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汽车级ATmega644P带有64K系统内可编程Flash存储器

64-Kbyte self-programming Flash Program Memory, 4-Kbyte SRAM, 2-KByte EEPROM, 8 Channel 10-bit A/D-converter. JTAG interface for on-chip-debug. Up to 20 MIPS throughput at 20 MHz. 1.8 - 5.5 Volt Operation.

• 16KB 系统内可编程Flash存储器：ATmega164P 汽车级
• 32KB 系统内可编程Flash存储器：ATmega324P 汽车级
• 64KB 系统内可编程Flash存储器：ATmega644P 汽车级

The ATmega164P/324P/644P is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega164P/324P/644P achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.

ATmega644P 特性

• High-performance, Low-power AVR? 8-bit Microcontroller

• Advanced RISC Architecture
  – 131 Powerful Instructions – Most Single-clock Cycle Execution
  – 32 x 8 General Purpose Working Registers
  – Fully Static Operation
  – Up to 20 MIPS Throughput at 20 MHz
  – On-chip 2-cycle Multiplier

• High Endurance Non-volatile Memory segments
  – 16/32/64K Bytes of In-System Self-programmable Flash program memory
  – 512B/1K/2K Bytes EEPROM
  – 1/2/4K Bytes Internal SRAM
  – Write/Erase Cycles: 10,000 Flash/ 100,000 EEPROM
  – Data retention: 20 years at 85°C/100 years at 25°C
  – Optional Boot Code Section with Independent Lock Bits
  In-System Programming by On-chip Boot Program
  True Read-While-Write Operation
  – 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 Prescalers and Compare Modes
  – One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture Mode
  – Real Time Counter with Separate Oscillator
  – Six PWM Channels
  – 8-channel, 10-bit ADC
  Differential mode with selectable gain at 1x, 10x or 200x
  – Byte-oriented Two-wire Serial Interface
  – Two Programmable Serial USART
  – Master/Slave SPI 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 RC 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
  – 32 Programmable I/O Lines
  – 40-pin PDIP, 44-lead TQFP, 44-pad QFN/MLF (ATmega164P/324P/644P)
  – 44-pad DRQFN (ATmega164P)

• Operating Voltages
  – 1.8 - 5.5V for ATmega164P/324P/644PV
  – 2.7 - 5.5V for ATmega164P/324P/644P

• Speed Grades
  – ATmega164P/324P/644PV: 0 - 4MHz @ 1.8 - 5.5V, 0 - 10MHz @ 2.7 - 5.5V
  – ATmega164P/324P/644P: 0 - 10MHz @ 2.7 - 5.5V, 0 - 20MHz @ 4.5 - 5.5V

• Power Consumption at 1 MHz, 1.8V, 25°C for ATmega164P/324P/644P
  – Active: 0.4 mA
  – Power-down Mode: 0.1μA
  – Power-save Mode: 0.6μA (Including 32 kHz RTC)

ATmega644P 订购型号

ATmega644P 技术支持

1. ATMEL 爱特梅尔AVR 微控制器ATmega324P 数据手册DataSheet 下载. PDF（简洁版）
2. ATMEL 爱特梅尔AVR 微控制器ATmega324P 数据手册DataSheet 下载. PDF（完整版）
3. Atmel 爱特梅尔AVR 微控制器简介.PDF (编号:Tech AVR 000)MLF 32
4. 面向新手的AVR 开发工具,及基本知识.PDF(编号:Tech AVR 001)
5. 使用AVR 定时/计数器的PWM功能设计要点 .PDF (编号:Tech AVR 002)
6. AVR指令集（版本：0856G–AVR–07/08）
7. 相关产品选型（ Excel 文档格式）
8. AVR 微控制器汽车应用解决方案 . pdf
9. AVR 微控制器选型指南. pdf
10. ATMEL 爱特梅尔公司全线产品目录. pdf