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ATMEGA644
发布时间:2015/8/3 阅读:1429次

ATmega644PA 概述

The ATmega644PA is a high-performance picoPower 8-bit AVR RISC-based microcontroller, ATmega644PA combines 64KB ISP flash memory with read-while-write capabilities, 2KB EEPROM, 4KB SRAM, 32 general purpose I/O lines, 32 general purpose working registers, a real time counter, three flexible timer/counters with compare modes and PWM, two USARTs, a byte oriented 2-wire serial interface, an 8-channel 10-bit A/D converter with optional differential input stage with programmable gain, programmable watchdog timer with internal oscillator, SPI serial port, a JTAG (IEEE 1149.1 compliant) test interface for on-chip debugging and programming, and six software selectable power saving modes. The device operates between 1.8-5.5 volts.

By executing powerful instructions in a single clock cycle, the device achieves throughputs approaching 1 MIPS per MHz, balancing power consumption and processing speed.

ATmega644PA 特性

  • ATmega644PA is a picoPower technology AVR Microcontroller
  • 64KB self-programming Flash Program Memory
  • 4KB SRAM
  • 2KB EEPROM
  • 8 Channel 10-bit A/D-converter
  • JTAG interface for on-chip-debug
  • Up to 20 MIPS throughput at 20 MHz
  • 1.8 - 5.5V Operation Voltage
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2015/8/3  ATMEGA644PA
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