Datasheets
ATMEGA644P-20MQ by: Microchip Technology Inc

IC MCU 8BIT 64KB FLASH 44VQFN

Part Details for ATMEGA644P-20MQ by Microchip Technology Inc

Results Overview of ATMEGA644P-20MQ by Microchip Technology Inc

Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.

Applications Consumer Electronics Internet of Things (IoT) Industrial Automation Smart Cities

ATMEGA644P-20MQ Information

ATMEGA644P-20MQ by Microchip Technology Inc is a Microcontroller.
Microcontrollers are under the broader part category of Microcontrollers and Processors.

Microcontrollers (MCUs) are small, low-power integrated circuits used to control embedded systems. Microcontrollers are primarily used to automate and control devices. Read more about Microcontrollers and Processors on our Microcontrollers and Processors part category page.

Available Datasheets

Part # Manufacturer Description Datasheet
TPS6285020MQDRLRQ1 Texas Instruments 2.7-V to 6-V, 2-A automotive step-down converter in SOT583 package 8-SOT-5X3 -40 to 125
TPS628120MQWRWYRQ1 Texas Instruments Automotive 2.75-V to 6-V, 2-A step-down converter in a 2mm x 3mm wettable-flanks QFN package 9-VQFN-HR -40 to 125

Price & Stock for ATMEGA644P-20MQ

Part # Distributor Description Stock Price Buy
DISTI # 68T3112
Newark Microcontroller Mcu, 8 Bit, Atmega, 20Mhz, Qfn-44, Product Range:Avr Atmega Family Atmega644 Series... Microcontrollers, Device Core:Avr, Operating Frequency Max:20Mhz, Program Memory Size:64Kb, No. Of Pins:44Pins, Ic Case/Package:Qfnrohs Compliant: Yes |Microchip ATMEGA644P-20MQ more RoHS: Compliant Min Qty: 360 Package Multiple: 1 Date Code: 0 Container: Bulk 0
  • 100 $6.1600
$6.1600 Buy Now
DISTI # ATMEGA644P-20MQ-ND
DigiKey IC MCU 8BIT 64KB FLASH 44VQFN Min Qty: 360 Lead time: 8 Weeks Container: Tray Temporarily Out of Stock
  • 360 $5.9800
$5.9800 Buy Now
DISTI # ATMEGA644P-20MQ
Avnet Americas MCU 8-bit ATmega AVR RISC 64KB Flash 3.3V/5V 44-Pin VQFN EP - Trays (Alt: ATMEGA644P-20MQ) RoHS: Compliant Min Qty: 360 Package Multiple: 360 Lead time: 8 Weeks, 0 Days Container: Tray 0
  • 360 $6.1905
  • 720 $6.1395
  • 1,440 $6.0886
  • 2,160 $6.0379
  • 2,880 $5.9873
$5.9873 / $6.1905 Buy Now
DISTI # 556-ATMEGA644P-20MQ
Mouser Electronics 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V RoHS: Compliant 0
  • 360 $5.9800
$5.9800 Order Now
DISTI # ATMEGA644P-20MQ
Microchip Technology Inc 20MHZ, MLF/QFN, Ext Temp, Green, 5V, VQFN, Projected EOL: 2044-12-22 COO: Taiwan, Thailand ECCN: EAR99 RoHS: Compliant Lead time: 8 Weeks, 0 Days Container: Tray 0

Alternates Available
  • 1 $7.1900
  • 25 $6.6000
  • 100 $5.9800
  • 1,000 $5.5100
  • 5,000 $5.2200
$5.2200 / $7.1900 Buy Now
Onlinecomponents.com   RoHS: Compliant 0
  • 90 $11.8800
  • 180 $7.3100
  • 270 $5.7900
  • 360 $5.6700
$5.6700 / $11.8800 Buy Now
NAC 20MHZ, MLF/QFN, Ext Temp, Green, 5V - Package: 44 VQFN 7x7x1mm TRAY RoHS: Compliant Min Qty: 360 Package Multiple: 360 Container: Tray 0
  • 1 $7.4600
  • 100 $6.7600
  • 500 $6.3400
  • 1,000 $6.1800
$6.1800 / $7.4600 Buy Now
DISTI # ATMEGA644P-20MQ
EBV Elektronik MCU 8bit ATmega AVR RISC 64KB Flash 33V5V 44Pin VQFN EP (Alt: ATMEGA644P-20MQ) RoHS: Compliant Min Qty: 360 Package Multiple: 360 Lead time: 9 Weeks, 0 Days EBV - 0
Buy Now
Master Electronics   RoHS: Compliant 0
  • 90 $11.8800
  • 180 $7.3100
  • 270 $5.7900
  • 360 $5.6700
$5.6700 / $11.8800 Buy Now

Part Details for ATMEGA644P-20MQ

ATMEGA644P-20MQ CAD Models

There are no models available for this part yet.

Sign in to request this CAD model.

Register or Sign In

ATMEGA644P-20MQ Part Data Attributes

ATMEGA644P-20MQ Microchip Technology Inc
Buy Now Datasheet
Compare Parts:
ATMEGA644P-20MQ Microchip Technology Inc IC MCU 8BIT 64KB FLASH 44VQFN
Select a part to compare:
Pbfree Code Yes
Part Life Cycle Code Not Recommended
Ihs Manufacturer MICROCHIP TECHNOLOGY INC
Package Description VQFN-44
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.31.00.01
Factory Lead Time 8 Weeks
Samacsys Manufacturer Microchip
Has ADC YES
Additional Feature OPERATES AT 2.7V MINIMUM SUPPLY AT 10 MHz
Address Bus Width
Bit Size 8
Boundary Scan YES
CPU Family AVR RISC
Clock Frequency-Max 20 MHz
DAC Channels YES
DMA Channels NO
External Data Bus Width
Format FIXED POINT
Integrated Cache NO
JESD-30 Code S-PQCC-N44
Length 7 mm
Low Power Mode YES
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 105 °C
Operating Temperature-Min -40 °C
PWM Channels YES
Package Body Material PLASTIC/EPOXY
Package Code HVQCCN
Package Equivalence Code LCC44,.28SQ,20
Package Shape SQUARE
Package Style CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
RAM (bytes) 4096
ROM (words) 65536
ROM Programmability FLASH
Screening Level TS 16949
Seated Height-Max 1 mm
Speed 20 MHz
Supply Voltage-Max 5.5 V
Supply Voltage-Min 4.5 V
Supply Voltage-Nom 5 V
Surface Mount YES
Technology CMOS
Temperature Grade INDUSTRIAL
Terminal Form NO LEAD
Terminal Pitch 0.5 mm
Terminal Position QUAD
Width 7 mm
uPs/uCs/Peripheral ICs Type MICROCONTROLLER, RISC

Alternate Parts for ATMEGA644P-20MQ

This table gives cross-reference parts and alternative options found for ATMEGA644P-20MQ. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of ATMEGA644P-20MQ, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
ATMEGA644P-20MNR Microchip Technology Inc Check for Price RISC Microcontroller ATMEGA644P-20MQ vs ATMEGA644P-20MNR
ATMEGA644P-20MQR Microchip Technology Inc Check for Price IC MCU 8BIT 64KB FLASH 44VQFN ATMEGA644P-20MQ vs ATMEGA644P-20MQR
ATMEGA644P-20MU Microchip Technology Inc $5.6118 IC MCU 8BIT 64KB FLASH 44VQFN ATMEGA644P-20MQ vs ATMEGA644P-20MU
ATMEGA644P-20MUR Microchip Technology Inc Check for Price IC MCU 8BIT 64KB FLASH 44VQFN ATMEGA644P-20MQ vs ATMEGA644P-20MUR
ATMEGA644P-20MU-SL383 Atmel Corporation Check for Price Microcontroller, 8-Bit, FLASH, AVR RISC CPU, 20MHz, CMOS, PQCC44 ATMEGA644P-20MQ vs ATMEGA644P-20MU-SL383
Part Number Manufacturer Composite Price Description Compare
ATMEGA644P-20AN Microchip Technology Inc Check for Price RISC Microcontroller ATMEGA644P-20MQ vs ATMEGA644P-20AN
ATMEGA644P-20PN Microchip Technology Inc Check for Price RISC Microcontroller ATMEGA644P-20MQ vs ATMEGA644P-20PN
ATMEGA644P-20MU Atmel Corporation Check for Price RISC Microcontroller, 8-Bit, FLASH, AVR RISC CPU, 20MHz, CMOS, 7 X 7 MM, 1.00 MM HEIGHT, 0.50 MM PITCH, GREEN, VQFN-44 ATMEGA644P-20MQ vs ATMEGA644P-20MU

ATMEGA644P-20MQ Frequently Asked Questions (FAQ)

  • The ATMEGA644P-20MQ can operate at a maximum clock frequency of 20 MHz, as indicated by the '-20' in the part number.

  • The power consumption of the ATMEGA644P-20MQ in sleep mode depends on the specific sleep mode used. According to the datasheet, the power consumption in power-down sleep mode is typically around 0.1 μA, while in power-save sleep mode it is around 1.5 μA.

  • The ATMEGA644P-20MQ is rated for operation in temperatures ranging from -40°C to +85°C, making it suitable for use in a wide range of environments. However, it is not specifically designed for use in extremely harsh environments, such as those with high levels of radiation or extreme humidity.

  • The ATMEGA644P-20MQ can be programmed using a variety of methods, including in-system programming (ISP) using a programmer such as the AVRISP or AVRISP2, or using a bootloader. The device can also be programmed using a programming language such as C or assembly language, and a development environment such as Atmel Studio or Arduino.

  • The ATMEGA644P-20MQ has 64 KB of flash memory, 4 KB of SRAM, and 2 KB of EEPROM. It is not possible to add additional memory to the device, as it is a fixed-capacity microcontroller.