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ATMEGA644A-MU

ATMEGA644A-MU

ATMEGA644A-MU

Microchip Technology

64KB 32K x 16 FLASH AVR 8-Bit Microcontroller AVR® ATmega Series ATMEGA644A 44 Pin 20MHz 44-VFQFN Exposed Pad

SOT-23

ATMEGA644A-MU Datasheet

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In-Stock: 0 items
Specifications
Name Value
Type Parameter
Factory Lead Time 7 Weeks
Lifecycle Status Production (Last Updated: 2 years ago)
Contact Plating Tin
Mount Surface Mount
Mounting Type Surface Mount
Package / Case 44-VFQFN Exposed Pad
Surface Mount YES
Number of Pins 44
Supplier Device Package 44-VQFN (7x7)
Number of Terminals 44
Mounting Style SMD/SMT
Interfaces SPI/USART
Data Converters A/D 8x10b
Package Tray
Base Product Number ATMEGA644
Mfr Microchip Technology
Product Status Active
Family Name ATmega
Instruction Set Architecture RISC
Dimensions 7.1 x 7.1 x 0.95mm
Typical Operating Supply Voltage 1.8 → 5.5 V
Package Type VQFN
Maximum Operating Temperature +85 °C
Minimum Operating Temperature -40 °C
MSL MSL 3 - 168 hours
Qualification -
Number of I/Os 32 I/O
Interface Type 2-Wire, SPI, USART
Manufacturer Microchip
Brand Microchip Technology / Atmel
Tradename AVR
RoHS Details
Schedule B 8542310000
Package Shape SQUARE
Number of I/O Lines 32
Operating Temperature -40°C~85°C TA
Packaging Tray
Series AVR® ATmega
Published 2008
Pbfree Code yes
Part Status Active
Moisture Sensitivity Level (MSL) 3 (168 Hours)
Number of Terminations 44
Max Operating Temperature 85 °C
Min Operating Temperature -40 °C
Terminal Position QUAD
Terminal Form NO LEAD
Terminal Pitch 0.5mm
Reach Compliance Code compliant
Frequency 20MHz
Base Part Number ATMEGA644A
Pin Count 44
JESD-30 Code S-PQCC-N44
Qualification Status Not Qualified
Supply Voltage-Max (Vsup) 5.5V
Power Supplies 2/5 V
Temperature Grade INDUSTRIAL
Interface I2C, SPI, UART, USART
Max Supply Voltage 5.5 V
Min Supply Voltage 1.8 V
Memory Size 64kB
Oscillator Type Internal
Number of I/O 32
Speed 20MHz
RAM Size 4K x 8
Memory Type FLASH
Voltage - Supply (Vcc/Vdd) 1.8V~5.5V
uPs/uCs/Peripheral ICs Type MICROCONTROLLER, RISC
Core Processor AVR
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Program Memory Type FLASH
Core Size 8-Bit
Program Memory Size 64KB 32K x 16
Connectivity I2C, SPI, UART/USART
Supply Current-Max 9 mA
Bit Size 8
Data Converter A/D 8x10b
Watchdog Timer Yes
Has ADC YES
DMA Channels NO
Data Bus Width 8b
PWM Channels YES
DAC Channels NO
Seated Height-Max 1 mm
Number of Timers/Counters 3 Timer
Product Type 8-bit Microcontrollers - MCU
ROM (words) 32768
Core Architecture AVR
EEPROM Size 2K x 8
On Chip Program ROM Width 16
CPU Family AVR RISC
Max Frequency 20 MHz
Boundary Scan YES
Low Power Mode YES
Number of Programmable I/O 32
Format FIXED-POINT
Integrated Cache NO
RAM (words) 4096
Number of UART Channels 2
RAM (bytes) 4096
Number of ADC Channels 8
Number of Serial I/Os 2
Number of Timers 3
ROM Programmability FLASH
Number of External Interrupts 3
Number of PWM Channels 6
Number of I2C Channels 1
On Chip Data RAM Width 8
Number of SPI Channels 3
Product MCU
Product Category 8-bit Microcontrollers - MCU
Device Core AVR
Height 950μm
Length 7.1mm
Width 7.1mm
REACH SVHC No SVHC
Radiation Hardening No
RoHS Status ROHS3 Compliant
Lead Free Lead Free
Pricing & Ordering
Quantity Unit Price Ext. Price
1 $5.95000 $5.95
500 $5.8905 $2945.25
1000 $5.831 $5831
1500 $5.7715 $8657.25
2000 $5.712 $11424
2500 $5.6525 $14131.25
ATMEGA644A-MU Product Details

ATMEGA644A-MU Overview


There is a 44-VFQFN Exposed Pad package available. The board has 32 I/Os. Using the Mounting Type Surface Mount, the MCU is mounted on PCB. A 8-Bit core is used in order to power the IC chip. The type of memory it uses for its program is FLASH. -40°C~85°C TA is the temperature range at which this Microcontroller operates. AVR® ATmega-series components are electrical components. In the case of this Microcontroller, the memory size of the program is 64KB 32K x 16. Powered by a AVR Core processor. Microcontroller's a MICROCONTROLLER, RISC uPs/uCs/Peripheral IC. IC Chip terminations are 44. As a result, this Microcontroller comes with a 8-bit size. A total of NO DMA channels are available. This IC part has a memory size of 64kB. There are a number of alternatives to the base part number ATMEGA644A that you can find. Performing well when operated at frequency 20MHz can be achieved. Using YES PWM channels, the device works. On the chip, there are 44 pins that can be accessed. It comes with 3 Timer timers/counters that can be set up. The pins counted are 44. The device is powered by the the AVR RISC CPU family that is embedded in it. FLASH memory is one of the features of this equipment. The CPU is based on AVR cores. There are 32 Programmable I/Os on this computer. In addition, it has 8 UART channels to choose from. The device has a total of 8 ADC channels in total. There are 6 PWM channels used by the device in total. A total of 1 I2C channels have been integrated into the part. It contains 2 serial input/output interfaces on the board. The part contains 3 interrupts external to the system. The total number of bits on a MCU chip is 3.

ATMEGA644A-MU Features


44-VFQFN Exposed Pad package
Mounting type of Surface Mount
Minimum temperature of -40 °C


ATMEGA644A-MU Applications


There are a lot of Microchip Technology
ATMEGA644A-MU Microcontroller applications.


  • Toys
  • Robots
  • Radio
  • Television
  • Heater/Fan
  • Calculator
  • Kindle
  • Christmas lights
  • 3D printers
  • Washing machine

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