ATMEGA644-20PU
- Mfr.Part #
- ATMEGA644-20PU
- Manufacturer
- Microchip Technology
- Package / Case
- 40-DIP (0.600, 15.24mm)
- Datasheet
- Download
- Description
- IC MCU 8BIT 64KB FLASH 40DIP
- Stock
- 117
- In Stock :
- 117
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- Manufacturer :
- Microchip Technology
- Product Category :
- Microcontrollers
- Schedule B :
- 8542310000
- REACH SVHC :
- No SVHC
- Supplier Device Package :
- 40-PDIP
- JESD-30 Code :
- R-PDIP-T40
- Package Type :
- PDIP
- Mounting Type :
- Through Hole
- Maximum Operating Temperature :
- +85 °C
- Oscillator Type :
- Internal
- Number of I2C Channels :
- 1
- Family Name :
- ATMEGA
- Minimum Operating Temperature :
- -40 °C
- Contact Plating :
- Tin
- Terminal Position :
- Dual
- Number of SPI Channels :
- 1
- Product Status :
- Active
- Supply Voltage-Max (Vsup) :
- 5.5V
- Has ADC :
- yes
- Length :
- 52.58mm
- Program Memory Size :
- 64KB 32K x 16
- MSL :
- -
- RoHS :
- Details
- Max Operating Temperature :
- 85 °C
- Radiation Hardening :
- No
- RAM (bytes) :
- 4096
- Frequency :
- 20MHz
- Brand :
- Microchip Technology / Atmel
- Voltage - Supply (Vcc/Vdd) :
- 2.7V~5.5V
- Number of I/Os :
- 32 I/O
- Access Time :
- 20 μs
- Number of Pins :
- 40
- Tradename :
- AVR
- Max Supply Voltage :
- 5.5 V
- Manufacturer :
- Microchip
- Max Frequency :
- 20 MHz
- Product Type :
- 8-bit Microcontrollers - MCU
- Supply Voltage-Min (Vsup) :
- 4.5V
- PWM Channels :
- yes
- Lead Free :
- Lead Free
- Qualification :
- -
- ROM (words) :
- 32768
- Bit Size :
- 8
- Memory Type :
- Flash
- Mounting Style :
- Through Hole
- Min Operating Temperature :
- -40 °C
- Number of Terminals :
- 40
- Packaging :
- Tube
- Product Category :
- 8-bit Microcontrollers - MCU
- uPs/uCs/Peripheral ICs Type :
- MICROCONTROLLER, RISC
- Factory Lead Time :
- 12 Weeks
- Data Bus Width :
- 8B
- Supply Current-Max :
- 9 mA
- Pbfree Code :
- yes
- Data Converter :
- A/D 8x10b
- EEPROM Size :
- 2K x 8
- CPU Family :
- AVR RISC
- Number of Programmable I/O :
- 32
- DAC Channels :
- No
- Power Supplies :
- 3/5 V
- Number of I/O Lines :
- 32
- Operating Temperature :
- -40°C~85°C TA
- Reach Compliance Code :
- Compliant
- Min Supply Voltage :
- 2.7 V
- ROM Programmability :
- Flash
- Speed :
- 20MHz
- Package :
- Tube
- Pin Count :
- 40
- Lifecycle Status :
- Production (Last Updated: 2 years ago)
- Package Shape :
- RECTANGULAR
- Number of I/O :
- 32
- Data Converters :
- A/D 8x10b
- Program Memory Type :
- Flash
- Core Size :
- 8-Bit
- Terminal Pitch :
- 2.54mm
- Seated Height-Max :
- 4.826 mm
- JESD-609 Code :
- e3
- Height :
- 4.826mm
- Peak Reflow Temperature (Cel) :
- Not Applicable
- Typical Operating Supply Voltage :
- 2.7 → 5.5 V
- Peripherals :
- Brown-out Detect/Reset, POR, PWM, WDT
- Core Processor :
- AVR
- Terminal Finish :
- Matte Tin (Sn)
- Supply Voltage :
- 5V
- Core Architecture :
- AVR
- Connectivity :
- I2C, SPI, UART/USART
- DAC Resolution :
- -
- Temperature Grade :
- Industrial
- Interface Type :
- I2C, SPI, USART
- Memory Size :
- 64KB
- Terminal Form :
- THROUGH-HOLE
- Device Core :
- AVR
- Series :
- AVR® ATmega
- Number of PWM Channels :
- 6
- Watchdog Timer :
- yes
- Base Product Number :
- ATMEGA644
- Number of ADC Channels :
- 8
- Base Part Number :
- ATMEGA644
- RoHS Status :
- ROHS3 Compliant
- Interface :
- 2-Wire, I2C, SPI, UART, USART
- Qualification Status :
- Not Qualified
- Number of Terminations :
- 40
- Number of Timers/Counters :
- 3
- Mount :
- Through Hole
- Product :
- MCU
- Interfaces :
- SPI/USART
- Published :
- 1997
- DMA Channels :
- No
- Moisture Sensitivity Level (MSL) :
- Not Applicable
- Width :
- 13.97mm
- Instruction Set Architecture :
- RISC
- Dimensions :
- 52.57 x 13.97 x 4.44mm
- Additional Feature :
- ALSO OPERATES AT 2.7V SUPPLY AT 10 MHZ
- Surface Mount :
- No
- Package / Case :
- 40-DIP (0.600, 15.24mm)
- RAM Size :
- 4K x 8
- Datasheets
- ATMEGA644-20PU

Microcontrollers Microchip Technology ATMEGA644-20PU Overview
The Microcontrollers Microchip Technology ATMEGA644-20PU is a highly versatile 8-bit microcontroller from Microchip Technology, designed to meet the rigorous demands of modern embedded systems. This MCU is built on an advanced AVR architecture, enabling sophisticated system management and enhanced device performance with a 64KB flash memory. Ideal for applications requiring high-level code execution and data processing within a compact footprint, the ATMEGA644-20PU offers a balanced combination of performance, power efficiency, and programming flexibility, making it a top choice for industry professionals.
ATMEGA644-20PU Features
The ATMEGA644-20PU microcontroller boasts a wide array of features suitable for robust electronic designs. Key features include 64KB of in-system programmable flash, 2KB SRAM, 1KB EEPROM, and a clock speed of up to 20MHz. Additionally, it supports multiple communication protocols such as SPI, UART, and I2C, making it highly adaptable to various communication requirements. It also includes 32 programmable I/O lines, 8-channel 10-bit A/D converter, and multiple power-saving modes, which are crucial for low-power applications.
ATMEGA644-20PU Applications
- Home Automation Systems: Used in controlling lighting, HVAC, and security systems within smart homes through its robust I/O capabilities and flexible communication interfaces.
- Industrial Control: Drives complex machinery and processes in industrial settings, thanks to its extensive memory and robust processing power.
- Medical Devices: Empowers critical medical device operations such as monitoring systems and small-scale medical imaging, by providing reliable data handling and real-time processing abilities.
- Automotive: Suitable for automotive applications such as dashboard controllers and diagnostic systems where reliability and real-time performance are paramount.
- Consumer Electronics: Powers consumer electronics, including handheld devices, gaming consoles, and advanced wearables, leveraging its high-speed processing and low power consumption.
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