微控制器 - MCU

ATMEGA644-20MU

MCU 8-bit AVR RISC 64KB Flash 3.3V/5V 44-Pin QFN EP Tray

Microchip Technology

产品技术规范

• 欧盟RoHS指令

  Compliant

• 美国出口管制分类ECCN编码

  EAR99

• 环保无铅

  Active

• 美国海关商品代码

  8542.31.00.15

• SVHC

  Yes

• Automotive

  No

• PPAP

  No

• Family Name

  ATmega

• Instruction Set Architecture

  RISC

• Device Core

  AVR

• Core Architecture

  AVR

• Maximum CPU Frequency (MHz)

  20

• Maximum Clock Rate (MHz)

  20

• Data Bus Width (bit)

  8

• Program Memory Type

  Flash

• Program Memory Size

  64KB

• RAM Size

  4KB

• Maximum Expanded Memory Size

  64KB

• Programmability

  Yes

• Interface Type

  SPI/USART

• Number of I/Os

  32

• No. of Timers

  3

• PWM

  6

• Number of ADCs

  1

• ADC Channels

  8

• ADC Resolution (bit)

  10

• USART

  1

• UART

  0

• USB

  0

• SPI

  1

• I2C

  0

• I2S

  0

• CAN

  0

• Ethernet

  0

• Watchdog

  1

• Analog Comparators

  1

• Minimum Operating Supply Voltage (V)

  2.7

• Typical Operating Supply Voltage (V)

  3.3|5

• Maximum Operating Supply Voltage (V)

  5.5

• Minimum Operating Temperature (°C)

  -40

• Maximum Operating Temperature (°C)

  85

• Supplier Temperature Grade

  Industrial

• Packaging

  Tray

• Mounting

  Surface Mount

• Package Height

  0.88

• Package Width

  7

• Package Length

  7

• PCB changed

  44

• Standard Package Name

  QFN

• Supplier Package

  QFN EP

• Pin Count

  44

• Lead Shape

  No Lead