Factory Lead Time  

6 Weeks

Contact Plating  

Tin

Mount  

Surface Mount

Mounting Type  

Surface Mount

Package / Case  

44-TQFP

Number of Pins  

44

Data Converters  

A/D 8x10b

Watchdog Timers  

Yes

Number of I/Os  

32

Series  

AVR® ATmega

Published  

2008

Packaging  

Tape & Reel (TR)

Operating Temperature  

-40°C~85°C TA

JESD-609 Code  

e3

Pbfree Code  

yes

Part Status  

Active

Moisture Sensitivity Level (MSL)  

3 (168 Hours)

Number of Terminations  

44

Terminal Position  

QUAD

Terminal Form  

GULL WING

Peak Reflow Temperature (Cel)  

260

Terminal Pitch  

0.8mm

Frequency  

20MHz

Time@Peak Reflow Temperature-Max (s)  

40

Base Part Number  

ATMEGA644A

Supply Voltage-Max (Vsup)  

5.5V

Power Supplies  

2/5V

Supply Voltage-Min (Vsup)  

1.8V

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

PWM Channels  

YES

DAC Channels  

NO

Number of Timers/Counters  

3

EEPROM Size  

2K x 8

On Chip Program ROM Width  

16

Boundary Scan  

YES

Low Power Mode  

YES

Format  

FIXED-POINT

Integrated Cache  

NO

RAM (words)  

4096

Number of Serial I/Os  

2

Number of External Interrupts  

3

On Chip Data RAM Width  

8

Length  

10mm

Height Seated (Max)  

1.2mm

Radiation Hardening  

No

RoHS Status  

ROHS3 Compliant