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

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.
You may place an order without registering to Chip IC. We strongly recommend that you log in before purchasing as you can track your order at any time.
RFQ (Request for Quotations)It is recommended to send RFQ to get the latest prices and stock availability about the part.Our sales will reply to your inquiry within 24 hours.
Payment MethodFor your convenience, we accept multiple payment methods in USD, Such as:PayPal, Credit Card, and wire transfer.
IMPORTANT NOTICEYou may place an order without registering to 1. You'll receive an order confirmations by e-mail soon . (Please remember to check the spam box if you didn't hear from us). 2. Since stock availability and prices may change at any time, the sales will reconfirm the order details and update you at soonest time.
Most of our products are shipped via FEDEX,DHL,UPS and SF EXPRESS...
Shipping CostShipping Cost starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.).If customer have shipping account, we can make shipment under customer’s shipping account with freight collect directly.
The basic freight (for package ≤0.5 KG ) depends on the time zones and countries
Once the goods are shipped, estimated delivery time depends on the shipping methods you chose. You can track it by the tracking no.
















