Section with Independent Lock Bits In-System Programming by On-chip Boot Program True Read-While-Write Operation
　　4K Bytes EEPROM Endurance: 100,000 Write/Erase Cycles
　　8K Bytes Internal SRAM
　　Up to 64K Bytes Optional External Memory Space
　　Programming Lock for Software Security
　　JTAG (IEEE std. 1149.1 compliant) Interface
　　Boundary-scan Capabilities According to the JTAG Standard
　　Extensive On-chip Debug Support
　　Programming of Flash, EEPROM, Fuses, and Lock Bits through the JTAG Interface
　　Peripheral Features
　　Two 8-bit Timer/Counters with Separate Prescaler and Compare Mode
　　Four 16-bit Timer/Counter with Separate Prescaler, Compare- and Capture Mode
　　Real Time Counter with Separate Oscillator
　　Four 8-bit PWM Channels
　　Six/Twelve PWM Channels with Programmable Resolution from 2 to 16 Bits (ATmega1281/2561, ATmega640/1280/2560)
　　Output Compare Modulator
　　8/16-channel, 10-bit ADC (ATmega1281/2561, ATmega640/1280/2560)
　　Two/Four Programmable Serial USART (ATmega1281/2561,ATmega640/1280/2560)
　　Master/Slave SPI Serial Interface
　　Byte Oriented 2-wire Serial Interface
　　Programmable Watchdog Timer with Separate On-chip Oscillator
　　On-chip Analog Comparator
　　Interrupt and Wake-up on Pin Change
　　Special Microcontroller Features
　　Power-on Reset and Programmable Brown-out Detection
　　Internal Calibrated Oscillator
　　External and Internal Interrupt Sources
　　Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby
　　I/O and Packages
　　54/86 Programmable I/O Lines (ATmega1281/2561, ATmega640/1280/2560)
　　64-pad QFN/MLF, 64-lead TQFP (ATmega1281/2561)
　　100-lead TQFP, 100-ball CBGA (ATmega640/1280/2560)
　　芯片解密联系方式：
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