ATMEGA644A-AU
- Mfr.Part #
- ATMEGA644A-AU
- Manufacturer
- Microchip Technology
- Package / Case
- 44-TQFP
- Datasheet
- Download
- Description
- IC MCU 8BIT 64KB FLASH 44TQFP
- Stock
- 19,026
- In Stock :
- 19,026
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- Manufacturer :
- Microchip Technology
- Product Category :
- Microcontrollers
- CPU Family :
- AVR RISC
- Seated Height-Max :
- 1.2 mm
- JESD-609 Code :
- e3
- Mounting Type :
- Surface Mount
- Base Product Number :
- ATMEGA644
- Temperature Grade :
- Industrial
- RoHS Status :
- ROHS3 Compliant
- Maximum Operating Temperature :
- +85 °C
- Factory Lead Time :
- 7 Weeks
- Mount :
- Surface Mount
- Number of I/O :
- 32
- Number of I/O Lines :
- 32
- ROM Programmability :
- Flash
- Typical Operating Supply Voltage :
- 1.8 → 5.5 V
- Boundary Scan :
- yes
- Voltage - Supply (Vcc/Vdd) :
- 1.8V~5.5V
- Family Name :
- ATMEGA644A
- Max Operating Temperature :
- 85 °C
- uPs/uCs/Peripheral ICs Type :
- MICROCONTROLLER, RISC
- RAM (bytes) :
- 4096
- Speed :
- 20MHz
- Qualification :
- -
- Number of Serial I/Os :
- 2
- Lead Free :
- Lead Free
- Oscillator Type :
- Internal
- Low Power Mode :
- yes
- Terminal Form :
- Gull wing
- Supply Current-Max :
- 9 mA
- Base Part Number :
- ATMEGA644A
- Tradename :
- AVR
- PWM Channels :
- yes
- Package :
- Tray
- Dimensions :
- 10.1 x 10.1 x 1.05mm
- Schedule B :
- 8542310000
- Pbfree Code :
- yes
- Number of I2C Channels :
- 1
- Data Converters :
- A/D 8x10b
- Program Memory Type :
- Flash
- Number of Timers/Counters :
- 3
- Lifecycle Status :
- Production (Last Updated: 2 years ago)
- Number of SPI Channels :
- 1
- Has ADC :
- yes
- Package / Case :
- 44-TQFP
- Watchdog Timer :
- yes
- Qualification Status :
- Not Qualified
- Length :
- 10mm
- Height :
- 1.05mm
- Power Supplies :
- 2/5V
- Package Type :
- TQFP
- Number of Terminals :
- 44
- Contact Plating :
- Tin
- Package Shape :
- Square
- Terminal Position :
- QUAD
- Interface Type :
- 2-Wire, SPI, Serial, USART
- Number of Timers :
- 3
- On Chip Program ROM Width :
- 16
- Bit Size :
- 8
- Operating Temperature :
- -40°C~85°C TA
- Pin Count :
- 44
- Series :
- AVR® ATmega
- Product Type :
- 8-bit Microcontrollers - MCU
- Reach Compliance Code :
- Compliant
- Time@Peak Reflow Temperature-Max (s) :
- 40
- Product :
- MCU
- Integrated Cache :
- No
- Published :
- 2008
- Number of I/Os :
- 32 I/O
- Max Frequency :
- 20 MHz
- RoHS :
- Details
- Product Category :
- 8-bit Microcontrollers - MCU
- Packaging :
- Tray
- Number of Programmable I/O :
- 32
- Brand :
- Microchip Technology / Atmel
- Surface Mount :
- yes
- Terminal Pitch :
- 0.8 mm
- EEPROM Size :
- 2K x 8
- Peak Reflow Temperature (Cel) :
- 260
- Interface :
- I2C, SPI, UART, USART
- Core Size :
- 8-Bit
- Width :
- 10mm
- Peripherals :
- Brown-out Detect/Reset, POR, PWM, WDT
- RAM (words) :
- 4096
- MSL :
- MSL 3 - 168 hours
- RAM Size :
- 4K x 8
- Memory Size :
- 64KB
- Minimum Operating Temperature :
- -40 °C
- Memory Type :
- Flash
- Number of PWM Channels :
- 6
- DMA Channels :
- No
- ROM (words) :
- 32768
- Format :
- FIXED-POINT
- JESD-30 Code :
- S-PQFP-G44
- Mounting Style :
- SMD/SMT
- Moisture Sensitivity Level (MSL) :
- 3 (168 Hours)
- Terminal Finish :
- Matte Tin (Sn) - annealed
- Product Status :
- Active
- On Chip Data RAM Width :
- 8
- Data Bus Width :
- 8B
- Radiation Hardening :
- No
- Device Core :
- AVR
- Number of Terminations :
- 44
- Supply Voltage-Max (Vsup) :
- 5.5V
- Frequency :
- 20MHz
- Program Memory Size :
- 64KB 32K x 16
- Number of External Interrupts :
- 3
- Instruction Set Architecture :
- RISC
- Data Converter :
- A/D 8x10b
- Manufacturer :
- Microchip
- Min Operating Temperature :
- -40 °C
- Number of Pins :
- 44
- Connectivity :
- I2C, SPI, UART/USART
- Min Supply Voltage :
- 1.8 V
- DAC Channels :
- No
- Core Processor :
- AVR
- Core Architecture :
- AVR
- REACH SVHC :
- No SVHC
- Max Supply Voltage :
- 5.5 V
- Interfaces :
- SPI/USART
- Number of ADC Channels :
- 8
- Supplier Device Package :
- 44-TQFP (10x10)
- Datasheets
- ATMEGA644A-AU

Microcontrollers Microchip Technology ATMEGA644A-AU Overview
The ATMEGA644A-AU from Microchip Technology is a highly versatile and powerful microcontroller designed to meet the demanding requirements of sophisticated electronic designs. This 8-bit MCU is built on Microchip's advanced AVR architecture, enabling it to execute powerful instructions in a single clock cycle. The ATMEGA644A-AU offers a substantial 64KB of in-system programmable flash, making it ideal for applications requiring ample program memory. The compact 44-TQFP package ensures it fits seamlessly into space-constrained applications, while still providing robust functionality and reliability, typical of Microchip Technology's products.
ATMEGA644A-AU Features
- 8-bit AVR Microcontroller
- 64KB of in-system programmable flash memory
- 2KB SRAM, 2KB EEPROM
- 20 MHz maximum operating frequency
- 32 programmable I/O lines
- Multiple sleep modes for power efficiency
- Advanced RISC architecture
- 44-TQFP package
ATMEGA644A-AU Applications
- Industrial Automation: Utilized in control systems to manage machinery operations, enhancing precision and reliability.
- Smart Home Devices: Empowers IoT solutions for home automation, improving connectivity and functionality.
- Agricultural Equipment: Drives advanced monitoring systems in farming machinery, optimizing resource use and crop yields.
- Consumer Electronics: Serves as the core processing unit in various gadgets, from toys to advanced home appliances.
- Automotive: Used in automotive electronics for better control systems, including engine management and infotainment systems.
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