邦凯专业提供高效可靠的AT90PWM3B等AVR芯片解密服务，我们多年来在单片机解密领域的技术研究成果以及解密实践经验，能够为客户提供最具有可靠性和价格竞争优势的解密方案。
　　有AT90PWM3B解密需求者请直接与邦凯联系：
　　芯片解密咨询热线：086-0755-83003639
　　E-mail：market2@pcblab.net

　　在芯片解密、单片机解密、IC解密过程中，对于使用了防护层来保护ＥＥＰＲＯＭ单元的单片机来说，使用紫外光复位保护电路是不可行的。对于这种类型的单片机，一般使用微探针技术来读取存储器内容。在芯片封装打开后，将芯片置于显微镜下就能够很容易的找到从存储器连到电路其它部分的数据总线。由于某种原因，芯片锁定位在编程模式下并不锁定对存储器的访问。利用这一缺陷将探针放在数据线的上面就能读到所有想要的数据。在编程模式下，重启读过程并连接探针到另外的数据线上就可以读出程序和数据存储器中的所有信息。
　　以下提供对AT90PWM3B单片机基本功能特征的简单介绍：
　　AT90PWM3B Features
　　High Performance, Low Power AVR ? 8-bit Microcontroller
　　Advanced RISC Architecture
　　– 129 Powerful Instructions - Most Single Clock Cycle Execution
　　– 32 x 8 General Purpose Working Registers
　　– Fully Static Operation
　　– Up to 1 MIPS throughput per MHz
　　– On-chip 2-cycle Multiplier
　　Data and Non-Volatile Program Memory
　　– 8K Bytes Flash of In-System Programmable Program Memory
　　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
　　– 512 Bytes of In-System Programmable EEPROM
　　Endurance: 100,000 Write/Erase Cycles
　　– 512 Bytes Internal SRAM
　　– Programming Lock for Flash Program and EEPROM Data Security
　　On Chip Debug Interface (debugWIRE)
　　Peripheral Features
　　– Two or three 12-bit High Speed PSC (Power Stage Controllers) with 4-bit
　　Resolution Enhancement
　　Non Overlapping Inverted PWM Output Pins With Flexible Dead-Time
　　Variable PWM duty Cycle and Frequency
　　Synchronous Update of all PWM Registers
　　Auto Stop Function for Event Driven PFC Implementation
　　Less than 25 Hz Step Width at 150 kHz Output Frequency
　　PSC2 with four Output Pins and Output Matrix
　　– One 8-bit General purpose Timer/Counter with Separate Prescaler and Capture
　　Mode
　　– One 16-bit General purpose Timer/Counter with Separate Prescaler, Compare
　　Mode and Capture Mode
　　– Programmable Serial USART
　　Standard UART mode
　　16/17 bit Biphase Mode for DALI Communications
　　– Master/Slave SPI Serial Interface
　　– 10-bit ADC
　　Up To 11 Single Ended Channels and 2 Fully Differential ADC Channel Pairs
　　Programmable Gain (5x, 10x, 20x, 40x on Differential Channels)
　　Internal Reference Voltage
　　– 10-bit DAC
　　– Two or three Analog Comparator with Resistor-Array to Adjust Comparison
　　Voltage
　　– 4 External Interrupts
　　– Programmable Watchdog Timer with Separate On-Chip Oscillator
　　Special Microcontroller Features
　　– Low Power Idle, Noise Reduction, and Power Down Modes
　　– Power On Reset and Programmable Brown Out Detection
　　– Flag Array in Bit-programmable I/O Space (4 bytes)
　　– In-System Programmable via SPI Port
　　– Internal Calibrated RC Oscillator ( 8 MHz)
　　– On-chip PLL for fast PWM ( 32 MHz, 64 MHz) and CPU (16 MHz)
　　Operating Voltage: 2.7V - 5.5V
　　Extended Operating Temperature:
　　– -40°C to +105°