ATMEGA644P-20AU
- Mfr.Part #
- ATMEGA644P-20AU
- Manufacturer
- Microchip Technology
- Package / Case
- 44-TQFP
- Datasheet
- Download
- Description
- IC MCU 8BIT 64KB FLASH 44TQFP
- Stock
- 2,741
- In Stock :
- 2,741
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- Manufacturer :
- Microchip Technology
- Product Category :
- Microcontrollers
- Operating Temperature :
- -40°C~85°C TA
- Bit Size :
- 8
- Pin Count :
- 44
- Base Part Number :
- ATMEGA644P
- Terminal Pitch :
- 0.8 mm
- Voltage - Supply (Vcc/Vdd) :
- 2.7V~5.5V
- Width :
- 10.1mm
- Product Status :
- Active
- Supply Voltage :
- 5V
- Core Processor :
- AVR
- RAM (bytes) :
- 4096
- Number of ADC Channels :
- 8
- Frequency :
- 20MHz
- Supply Current-Max :
- 9 mA
- Manufacturer :
- Microchip
- Oscillator Type :
- Internal
- Package Type :
- TQFP
- Reach Compliance Code :
- Compliant
- Mount :
- Surface Mount
- Maximum Operating Temperature :
- +85 °C
- Watchdog Timer :
- yes
- Max Frequency :
- 20 MHz
- Minimum Operating Temperature :
- -40 °C
- Series :
- AVR® ATmega
- Temperature Grade :
- Industrial
- Number of I/O :
- 32
- Number of I/O Lines :
- 32
- Package :
- Tray
- Moisture Sensitivity Level (MSL) :
- 3 (168 Hours)
- Interface Type :
- 2-Wire, SPI, UART
- Tradename :
- AVR
- DAC Channels :
- No
- EEPROM Size :
- 2K x 8
- Schedule B :
- 8542310000
- ROM (words) :
- 32768
- Product Type :
- 8-bit Microcontrollers - MCU
- Time@Peak Reflow Temperature-Max (s) :
- 40
- Core Size :
- 8-Bit
- Terminal Position :
- QUAD
- Has ADC :
- yes
- Brand :
- Microchip Technology / Atmel
- Product :
- MCU
- Contact Plating :
- Tin
- Mounting Style :
- SMD/SMT
- Supply Voltage-Min (Vsup) :
- 4.5V
- Instruction Set Architecture :
- RISC
- Packaging :
- Tray
- Package / Case :
- 44-TQFP
- Data Bus Width :
- 8B
- Factory Lead Time :
- 7 Weeks
- Power Supplies :
- 3/5 V
- Number of SPI Channels :
- 1
- Number of Pins :
- 44
- Number of I2C Channels :
- 1
- Min Operating Temperature :
- -40 °C
- Density :
- 512 kb
- ROM Programmability :
- Flash
- Supplier Device Package :
- 44-TQFP (10x10)
- RAM Size :
- 4K x 8
- Number of Bits :
- 8
- Number of Terminations :
- 44
- Qualification Status :
- Not Qualified
- RoHS :
- Details
- uPs/uCs/Peripheral ICs Type :
- MICROCONTROLLER, RISC
- Additional Feature :
- IT ALSO OPERATES AT 10 MHZ WITH THE 2.7 V
- Program Memory Size :
- 64KB 32K x 16
- Data Converters :
- A/D 8x10b
- Device Core :
- AVR
- Core Architecture :
- AVR
- CPU Family :
- AVR RISC
- Interfaces :
- I2C, SPI, UART
- Number of PWM Channels :
- 6
- Number of I/Os :
- 32 I/O
- Min Supply Voltage :
- 2.7 V
- Published :
- 1997
- JESD-609 Code :
- e3
- Speed :
- 20MHz
- Supply Voltage-Max (Vsup) :
- 5.5V
- Number of Programmable I/O :
- 32
- REACH SVHC :
- No SVHC
- Package Shape :
- Square
- Terminal Finish :
- Matte Tin (Sn)
- MSL :
- MSL 3 - 168 hours
- Family Name :
- ATMEGA
- Base Product Number :
- ATMEGA644
- DMA Channels :
- No
- Radiation Hardening :
- No
- Peak Reflow Temperature (Cel) :
- 260
- Dimensions :
- 10.1 x 10.1 x 1.05mm
- Typical Operating Supply Voltage :
- 2.7 → 5.5 V
- Program Memory Type :
- Flash
- Number of Terminals :
- 44
- Interface :
- 2-Wire, I2C, SPI, UART, USART
- Product Category :
- 8-bit Microcontrollers - MCU
- Max Supply Voltage :
- 5.5 V
- Pbfree Code :
- yes
- Access Time :
- 20 μs
- Connectivity :
- I2C, SPI, UART/USART
- PWM Channels :
- yes
- Surface Mount :
- yes
- Terminal Form :
- Gull wing
- Qualification :
- -
- Data Converter :
- A/D 8x10b
- Lifecycle Status :
- Production (Last Updated: 2 years ago)
- JESD-30 Code :
- S-PQFP-G44
- Mounting Type :
- Surface Mount
- Peripherals :
- Brown-out Detect/Reset, POR, PWM, WDT
- Memory Size :
- 64KB
- Max Operating Temperature :
- 85 °C
- RoHS Status :
- ROHS3 Compliant
- Length :
- 10.1mm
- Number of Timers/Counters :
- 3
- Seated Height-Max :
- 1.2 mm
- Memory Type :
- EEPROM, FLASH
- Lead Free :
- Lead Free
- Height :
- 1.05mm
- Address Bus Width :
- 8B
- Datasheets
- ATMEGA644P-20AU

Microcontrollers Microchip Technology ATMEGA644P-20AU Overview
The Microcontrollers Microchip Technology ATMEGA644P-20AU is a highly versatile and powerful 8-bit microcontroller unit (MCU) designed for embedded applications requiring a mix of power efficiency, performance, and expansive I/O options. Manufactured by Microchip Technology, this MCU operates at a frequency of up to 20 MHz and is housed in a compact 44-pin TQFP package. Its 64KB of flash memory ensures ample space for complex programs, while additional features like EEPROM and SRAM enhance its utility in various applications. This microcontroller is perfect for developers looking for a robust platform to build sophisticated systems in commercial and industrial environments.
ATMEGA644P-20AU Features
The ATMEGA644P-20AU boasts several key features making it ideal for demanding applications. It includes 64KB of ISP flash memory, 2KB of EEPROM, and 4KB of SRAM, supporting extensive data handling and storage capabilities. The MCU offers multiple programmable serial USARTs, a 10-bit ADC with 8 channels, and dual programmable 16-bit timers, facilitating precise control and versatile connectivity options. Enhanced power-saving modes ensure efficient operation, minimizing energy consumption when idle or in low-power tasks.
ATMEGA644P-20AU Applications
- Industrial Control Systems: The ATMEGA644P-20AU can be used to manage automation processes, thanks to its robust I/O capabilities and real-time performance, ensuring reliable system responses in manufacturing environments.
- Consumer Electronics: This MCU is ideal for powering consumer gadgets such as smart home devices or interactive toys, providing the necessary processing power and connectivity options to handle complex user interactions and connectivity with other devices.
- Automotive Applications: Employed in vehicle systems for monitoring and control functions, the ATMEGA644P-20AU supports stringent automotive standards for reliability and durability under various conditions.
- Medical Devices: Its precision and low power consumption make it suitable for medical monitoring equipment, where long-term reliability and accuracy are critical.
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