ATMEGA644A-PU
- Mfr.Part #
- ATMEGA644A-PU
- Manufacturer
- Microchip Technology
- Package / Case
- 40-DIP (0.600, 15.24mm)
- Datasheet
- Download
- Description
- IC MCU 8BIT 64KB FLASH 40DIP
- Stock
- 5,400
- In Stock :
- 5,400
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- Manufacturer :
- Microchip Technology
- Product Category :
- Microcontrollers
- Core Processor :
- AVR
- Maximum Operating Temperature :
- +85 °C
- Mount :
- Through Hole
- Number of Terminations :
- 40
- Qualification Status :
- Not Qualified
- Factory Lead Time :
- 12 Weeks
- Number of I/O Lines :
- 32
- Supply Voltage-Max (Vsup) :
- 5.5V
- Pin Count :
- 40
- Supply Current-Max :
- 9 mA
- Memory Size :
- 64KB
- Base Product Number :
- ATMEGA644
- Interface :
- I2C, SPI, UART, USART
- Product Category :
- 8-bit Microcontrollers - MCU
- Package Shape :
- RECTANGULAR
- Bit Size :
- 8
- Core Architecture :
- AVR
- uPs/uCs/Peripheral ICs Type :
- MICROCONTROLLER, RISC
- REACH SVHC :
- No SVHC
- Number of I2C Channels :
- 1
- Terminal Finish :
- Matte Tin (Sn)
- Number of ADC Channels :
- 8
- Dimensions :
- 52.57 x 13.97 x 4.44mm
- Interface Type :
- JTAG, SPI, TWI, USART
- Number of I/O :
- 32
- Number of Terminals :
- 40
- Mounting Type :
- Through Hole
- RAM (words) :
- 4096
- Peak Reflow Temperature (Cel) :
- Not Applicable
- RoHS Status :
- ROHS3 Compliant
- Package Type :
- PDIP
- PWM Channels :
- yes
- RoHS :
- Details
- ROM Programmability :
- Flash
- Has ADC :
- yes
- Program Memory Type :
- Flash
- Memory Type :
- Flash
- Package :
- Tube
- Lifecycle Status :
- Production (Last Updated: 2 years ago)
- MSL :
- -
- Boundary Scan :
- yes
- Pbfree Code :
- yes
- Product :
- MCU
- Max Supply Voltage :
- 5.5 V
- Terminal Pitch :
- 2.54mm
- Published :
- 2007
- Instruction Set Architecture :
- RISC
- RAM (bytes) :
- 4096
- Speed :
- 20MHz
- Contact Plating :
- Tin
- Width :
- 13.97mm
- Surface Mount :
- No
- Interfaces :
- SPI/USART
- Minimum Operating Temperature :
- -40 °C
- Watchdog Timer :
- yes
- Number of Pins :
- 40
- Terminal Position :
- Dual
- CPU Family :
- AVR RISC
- Max Operating Temperature :
- 85 °C
- Number of SPI Channels :
- 1
- Mounting Style :
- Through Hole
- Package / Case :
- 40-DIP (0.600, 15.24mm)
- Number of Timers :
- 3
- On Chip Program ROM Width :
- 16
- Number of PWM Channels :
- 6
- DMA Channels :
- No
- Brand :
- Microchip Technology / Atmel
- Tradename :
- AVR
- Product Type :
- 8-bit Microcontrollers - MCU
- Device Core :
- AVR
- Oscillator Type :
- Internal
- Data Converters :
- A/D 8x10b
- JESD-30 Code :
- R-PDIP-T40
- Format :
- FIXED-POINT
- Integrated Cache :
- No
- Number of I/Os :
- 32 I/O
- Seated Height-Max :
- 4.826 mm
- JESD-609 Code :
- e3
- Frequency :
- 20MHz
- Core Size :
- 8-Bit
- Supplier Device Package :
- 40-PDIP
- Length :
- 52.58mm
- Power Supplies :
- 2/5V
- Family Name :
- ATMEGA
- Reach Compliance Code :
- Compliant
- Min Operating Temperature :
- -40 °C
- Number of Serial I/Os :
- 2
- Temperature Grade :
- Industrial
- Manufacturer :
- Microchip
- Height :
- 4.445mm
- ROM (words) :
- 32768
- On Chip Data RAM Width :
- 8
- Min Supply Voltage :
- 1.8 V
- Peripherals :
- Brown-out Detect/Reset, POR, PWM, WDT
- Base Part Number :
- ATMEGA644A
- Low Power Mode :
- yes
- Terminal Form :
- THROUGH-HOLE
- Program Memory Size :
- 64KB 32K x 16
- Number of Programmable I/O :
- 32
- Data Bus Width :
- 8B
- Product Status :
- Active
- Operating Temperature :
- -40°C~85°C TA
- Qualification :
- -
- Packaging :
- Tube
- Data Converter :
- A/D 8x10b
- Typical Operating Supply Voltage :
- 1.8 → 5.5 V
- Moisture Sensitivity Level (MSL) :
- Not Applicable
- Connectivity :
- I2C, SPI, UART/USART
- RAM Size :
- 4K x 8
- Schedule B :
- 8542310000, 8542310000/8542310000, 8542310000/8542310000/8542310000, 8542310000/8542310000/8542310000/8542310000
- EEPROM Size :
- 2K x 8
- Max Frequency :
- 20 MHz
- Series :
- AVR® ATmega
- Number of External Interrupts :
- 3
- Number of Timers/Counters :
- 3
- Voltage - Supply (Vcc/Vdd) :
- 1.8V~5.5V
- DAC Channels :
- No
- Datasheets
- ATMEGA644A-PU
ATMEGA644A-PU Documents

Microcontrollers Microchip Technology ATMEGA644A-PU Overview
The Microcontrollers Microchip Technology ATMEGA644A-PU is a highly versatile 8-bit microcontroller from Microchip Technology, featuring 64KB of in-system programmable flash. This advanced MCU is encapsulated in a 40-pin DIP package, providing robustness and ease of handling in manufacturing. Designed for applications requiring a high level of control and reliability, this microcontroller supports a wide range of functions and enhancements that boost performance while maintaining energy efficiency and cost-effectiveness. The integration of advanced RISC architecture with Microchip's innovative technology makes it an ideal choice for designers looking to push the boundaries of embedded system applications.
ATMEGA644A-PU Features
The ATMEGA644A-PU microcontroller boasts an array of features that enhance its applicability in sophisticated electronic assemblies. These features include a substantial 64KB of flash memory, a 2KB SRAM, and a 2KB EEPROM. It operates at a clock speed of up to 20MHz and includes an onboard analog-to-digital converter (ADC) with 10-bit resolution and 8 channels. The device supports multiple communication protocols such as USART, SPI, and TWI (I2C), facilitating easy integration into complex designs. Its extensive pinout and interrupt system also enhance its interface capabilities, supporting numerous external components.
ATMEGA644A-PU Applications
- Industrial Automation: Utilizes its robust I/O capabilities and interrupt system to manage and monitor automated production lines efficiently.
- Consumer Electronics: Drives user interfaces and complex logic in products like home appliances and personal gadgets, enhancing user interaction and device functionality.
- Automotive Applications: Serves in car entertainment systems, managing audio and display functions that improve user experience.
- Medical Devices: Applies its precise ADC and real-time capabilities to monitor critical parameters in medical diagnostic equipment.
- Utility Metering: Employs its flash memory and communication protocols in smart meters, facilitating efficient energy data management and reporting.
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