ATMEGA644A-AU Tech Specifications

Category Embedded - Microcontrollers
Manufacturer Microchip
Factory Lead Time 7 Weeks
Contact Plating Tin
Mount Surface Mount
Mounting Type Surface Mount
Package / Case 44-TQFP
Number of Pins 44Pins
Data Converters A/D 8x10b
Number of I/Os 32I/Os
Watchdog Timers Yes
Operating Temperature -40°C~85°C TA
Packaging Tray
Series AVR® ATmega
Published 2008
JESD-609 Code e3
Pbfree Code yes
Part Status Active
Moisture Sensitivity Level (MSL) 3 (168 Hours)
Number of Terminations 44Terminations
Terminal Position QUAD
Terminal Form GULL WING
Peak Reflow Temperature (Cel) 260
Frequency 20MHz
Time@Peak Reflow Temperature-Max (s) 40
Base Part Number ATMEGA644A
Supply Voltage-Max (Vsup) 5.5V
Power Supplies 2/5V
Interface I2C, SPI, UART, USART
Memory Size 64kB
Oscillator Type Internal
RAM Size 4K x 8
Voltage - Supply (Vcc/Vdd) 1.8V~5.5V
uPs/uCs/Peripheral ICs Type MICROCONTROLLER, RISC
Core Processor AVR
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Program Memory Type FLASH
Core Size 8-Bit
Program Memory Size 64KB 32K x 16
Connectivity I2C, SPI, UART/USART
Bit Size 8
Has ADC YES
DMA Channels NO
Data Bus Width 8b
Number of Timers/Counters 3Timers/Counters
EEPROM Size 2K x 8
Boundary Scan YES
Low Power Mode YES
Format FIXED-POINT
Integrated Cache NO
Number of ADC Channels 8ADC Channels
Number of Serial I/Os 2Serial I/Os
Number of External Interrupts 3External Interrupts
Number of PWM Channels 6PWM Channels
Number of I2C Channels 1I2C Channel
Height 1.05mm
Length 10mm
Width 10mm
REACH SVHC No SVHC
Radiation Hardening No
RoHS Status ROHS3 Compliant
Lead Free Lead Free
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