Microchip ATMEGA644A-AU

Risc Microcontroller, 8-BIT, Flash, AVR Risc Cpu, 20MHZ, Cmos, PQFP44
Production

Price and Stock

Authorized Distributors
Non-Authorized Stocking Distributors
Non-Authorized Dealers

Technical Specifications

Physical
Case/PackageTQFP
Contact PlatingTin
MountSurface Mount
Number of Pins44
Technical
Core ArchitectureAVR
Data Bus Width8 b
Frequency20 MHz
InterfaceI2C, SPI, UART, USART
Max Frequency20 MHz
Max Operating Temperature85 °C
Max Supply Voltage5.5 V
Memory Size64 kB
Memory TypeFLASH
Min Operating Temperature-40 °C
Min Supply Voltage1.8 V
Number of ADC Channels8
Number of I2C Channels1
Number of I/Os32
Number of Programmable I/O32
Number of PWM Channels6
Number of SPI Channels1
Number of Timers/Counters3
Oscillator TypeInternal
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
RAM Size4 kB
Schedule B8542310000
Watchdog TimerYes
Dimensions
Height1.05 mm
Length10 mm
Width10 mm

Documents

Download datasheets and manufacturer documentation for Microchip ATMEGA644A-AU.

element14 APAC
Datasheet34 pages15 years ago
Datasheet0 pages0 years ago
Microchip
Datasheet672 pages4 years ago
_legacy Avnet
Datasheet584 pages11 years ago
Electro Sonic
Datasheet0 pages0 years ago
Components Direct
Datasheet584 pages12 years ago
Future Electronics
Datasheet0 pages0 years ago
Datasheet0 pages0 years ago
Upverter
Datasheet0 pages0 years ago

Inventory History

3 month trend:
+81.77%

Supply Chain

Lifecycle StatusProduction (Last Updated: 3 years ago)

Engineering Resources

View Evaluation kits and Reference designs for Microchip ATMEGA644A-AU.

Related Parts

Descriptions

Descriptions of Microchip ATMEGA644A-AU provided by its distributors.

RISC Microcontroller, 8-Bit, FLASH, AVR RISC CPU, 20MHz, CMOS, PQFP44
MCU 8-bit ATmega AVR RISC 64KB Flash 2.5V/3.3V/5V 44-Pin TQFP - Trays
IC MCU 8BIT 64KB FLASH 44TQFP / 8-bit Microcontroller with 16/32/64/128K Bytes In-System Programmable Flash
ATmega Series 64 KB Flash 4 KB SRAM 20 MHz 8-Bit Microcontroller - TQFP-44
AVR ATmega Microcontroller 8-bit 20MHz 64KB FLASH TQFP44
MCU, 8BIT, ATMEGA, 20MHZ, TQFP-44; Product Range: AVR ATmega Family ATmega64 Series Microcontrollers; CPU Speed: 20MHz; Program Memory Size: 64KB; RAM Memory Size: 4KB; No. of Pins: 44Pins; MCU Case Style: TQFP; No. of I/O's: 3
Device Core = AVR / Data Bus Width bit = 8 / Instruction Set Architecture = RISC / Family Name = ATmega / Clock Frequency Max. MHz = 20 / Program Memory Type = Flash / Program Memory Size KB = 64 / Data Memory Size KB = 2 / RAM Memory Size KB = 4 / Interfaces = I²C / Interfaces = SPI / Interfaces = UART / ADC Channels = 8 / ADC Resolution bit = 10 / DAC Resolution bit = 10 / Number of Programmable I/Os = 32 / Number of Timers/Counters = 3 / Comparators = 1 / Supply Voltage Min. V = 1.8 / Supply Voltage Max. V = 5.5 / Operating Temperature Min. °C = -40 / Operating Temperature Max. °C = 85 / Package Type = TQFP / Pins = 44 / Mounting Type = SMD / Packaging = Tray / Length mm = 10 / Width mm = 10 / Height mm = 1

Manufacturer Aliases

Microchip has several brands around the world that distributors may use as alternate names. Microchip may also be known as the following names:

  • Microchip Technology
  • MICROCHI
  • MICROCHIP TECHNOLOGY INC
  • MICROC
  • MICROCH
  • MICROCHIP TECH
  • MCHP
  • MCRCH
  • MCP
  • MICROHIP
  • MICROSHIP
  • MICCHP
  • MTech
  • Microchip Technology / Atmel
  • MICROCHP
  • Microchip Technologies
  • Microchip / Microsemi
  • Atmel/Microchip
  • MICORCHIP
  • MICRIOCHIP
  • Atmel (Microchip Technology)
  • MICROCHIP (ATMEL)
  • MICHROCHIP
  • MICROCHIP TECHNOLOGY (VA)
  • MICROCHIPDIRECT

Part Number Aliases

This part may be known by these alternate part numbers:

  • ATMEGA 644A-AU
  • ATMEGA644A-AU.

Technical Specifications

Physical
Case/PackageTQFP
Contact PlatingTin
MountSurface Mount
Number of Pins44
Technical
Core ArchitectureAVR
Data Bus Width8 b
Frequency20 MHz
InterfaceI2C, SPI, UART, USART
Max Frequency20 MHz
Max Operating Temperature85 °C
Max Supply Voltage5.5 V
Memory Size64 kB
Memory TypeFLASH
Min Operating Temperature-40 °C
Min Supply Voltage1.8 V
Number of ADC Channels8
Number of I2C Channels1
Number of I/Os32
Number of Programmable I/O32
Number of PWM Channels6
Number of SPI Channels1
Number of Timers/Counters3
Oscillator TypeInternal
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
RAM Size4 kB
Schedule B8542310000
Watchdog TimerYes
Dimensions
Height1.05 mm
Length10 mm
Width10 mm

Documents

Download datasheets and manufacturer documentation for Microchip ATMEGA644A-AU.

element14 APAC
Datasheet34 pages15 years ago
Datasheet0 pages0 years ago
Microchip
Datasheet672 pages4 years ago
_legacy Avnet
Datasheet584 pages11 years ago
Electro Sonic
Datasheet0 pages0 years ago
Components Direct
Datasheet584 pages12 years ago
Future Electronics
Datasheet0 pages0 years ago
Datasheet0 pages0 years ago
Upverter
Datasheet0 pages0 years ago

Compliance

Environmental Classification
Lead FreeLead Free
Radiation HardeningNo
REACH SVHCNo SVHC
RoHSCompliant
Compliance Statements