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

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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