ATMEGA644-20MUR
- Mfr.Part #
- ATMEGA644-20MUR
- Manufacturer
- Microchip Technology
- Package / Case
- 44-VFQFN Exposed Pad
- Datasheet
- Download
- Description
- IC MCU 8BIT 64KB FLASH 44VQFN
- Stock
- 5,347
- In Stock :
- 5,347
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- Manufacturer :
- Microchip Technology
- Product Category :
- Microcontrollers
- Number of Pins :
- 44
- Supply Voltage-Max (Vsup) :
- 5.5V
- Connectivity :
- I2C, SPI, UART/USART
- Voltage - Supply (Vcc/Vdd) :
- 2.7V~5.5V
- Tradename :
- AVR
- EEPROM Size :
- 2K x 8
- Number of I/Os :
- 32
- Length :
- 7mm
- Terminal Form :
- NO LEAD
- Series :
- AVR® ATmega
- ROM (words) :
- 32768
- Maximum Operating Temperature :
- + 85 C
- Width :
- 7 mm
- Device Core :
- AVR
- DAC Channels :
- No
- Supply Voltage-Min (Vsup) :
- 4.5V
- Supply Current-Max :
- 9 mA
- Supply Voltage :
- 5V
- Supplier Device Package :
- 44-VQFN (7x7)
- Core Architecture :
- AVR
- Additional Feature :
- ALSO OPERATES AT 2.7V SUPPLY AT 10 MHZ
- Core Size :
- 8-Bit
- Package :
- Tape and Reel (TR);Cut Tape (CT);Digi-Reel®;
- Terminal Pitch :
- 0.5mm
- Base Product Number :
- ATMEGA644
- Operating Temperature :
- -40°C~85°C TA
- DMA Channels :
- No
- RAM Size :
- 4K x 8
- Temperature Grade :
- Industrial
- Pbfree Code :
- yes
- Has ADC :
- yes
- Bit Size :
- 8
- RoHS Status :
- ROHS3 Compliant
- Peripherals :
- Brown-out Detect/Reset, POR, PWM, WDT
- Mounting Style :
- SMD/SMT
- CPU Family :
- AVR RISC
- Terminal Finish :
- Matte Tin (Sn)
- Data Bus Width :
- 8B
- PWM Channels :
- yes
- Base Part Number :
- ATMEGA644
- Oscillator Type :
- Internal
- Product Status :
- Active
- Lifecycle Status :
- Production (Last Updated: 2 years ago)
- Moisture Sensitivity Level (MSL) :
- 3 (168 Hours)
- Mount :
- Surface Mount
- Memory Type :
- Flash
- Published :
- 1997
- uPs/uCs/Peripheral ICs Type :
- MICROCONTROLLER, RISC
- Packaging :
- Tape and Reel (TR)
- Number of Terminations :
- 44
- Manufacturer :
- Microchip
- Qualification Status :
- Not Qualified
- Factory Lead Time :
- 7 Weeks
- RAM (bytes) :
- 4096
- Data Converter :
- A/D 8x10b
- Watchdog Timer :
- yes
- Contact Plating :
- Tin
- Interfaces :
- SPI/USART
- RoHS :
- Compliant
- Product Category :
- 8-bit Microcontrollers - MCU
- Brand :
- Microchip Technology / Atmel
- Number of I/O :
- 32
- Package Shape :
- Square
- Package / Case :
- 44-VFQFN Exposed Pad
- Frequency :
- 20MHz
- Product :
- MCU
- Height Seated (Max) :
- 1mm
- Number of I/O Lines :
- 32
- ROM Programmability :
- Flash
- Number of Programmable I/O :
- 32
- Max Frequency :
- 20 MHz
- JESD-30 Code :
- S-XQCC-N44
- Memory Size :
- 64KB
- Program Memory Type :
- Flash
- Max Supply Voltage :
- 5.5 V
- Core Processor :
- AVR
- Power Supplies :
- 3/5 V
- Minimum Operating Temperature :
- - 40 C
- Data Converters :
- A/D 8x10b
- Surface Mount :
- yes
- Number of Timers/Counters :
- 3
- Peak Reflow Temperature (Cel) :
- 260
- Time@Peak Reflow Temperature-Max (s) :
- 40
- Mounting Type :
- Surface Mount
- Program Memory Size :
- 64KB 32K x 16
- Reach Compliance Code :
- Compliant
- JESD-609 Code :
- e3
- Min Operating Temperature :
- -40 °C
- Max Operating Temperature :
- 85 °C
- Speed :
- 20MHz
- Seated Height-Max :
- 1 mm
- Interface :
- I2C, SPI, UART, USART
- Min Supply Voltage :
- 2.7 V
- Terminal Position :
- QUAD
- Number of Terminals :
- 44
- Product Type :
- 8-bit Microcontrollers - MCU
- Datasheets
- ATMEGA644-20MUR
ATMEGA644-20MUR Documents

Microcontrollers Microchip Technology ATMEGA644-20MUR Overview
The Microcontrollers Microchip Technology ATMEGA644-20MUR is a highly versatile 8-bit microcontroller from Microchip Technology, designed to cater to a wide array of applications, from consumer electronics to industrial control systems. This MCU features 64KB of in-system programmable flash and operates at a frequency of up to 20MHz. Encapsulated in a compact 44-VQFN package, it combines advanced RISC architecture with rich peripheral integration, making it an ideal choice for projects demanding high levels of control and processing power in a small form factor. Its robust design and extensive features set enable enhanced system efficiency and reliability, making it a go-to choice for developers and engineers aiming for optimized product performance.
ATMEGA644-20MUR Features
- 8-bit AVR Microcontroller
- 64KB ISP flash memory
- 20 MHz maximum clock frequency
- 44-VQFN package
- Two 8-bit timer/counters and one 16-bit timer/counter
- Six PWM channels
- 32 general purpose I/O lines
- 1.8V to 5.5V operating voltage range
- Advanced RISC architecture
ATMEGA644-20MUR Applications
- Smart Home Devices: Utilizes its GPIO capabilities for interfacing with sensors and actuators, providing intelligence and automation to home applications.
- Industrial Automation: Supports robust control systems with its ample GPIOs and PWM channels, suitable for managing automated processes in factories.
- Automotive Applications: Employs its robust timer/counter features to manage automotive control systems, improving vehicle performance and functionality.
- Utility Metering: Leverages its accurate timing and processing capabilities to enhance reliability and efficiency in smart metering solutions.
- Consumer Electronics: Drives user interfaces and other critical functions in devices such as handheld gadgets, due to its compact size and processing power.
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