产品特性
* 先进的RISC结构
– 130 条指令 – 大多数指令执行时间为单个时钟周期
– 32 个8 位通用工作寄存器
– 全静态工作
– 工作于16 MHz 时性能高达16 MIPS
– 只需两个时钟周期的硬件乘法器
* 非易失性程序和数据存储器
– 8K 字节的系统内可编程Flash
擦写寿命: 10,000 次
– 具有独立锁定位的可选Boot 代码区
通过片上Boot 程序实现系统内编程
真正的同时读写操作
– 512 字节的EEPROM
擦写寿命: 100,000 次
– 1K 字节的片内SRAM
– 可以对锁定位进行编程以实现用户程序的加密
*外设特点
– 两个具有独立预分频器8 位定时器计数器 ,其中之一有比较功能
– 一个具有预分频器、比较功能和捕捉功能的16 位定时器 计数器
– 具有独立振荡器的实时计数器RTC
– 三通道PWM
– TQFP 与MLF封装的 8 路ADC
AVR ATmega8
Features
* Advanced RISC Architecture
– 130 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
* Nonvolatile Program and Data Memories
– 8K Bytes of In-Sysble Flash
Endurance: 10,000 Write/Erase tem Self-ProgrammaCycles
– Optional Boot Code Section with Independent Lock Bits
In-System Programming by On-chip Boot Program
True Read-While-Write Operation
– 512 Bytes EEPROM
Endurance: 100,000 Write/Erase Cycles
– 1K Byte Internal SRAM
– Programming Lock for Software Security
* Peripheral Features
– Two 8-bit Timer/Counters with Separate Prescaler, one Compare Mode
– One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture Mode
– Real Time Counter with Separate Oscillator
– Three PWM Channels
– 8-channel ADC in TQFP and MLF package
Six Channels 10-bit Accuracy
8700字
