ATMEGA644-20MU
- Mfr.Part #
- ATMEGA644-20MU
- Manufacturer
- Microchip Technology
- Package / Case
- 44-VFQFN Exposed Pad
- Datasheet
- Download
- Description
- IC MCU 8BIT 64KB FLASH 44VQFN
- Stock
- 9,562
- In Stock :
- 9,562
Request A Quote(RFQ)
- * Fullname:
- * Company:
- * E-Mail:
- Phone:
- Comment:
- * Quantity:
- Manufacturer :
- Microchip Technology
- Product Category :
- Microcontrollers
- Mounting Style :
- SMD/SMT
- Operating Temperature :
- -40°C~85°C TA
- Has ADC :
- yes
- Contact Plating :
- Tin
- Interface :
- 2-Wire, I2C, SPI, UART, USART
- Max Supply Voltage :
- 5.5 V
- Number of Pins :
- 44
- ROM (words) :
- 32768
- MSL :
- MSL 3 - 168 hours
- Core Size :
- 8-Bit
- Terminal Finish :
- Matte Tin (Sn)
- Radiation Hardening :
- No
- Package :
- Tray
- Additional Feature :
- ALSO OPERATES AT 2.7V SUPPLY AT 10 MHZ
- Number of ADC Channels :
- 8 Channel
- Supplier Device Package :
- 44-VQFN (7x7)
- Qualification :
- -
- Bit Size :
- 8
- Schedule B :
- 8542310000, 8542310000/8542310000/8542310000/8542310000/8542310000
- Max Operating Temperature :
- 85 °C
- Tradename :
- AVR
- PWM Channels :
- yes
- Base Part Number :
- ATMEGA644
- Base Product Number :
- ATMEGA644
- Access Time :
- 20 μs
- Package / Case :
- 44-VFQFN Exposed Pad
- EEPROM Size :
- 2K x 8
- uPs/uCs/Peripheral ICs Type :
- MICROCONTROLLER, RISC
- Max Frequency :
- 20 MHz
- Number of I/O Lines :
- 32
- DAC Channels :
- No
- Supply Voltage-Min (Vsup) :
- 4.5V
- Brand :
- Microchip Technology
- Product Type :
- 8-bit Microcontrollers - MCU
- Peak Reflow Temperature (Cel) :
- 260
- Device Core :
- AVR
- REACH SVHC :
- No SVHC
- Product Status :
- Active
- Program Memory Size :
- 64KB 32K x 16
- Time@Peak Reflow Temperature-Max (s) :
- 40
- Voltage - Supply (Vcc/Vdd) :
- 2.7V~5.5V
- Min Supply Voltage :
- 2.7 V
- Number of Programmable I/O :
- 32
- Maximum Operating Temperature :
- + 85 C
- Interface Type :
- I2C, SPI, USART
- Data Bus Width :
- 8B
- RAM Size :
- 4K x 8
- Lead Free :
- Lead Free
- Terminal Pitch :
- 0.5mm
- Number of Terminations :
- 44
- Terminal Position :
- QUAD
- Min Operating Temperature :
- -40 °C
- Factory Lead Time :
- 7 Weeks
- Lifecycle Status :
- Production (Last Updated: 2 years ago)
- Temperature Grade :
- Industrial
- Product :
- MCU
- Packaging :
- Tray
- Speed :
- 20MHz
- Interfaces :
- SPI/USART
- Pbfree Code :
- yes
- Reach Compliance Code :
- Compliant
- Manufacturer :
- Microchip
- RoHS :
- Compliant
- Minimum Operating Temperature :
- - 40 C
- Seated Height-Max :
- 1 mm
- Width :
- 7 mm
- Number of I/O :
- 32
- ROM Programmability :
- Flash
- RAM (bytes) :
- 4096
- Number of Terminals :
- 44
- Memory Size :
- 64KB
- Number of Timers/Counters :
- 3
- JESD-30 Code :
- S-XQCC-N44
- Length :
- 7mm
- Product Category :
- 8-bit Microcontrollers - MCU
- Published :
- 1997
- Qualification Status :
- Not Qualified
- Terminal Form :
- NO LEAD
- Power Supplies :
- 3/5 V
- Mount :
- Surface Mount
- Peripherals :
- Brown-out Detect/Reset, POR, PWM, WDT
- Data Converter :
- A/D 8x10b
- Surface Mount :
- yes
- DMA Channels :
- No
- Connectivity :
- I2C, SPI, UART/USART
- Supply Voltage :
- 5V
- Package Shape :
- Square
- Program Memory Type :
- Flash
- Core Architecture :
- AVR
- RoHS Status :
- ROHS3 Compliant
- Frequency :
- 20MHz
- Number of I/Os :
- 32
- Core Processor :
- AVR
- Height Seated (Max) :
- 1mm
- Series :
- AVR® ATmega
- JESD-609 Code :
- e3
- Height :
- 0.88 mm
- Supply Voltage-Max (Vsup) :
- 5.5V
- Oscillator Type :
- Internal
- Watchdog Timer :
- yes
- Memory Type :
- Flash
- CPU Family :
- AVR RISC
- Supply Current-Max :
- 9 mA
- Moisture Sensitivity Level (MSL) :
- 3 (168 Hours)
- Mounting Type :
- Surface Mount
- Data Converters :
- A/D 8x10b
- DAC Resolution :
- -
- Datasheets
- ATMEGA644-20MU

Microcontrollers Microchip Technology ATMEGA644-20MU Overview
The ATMEGA644-20MU, a robust microcontroller from Microchip Technology, stands out in the world of embedded systems with its high-performance 8-bit AVR architecture. Designed to deliver efficiency and versatility, this MCU is ideal for applications requiring a perfect balance of power consumption and processing capability. With 64KB of in-system programmable flash, the ATMEGA644-20MU provides ample space for complex applications and the flexibility needed for future updates. This makes the Microcontrollers Microchip Technology ATMEGA644-20MU an excellent choice for designers looking to push the boundaries of what's possible with microcontroller technology.
ATMEGA644-20MU Features
The ATMEGA644-20MU boasts a comprehensive feature set that enhances its applicability in various demanding environments:
- 64KB ISP flash memory with read-while-write capabilities for efficient data handling.
- 2KB EEPROM, 4KB SRAM, expanding data storage options.
- Advanced RISC Architecture with up to 20 MIPS throughput at 20MHz, ensuring swift processing.
- Two 8-bit timers and two 16-bit timers for precise event management and PWM outputs.
- Full duplex USARTs, supporting serial communication with peripherals.
- Power-saving modes for increased battery life in portable applications.
- 44-pin VQFN package, designed for space-saving applications.
ATMEGA644-20MU Applications
- Industrial Automation: Empowers the control systems with its reliable processing capabilities to manage machinery and process data efficiently.
- Consumer Electronics: Ideal for powering smart home devices such as thermostats and home security systems, providing intelligent control and connectivity.
- Automotive Applications: Can be integrated into vehicle monitoring systems, enhancing dashboard functionalities and sensor integrations.
- Medical Devices: Utilized in portable medical diagnostics equipment, offering precise control and data management required for patient care.
- Communication Systems: Supports robust wired and wireless communication frameworks, suitable for networked devices in IoT deployments.
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.
















