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ATMEGA644P-20PQ

ATMEGA644P-20PQ

ATMEGA644P-20PQ

Microchip Technology

64KB 32K x 16 FLASH AVR 8-Bit Microcontroller AVR® ATmega Series ATMEGA644P 40 Pin 20MHz 5V 44-TQFP

SOT-23

ATMEGA644P-20PQ Datasheet PDF

non-compliant

Technical Specifications

Parameter NameValue
TypeParameter
Factory Lead Time 4 Weeks
Contact PlatingTin
Mount Through Hole
Mounting Type Surface Mount
Package / Case 44-TQFP
Surface MountNO
Number of Pins 40
Supplier Device Package 40-PDIP
Number of Terminals 40
Mounting Style Through Hole
Interfaces SPI/USART
Data Converters A/D 8x10b
Number of I/Os 32 I/O
Maximum Operating Temperature+ 85 C
Minimum Operating Temperature - 40 C
Interface Type 2-Wire, JTAG, SPI, USART
Manufacturer Microchip
Brand Microchip Technology / Atmel
Tradename AVR
RoHS Details
Package Tube
Base Product Number ATMEGA644
Mfr Microchip Technology
Product Status Active
Package Shape RECTANGULAR
Number of I/O Lines 32
Operating Temperature-40°C~105°C TA
PackagingTube
Series AVR® ATmega
Published 1997
Pbfree Code yes
Part StatusActive
Moisture Sensitivity Level (MSL) 3 (168 Hours)
Number of Terminations 40
Additional FeatureOPERATES AT 2.7 V MIN @ 10 MHZ
Subcategory Microcontrollers - MCU
Terminal Position DUAL
Terminal FormTHROUGH-HOLE
Supply Voltage 5V
Terminal Pitch2.54mm
Reach Compliance Code compliant
Frequency 20MHz
Base Part Number ATMEGA644P
JESD-30 Code R-PDIP-T40
Supply Voltage-Max (Vsup) 5.5V
Supply Voltage-Min (Vsup) 4.5V
Interface 2-Wire, I2C, SPI, UART, USART
Memory Size64kB
Oscillator TypeInternal
Number of I/O 32
Speed 20MHz
RAM Size 4K x 8
Voltage - Supply (Vcc/Vdd) 2.7V~5.5V
uPs/uCs/Peripheral ICs Type MICROCONTROLLER, RISC
Core Processor AVR
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Program Memory TypeFLASH
Core Size 8-Bit
Program Memory Size 64KB 32K x 16
Connectivity I2C, SPI, UART/USART
Bit Size 8
Data Converter A/D 8x10b
Has ADC YES
DMA Channels NO
Data Bus Width 8b
PWM Channels YES
DAC Channels NO
Seated Height-Max 4.826 mm
Number of Timers/Counters 3
Product Type8-bit Microcontrollers - MCU
EEPROM Size 2K x 8
On Chip Program ROM Width 16
Screening Level TS 16949
ROM Programmability FLASH
Product MCU
Product Category8-bit Microcontrollers - MCU
Device CoreAVR
Height Seated (Max) 4.826mm
Width 15.88 mm
Height 4.83 mm
Length 52.58 mm
RoHS StatusROHS3 Compliant
In-Stock:944 items

Pricing & Ordering

QuantityUnit PriceExt. Price
150$4.71740$707.61

ATMEGA644P-20PQ Product Details

ATMEGA644P-20PQ Overview


Packaged in a 44-TQFP format, this MCU is available in a compact size. There are 32 I/Os on the Microcontroller. It is important to note that the Microcontroller has a Surface Mount mounting type. 8-Bit core is the basis for this Microcontroller. This program has a type of memory called FLASH for this MCU's program memory. Temperatures in this range are operated by this Microcontroller. The AVR® ATmega series includes this electrical component. There is 64KB 32K x 16 bytes of program memory in MCU, which corresponds to the size of the program. With a AVR Core processor, MCU is equipped with the latest technology available. This is a MICROCONTROLLER, RISC uPs/uCs/Peripheral IC. During the manufacturing process, 40 terminations were applied to the IC chip. 8-bits are used in Microcontroller. The MCU chip's supply output is 5V volts. Currently, MCU chip has NO DMA channels. 64kB memory size belongs to the Chip part. Alternatives can be found by looking at the base part number ATMEGA644P. In the case of 20MHz frequency operation, it can perform efficiently. There are YES PWM channels on the device. The chip has 40 pins. The clock has 3 timers/counters to keep track of the time. As a few examples, there are additional features like OPERATES AT 2.7 V MIN @ 10 MHZ that are available in the software.

ATMEGA644P-20PQ Features


44-TQFP package
Mounting type of Surface Mount
Microcontrollers - MCU subcategory


ATMEGA644P-20PQ Applications


There are a lot of Microchip Technology
ATMEGA644P-20PQ Microcontroller applications.


  • Equipment control
  • Instrument control
  • Toys
  • Robots
  • Radio
  • Television
  • Heater/Fan
  • Calculator
  • Kindle
  • Christmas lights

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