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疑难芯片解密-ATtiny28L解密

来源:芯片解密-龙芯世纪   时间:2010-09-28   阅读:2307


  ATtiny28L解密--ATTINT是龙芯世纪解密事业部芯片解密成功案例中的经典一例,为了广大用户对芯片解密的了解,我们提供C8051F713单片机的主要功能特征介绍以供参考,以便为后续的技术合作和项目沟通提供方便。针对芯片解密,龙芯世纪解密事业部早先就曾针对客户的解密需求进行过方案开发,而近期在该芯片解密中的技术突破将为更多客户带来实实在在的利益。
  以下是我们对ATtiny28L单片机的简单介绍供各位参考:
  The ATtiny28 is a low-power CMOS 8-bit microcontroller based on the AVR RISC architecture.By executing powerful instructions in a single clock cycle, the ATtiny28 achieves throughputs approaching 1 MIPS per MHz, allowing the system designer to optimize power consumption versus processing speed. The AVR core combines a rich instruction set with 32 general-purpose working registers. All the 32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be accessed in one single instruction executed in one clock cycle. The resulting architecture is more code efficient while achieving throughputs up to ten times faster than conventional CISC microcontrollers.
  ATtiny28L  Features
  Utilizes the AVR? RISC Architecture
  AVR - High-performance and Low-power RISC Architecture
  - 90 Powerful Instructions - Most Single Clock Cycle Execution
  - 32 x 8 General-purpose Working Registers
  - Up to 4 MIPS Throughput at 4 MHz
  Nonvolatile Program Memory
  - 2K Bytes of Flash Program Memory
  - Endurance: 1,000 Write/Erase Cycles
  - Programming Lock for Flash Program Data Security
  Peripheral Features
  - Interrupt and Wake-up on Low-level Input
  - One 8-bit Timer/Counter with Separate Prescaler
  - On-chip Analog Comparator
  - Programmable Watchdog Timer with On-chip Oscillator
  - Built-in High-current LED Driver with Programmable Modulation
  Special Microcontroller Features
  - Low-power Idle and Power-down Modes
  - External and Internal Interrupt Sources
  - Power-on Reset Circuit with Programmable Start-up Time
  - Internal Calibrated RC Oscillator
  Power Consumption at 1 MHz, 2V, 25°C
  - Active: 3.0 mA
  - Idle Mode: 1.2 mA
  - Power-down Mode: <1 μA
  I/O and Packages
  - 11 Programmable I/O Lines, 8 Input Lines and a High-current LED Driver
  - 28-lead PDIP, 32-lead TQFP, and 32-pad MLF
  Operating Voltages
  - VCC: 2.7V - 5.5V for the ATtiny28L
  Speed Grades
  - 0 - 4 MHz For the ATtiny28L