Datasheets
ATMEGA644P-20MU by:
Microchip Technology Inc
Atmel Corporation
Microchip Technology Inc
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IC MCU 8BIT 64KB FLASH 44VQFN

Part Details for ATMEGA644P-20MU by Microchip Technology Inc

Results Overview of ATMEGA644P-20MU by Microchip Technology Inc

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

ATMEGA644P-20MU Information

ATMEGA644P-20MU 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.

Price & Stock for ATMEGA644P-20MU

Part # Distributor Description Stock Price Buy
DISTI # 26R5636
Newark Mcu, 8Bit, Atmega, 20Mhz, Qfn-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:Qfn, No. Of I/O S:32I/O S, Rohs Compliant: Yes |Microchip ATMEGA644P-20MU more RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 1 Container: Bulk 1981
  • 1 $6.6100
  • 10 $6.6000
  • 25 $6.0000
  • 50 $5.8400
$5.8400 / $6.6100 Buy Now
DISTI # ATMEGA644P-20MU-ND
DigiKey IC MCU 8BIT 64KB FLASH 44VQFN Min Qty: 1 Lead time: 4 Weeks Container: Tray 1925
In Stock
  • 1 $7.0500
  • 25 $6.4600
  • 100 $5.8400
$5.8400 / $7.0500 Buy Now
DISTI # ATMEGA644P-20MU
Avnet Americas 8 Bit MCU, Low Power High Performance, AVR ATmega Family ATmega644 Series Microcontrollers, AVR - Tr... ays (Alt: ATMEGA644P-20MU) more RoHS: Compliant Min Qty: 360 Package Multiple: 360 Lead time: 4 Weeks, 0 Days Container: Tray 0
  • 360 $6.0806
  • 720 $6.0305
  • 1,440 $5.9806
  • 2,160 $5.9307
  • 2,880 $5.8810
$5.8810 / $6.0806 Buy Now
DISTI # 556-ATMEGA644P-20MU
Mouser Electronics 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V RoHS: Compliant 1551
  • 1 $7.0500
  • 25 $6.4600
  • 100 $5.8400
$5.8400 / $7.0500 Buy Now
DISTI # ATMEGA644P-20MU
Microchip Technology Inc 20MHZ, QFN/MLF, IND TEMP, GREEN, 5V, VQFN, Projected EOL: 2039-11-01 COO: Taiwan, Thailand ECCN: EAR99 RoHS: Compliant Lead time: 8 Weeks, 0 Days Container: Tray 19712

Alternates Available
  • 1 $7.0500
  • 25 $6.4600
  • 100 $5.8400
  • 1,000 $5.3800
  • 5,000 $5.1000
$5.1000 / $7.0500 Buy Now
Onlinecomponents.com MCU - 8-bit AVR RISC - 64KB Flash - 3.3V/5V - 44-Pin VQFN EP - Tray RoHS: Compliant 720 In Stock
21960 Factory Stock
  • 5 $12.1900
  • 25 $12.0100
  • 50 $11.8300
  • 90 $11.6500
  • 180 $7.1700
  • 270 $5.6700
  • 360 $5.5600
$5.5600 / $12.1900 Buy Now
DISTI # 71320537
Verical MCU 8-bit AVR RISC 64KB Flash 3.3V/5V 44-Pin VQFN EP Tray RoHS: Compliant Min Qty: 5 Package Multiple: 5 Date Code: 2325 Americas - 720
  • 5 $15.8470
  • 25 $15.6130
  • 50 $15.3790
  • 90 $15.1450
  • 180 $9.3210
$9.3210 / $15.8470 Buy Now
DISTI # 71294557
Verical MCU 8-bit AVR RISC 64KB Flash 3.3V/5V 44-Pin VQFN EP Tray RoHS: Compliant Min Qty: 220 Package Multiple: 220 Date Code: 2331 Americas - 220
  • 220 $13.3749
$13.3749 Buy Now
DISTI # ATMEGA644P-20MU
TME IC: AVR microcontroller, VQFN44, 1.8÷5.5VDC, Ext.inter: 32, Cmp: 1 Min Qty: 1 0
  • 1 $7.7000
  • 5 $7.0800
  • 25 $6.6100
  • 100 $6.3200
$6.3200 / $7.7000 RFQ
NAC 20MHZ, QFN/MLF, IND TEMP, GREEN, 5V - Package: 44 VQFN 7x7x1mm TRAY RoHS: Compliant Min Qty: 360 Package Multiple: 360 Container: Tray 0
  • 1 $7.3200
  • 100 $6.6400
  • 500 $6.2300
  • 1,000 $6.0700
$6.0700 / $7.3200 Buy Now
DISTI # ATMEGA644P-20MU
Avnet Silica 8 Bit MCU Low Power High Performance AVR ATmega Family ATmega644 Series Microcontrollers AVR (Alt: A... TMEGA644P-20MU) more RoHS: Compliant Min Qty: 360 Package Multiple: 360 Lead time: 6 Weeks, 0 Days Silica - 0
Buy Now
DISTI # ATMEGA644P-20MU
EBV Elektronik 8 Bit MCU Low Power High Performance AVR ATmega Family ATmega644 Series Microcontrollers AVR (Alt: A... TMEGA644P-20MU) more RoHS: Compliant Min Qty: 360 Package Multiple: 360 Lead time: 5 Weeks, 0 Days EBV - 0
Buy Now
Master Electronics MCU - 8-bit AVR RISC - 64KB Flash - 3.3V/5V - 44-Pin VQFN EP - Tray RoHS: Compliant 720 In Stock
21960 Factory Stock
  • 5 $12.1900
  • 25 $12.0100
  • 50 $11.8300
  • 90 $11.6500
  • 180 $7.1700
  • 270 $5.6700
  • 360 $5.5600
$5.5600 / $12.1900 Buy Now

Part Details for ATMEGA644P-20MU

ATMEGA644P-20MU CAD Models

ATMEGA644P-20MU Part Data Attributes

ATMEGA644P-20MU Microchip Technology Inc
Buy Now Datasheet
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ATMEGA644P-20MU Microchip Technology Inc IC MCU 8BIT 64KB FLASH 44VQFN
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Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Not Recommended
Ihs Manufacturer MICROCHIP TECHNOLOGY INC
Package Description 7 X 7 MM, 1.00 MM HEIGHT, 0.50 MM PITCH, GREEN, VQFN-44
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.31.00.01
Factory Lead Time 4 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 85 °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
Qualification Status Not Qualified
RAM (bytes) 4096
ROM (words) 65536
ROM Programmability FLASH
Screening Level TS 16949
Seated Height-Max 1 mm
Speed 20 MHz
Supply Current-Max 9 mA
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-20MU

This table gives cross-reference parts and alternative options found for ATMEGA644P-20MU. 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-20MU, 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-20MUR Microchip Technology Inc Check for Price IC MCU 8BIT 64KB FLASH 44VQFN ATMEGA644P-20MU vs ATMEGA644P-20MUR
ATMEGA644P-20MQR Microchip Technology Inc Check for Price IC MCU 8BIT 64KB FLASH 44VQFN ATMEGA644P-20MU vs ATMEGA644P-20MQR
ATMEGA644P-20MQ Microchip Technology Inc Check for Price IC MCU 8BIT 64KB FLASH 44VQFN ATMEGA644P-20MU vs ATMEGA644P-20MQ
ATMEGA644P-20MNR Microchip Technology Inc Check for Price RISC Microcontroller ATMEGA644P-20MU vs ATMEGA644P-20MNR
Part Number Manufacturer Composite Price Description Compare
ATMEGA644P-20MUR Atmel Corporation Check for Price RISC Microcontroller, 8-Bit, FLASH, AVR RISC CPU, 20MHz, CMOS, PQCC44, 7 X 7 MM, 1 MM HEIGHT, 0.50 MM PITCH, GREEN, PLASTIC, MO-220VKKD-1, VQFN-44 ATMEGA644P-20MU vs ATMEGA644P-20MUR
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-20MU vs ATMEGA644P-20MU
ATMEGA644P-20MN Microchip Technology Inc Check for Price RISC Microcontroller ATMEGA644P-20MU vs ATMEGA644P-20MN
ATMEGA644P-20AU Atmel Corporation Check for Price RISC Microcontroller, 8-Bit, FLASH, AVR RISC CPU, 20MHz, CMOS, PQFP44, 10 X 10 MM, 1 MM HEIGHT, 0.80 MM PITCH, GREEN, PLASTIC, MS-026ACB, TQFP-44 ATMEGA644P-20MU vs ATMEGA644P-20AU
ATMEGA644P-20PN Microchip Technology Inc Check for Price RISC Microcontroller ATMEGA644P-20MU vs ATMEGA644P-20PN
ATMEGA644P-20PU Atmel Corporation Check for Price RISC Microcontroller, 8-Bit, FLASH, AVR RISC CPU, 20MHz, CMOS, PDIP40, 0.600 INCH, GREEN, PLASTIC, MS-011AC, DIP-40 ATMEGA644P-20MU vs ATMEGA644P-20PU
ATMEGA644P-20AUR Atmel Corporation Check for Price RISC Microcontroller, 8-Bit, FLASH, AVR RISC CPU, 20MHz, CMOS, PQFP44, 10 X 10 MM, 1 MM HEIGHT, 0.80 MM PITCH, GREEN, PLASTIC, MS-026ACB, TQFP-44 ATMEGA644P-20MU vs ATMEGA644P-20AUR

ATMEGA644P-20MU Related Parts

ATMEGA644P-20MU Frequently Asked Questions (FAQ)

  • The maximum clock frequency for the ATMEGA644P-20MU is 20 MHz.

  • The ATMEGA644P-20MU has 64 KB of flash memory.

  • Yes, the ATMEGA644P-20MU can operate at 3.3V, but it is recommended to use a voltage regulator to ensure stable operation.

  • The maximum current consumption of the ATMEGA644P-20MU is approximately 15 mA at 20 MHz and 5V.

  • No, the ATMEGA644P-20MU does not have built-in USB support. However, it can be implemented using external USB controllers or bit-banging techniques.