ATmega644P 带有64K系统内可编程Flash存储器

Flash (Kbytes) 64
EEPROM (Kbytes) 2
SRAM (Bytes) 4096
Max I/O Pins 32
F.max (MHz) 20
Vcc (V) 1.8 - 5.5
10-bit A/D Channels 8
Analog Comparator Yes
16-bit Timers 1
8-bit Timer 2
Brown Out Detector Yes
Ext Interrupts 32
Hardware Multiplier Yes
Interrupts 31
On Chip Oscillator Yes
PWM Channels 6
RTC Yes
Self Program Memory Yes
SPI 1+USART
TWI Yes
UART 2
Watchdog Yes

Pb-Free Packages  

MLF (VQFN) 44
 PDIP 40
 TQFP 44

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.

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
ATmega644P 订购型号
Speed (MHz) Power Supply Ordering Code Package Operational Range
10 1.8 - 5.5V ATmega644PV-10AU
ATmega644PV-10PU
ATmega644PV-10MU
44A
40P6
44M1
Industrial (-40°C to 85°C)
10 2.7 - 5.5V ATmega644P-20AU
ATmega644P-20PU
ATmega644P-20MU
44A
40P6
44M1
Industrial (-40°C to 85°C)
ATmega644P 应用技术支持与电子电路设计开发资源下载
  1. ATMEL 爱特梅尔AVR 微控制器ATmega644P 数据手册DataSheet 下载. PDF
  2. Atmel 爱特梅尔AVR 微控制器简介.PDF (编号:Tech AVR 000)MLF 32
  3. 面向新手的AVR 开发工具,及基本知识.PDF(编号:Tech AVR 001)
  4. 使用AVR 定时/计数器的PWM功能设计要点 .PDF
  5. AVR指令集(版本:0856G–AVR–07/08)
  6. AVR 微控制器汽车应用解决方案 . pdf
  7. AVR 微控制器选型指南. pdf
  8. ATMEL 爱特梅尔公司全线产品目录. pdf