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ATMEGA644A-AU - Microchip

Description: ATMEGA644A-AU, 8 bit AVR Microcontroller 20MHz 2 kB, 64 kB Flash, 4 kB RAM, I2C 44-Pin TQFP

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ATMEGA644A-AU - Microchip PCB footprint - Quad Flat Packages - Quad Flat Packages - 44PINSTQFP
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ATMEGA644A-AU - Microchip  - 3D model - Quad Flat Packages - 44PINSTQFP
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ATMEGA644A-AU Details

  • Manufacturer Part Number:

    ATMEGA644A-AU

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    TQFP-44

  • Pin Count:

    44

  • Manufacturer Package Code:

    TQFP-44

  • Country Of Origin:

    Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.31.00.01

  • Factory Lead Time:

    7 Weeks

  • Manufacturer:

    Microchip Technology Inc

  • YTEOL:

    14

  • Has ADC:

    YES

  • Additional Feature:

    IT ALSO OPERATES FROM 1.8V TO 5.5 V AT 4 MHZ

  • Bit Size:

    8

  • Boundary Scan:

    YES

  • CPU Family:

    AVR RISC

  • Clock Frequency-Max:

    20 MHz

  • DAC Channels:

    NO

  • DMA Channels:

    NO

  • Format:

    FIXED POINT

  • Integrated Cache:

    NO

  • JESD-30 Code:

    S-PQFP-G44

  • JESD-609 Code:

    e3

  • Length:

    10 mm

  • Low Power Mode:

    YES

  • Moisture Sensitivity Level:

    3

  • Number of External Interrupts:

    3

  • Number of I/O Lines:

    32

  • Number of Serial I/Os:

    2

  • Number of Terminals:

    44

  • Number of Timers:

    3

  • On Chip Data RAM Width:

    8

  • On Chip Program ROM Width:

    8

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • PWM Channels:

    YES

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TQFP

  • Package Equivalence Code:

    TQFP44,.39SQ,31

  • Package Shape:

    SQUARE

  • Package Style:

    FLATPACK, THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • RAM (bytes):

    4096

  • RAM (words):

    4096

  • ROM (words):

    65536

  • ROM Programmability:

    FLASH

  • Seated Height-Max:

    1.2 mm

  • Speed:

    20 MHz

  • Supply Current-Max:

    9 mA

  • Supply Voltage-Max:

    5.5 V

  • Supply Voltage-Min:

    5 V

  • Supply Voltage-Nom:

    5 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.8 mm

  • Terminal Position:

    QUAD

  • Time@Peak Reflow Temperature-Max (s):

    40

  • Width:

    10 mm

  • uPs/uCs/Peripheral ICs Type:

    MICROCONTROLLER, RISC

ATMEGA644A-AU Frequently Asked Questions (FAQs)

  • The maximum clock frequency for the ATMEGA644A-AU is 20 MHz.
  • The ATMEGA644A-AU has 64 KB of flash memory.
  • Yes, the ATMEGA644A-AU can operate at 3.3V, but it is recommended to use a voltage regulator to ensure stable operation.
  • The maximum current consumption of the ATMEGA644A-AU is approximately 15 mA at 5V and 20 MHz.
  • No, the ATMEGA644A-AU does not have built-in USB support. However, it can be implemented using external USB controllers or bit-banging techniques.

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ATMEGA644A-AU Overview

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About Microchip

Microchip Technology Inc. is a leading manufacturer of microcontrollers and semiconductor devices for a wide range of applications in the aerospace, automotive, consumer electronics, industrial, and medical industries. Alongside a comprehensive product portfolio, Microchip Technology Inc. also provides easy-to-use development tools that enable engineers to create optimal designs quickly with minimal iterations to reduce risk while lowering total system costs to market. Headquartered in Chandler, Arizona, th

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