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