ATMEGA644P-20MUR
- Mfr.Part #
- ATMEGA644P-20MUR
- Manufacturer
- Atmel (Microchip Technology)
- Package / Case
- 44-VFQFN Exposed Pad
- Datasheet
- Download
- Description
- IC MCU 8BIT 64KB FLASH 44VQFN
- Stock
- 15,207
- In Stock :
- 15,207
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- Manufacturer :
- Atmel (Microchip Technology)
- Product Category :
- Microcontrollers
- Temperature Grade :
- Industrial
- ROM (words) :
- 32768
- Core Size :
- 8-Bit
- Supply Voltage-Max (Vsup) :
- 5.5V
- Number of Terminations :
- 44
- Supply Voltage-Min (Vsup) :
- 4.5V
- Width :
- 7 mm
- Package :
- Tape and Reel (TR);Cut Tape (CT);Digi-Reel®;
- Connectivity :
- I2C, SPI, UART/USART
- JESD-609 Code :
- e3
- Terminal Form :
- NO LEAD
- Packaging :
- Tape and Reel (TR)
- Qualification Status :
- Not Qualified
- Factory Lead Time :
- 7 Weeks
- uPs/uCs/Peripheral ICs Type :
- MICROCONTROLLER, RISC
- RoHS :
- Details
- Mounting Type :
- Surface Mount
- Brand :
- Microchip Technology
- Series :
- AVR® ATmega
- Power Supplies :
- 3/5V
- Product Type :
- 8-bit Microcontrollers - MCU
- Published :
- 1997
- RAM Size :
- 4K x 8
- Peak Reflow Temperature (Cel) :
- 260
- Supplier Device Package :
- 44-VQFN (7x7)
- CPU Family :
- AVR RISC
- DMA Channels :
- No
- Base Part Number :
- ATMEGA644P
- Terminal Finish :
- Matte Tin (Sn)
- Has ADC :
- yes
- Interface :
- I2C, SPI, UART, USART
- Pbfree Code :
- yes
- Moisture Sensitivity Level (MSL) :
- 3 (168 Hours)
- Number of I/O Lines :
- 32
- Frequency :
- 20MHz
- Surface Mount :
- yes
- Additional Feature :
- OPERATES AT 2.7 V MIMIMUM SUPPLY AT 10 MHZ
- Program Memory Type :
- Flash
- Tradename :
- AVR
- Manufacturer :
- Microchip
- Supply Voltage :
- 5V
- Voltage - Supply (Vcc/Vdd) :
- 2.7V~5.5V
- PWM Channels :
- yes
- Peripherals :
- Brown-out Detect/Reset, POR, PWM, WDT
- Bit Size :
- 8
- ROM Programmability :
- Flash
- Number of I/O :
- 32
- Time@Peak Reflow Temperature-Max (s) :
- 40
- JESD-30 Code :
- S-PQCC-N44
- DAC Channels :
- No
- Core Processor :
- AVR
- Terminal Pitch :
- 0.5mm
- Package / Case :
- 44-VFQFN Exposed Pad
- Product Category :
- 8-bit Microcontrollers - MCU
- Terminal Position :
- QUAD
- Package Shape :
- Square
- Number of Terminals :
- 44
- Reach Compliance Code :
- Compliant
- Memory Size :
- 64KB
- Supply Current-Max :
- 9 mA
- Program Memory Size :
- 64KB 32K x 16
- Product Status :
- Active
- Height Seated (Max) :
- 1mm
- Base Product Number :
- ATMEGA644
- RoHS Status :
- ROHS3 Compliant
- Speed :
- 20MHz
- Data Bus Width :
- 8B
- Mounting Style :
- SMD/SMT
- RAM (bytes) :
- 4096
- Lead Free :
- Lead Free
- Operating Temperature :
- -40°C~85°C TA
- Seated Height-Max :
- 1 mm
- EEPROM Size :
- 2K x 8
- Product :
- MCU
- Length :
- 7mm
- Data Converters :
- A/D 8x10b
- Data Converter :
- A/D 8x10b
- Oscillator Type :
- Internal
- Datasheets
- ATMEGA644P-20MUR
ATMEGA644P-20MUR Documents

Microcontrollers Atmel (Microchip Technology) ATMEGA644P-20MUR Overview
The Microcontrollers Atmel (Microchip Technology) ATMEGA644P-20MUR is a high-performance microcontroller unit (MCU) from the renowned Atmel family, now part of Microchip Technology. Designed to provide a perfect balance between power consumption and processing capability, this MCU operates at 20MHz and is based on the advanced AVR 8-bit architecture. With 64KB of in-system programmable flash, the ATMEGA644P-20MUR is ideal for applications requiring ample code storage and robust operation in demanding environments. Its small form factor in a 44-VQFN package makes it particularly suitable for space-constrained applications without sacrificing its input/output capabilities and functionality.
ATMEGA644P-20MUR Features
This MCU is equipped with features that enhance its efficiency and utility in complex electronic systems. Key features include: - 64KB of flash memory - 2KB of EEPROM - 4KB SRAM - 32 programmable I/O lines - 8-channel, 10-bit analog-to-digital converter - Dual programmable serial USARTs - Master/slave SPI serial interface - Byte-oriented 2-wire serial interface - A JTAG interface for programming and debugging - Six PWM channels - Watchdog timer with separate on-chip oscillator These specifications provide the flexibility needed for various application developments, from industrial control systems to complex consumer electronic devices.
ATMEGA644P-20MUR Applications
- Industrial Control Systems: The MCU's robust I/O capabilities and fast processing speed make it suitable for managing automated production lines, enhancing precision and efficiency.
- Smart Home Devices: Utilizes its networking capabilities through USART and SPI to enable communication in devices such as smart thermostats and lighting systems, contributing to IoT solutions.
- Automotive Applications: Its reliability and programmable features support automotive components like dashboard controllers and diagnostic systems.
- Consumer Electronics: Ideal for power management and user interface functions in products like personal gadgets and gaming devices.
- Medical Devices: The ATMEGA644P-20MUR's accuracy in data handling and real-time sensor interfacing is crucial for medical monitoring equipment.
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