Technical Document
Specifications
Brand
MicrochipFamily Name
ATmega644A
Package Type
TQFP
Mounting Type
Surface Mount
Pin Count
44
Device Core
AVR
Data Bus Width
8bit
Program Memory Size
64 kB
Maximum Frequency
20MHz
RAM Size
4 kB
USB Channels
0
Number of PWM Units
1
Number of SPI Channels
3
Number of USART Channels
2
Number of UART Channels
2
Number of I2C Channels
1
Typical Operating Supply Voltage
1.8 → 5.5 V
Number of CAN Channels
0
Width
10.1mm
Dimensions
10.1 x 10.1 x 1.05mm
Pulse Width Modulation
1 (6 Channel)
Program Memory Type
Flash
Number of Ethernet Channels
0
Number of PCI Channels
0
Maximum Number of Ethernet Channels
0
Minimum Operating Temperature
-40 °C
Instruction Set Architecture
RISC
Number of ADC Units
1
Maximum Operating Temperature
+85 °C
Length
10.1mm
ADCs
8 x 10 bit
Height
1.05mm
Number of LIN Channels
0
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Technical Document
Specifications
Brand
MicrochipFamily Name
ATmega644A
Package Type
TQFP
Mounting Type
Surface Mount
Pin Count
44
Device Core
AVR
Data Bus Width
8bit
Program Memory Size
64 kB
Maximum Frequency
20MHz
RAM Size
4 kB
USB Channels
0
Number of PWM Units
1
Number of SPI Channels
3
Number of USART Channels
2
Number of UART Channels
2
Number of I2C Channels
1
Typical Operating Supply Voltage
1.8 → 5.5 V
Number of CAN Channels
0
Width
10.1mm
Dimensions
10.1 x 10.1 x 1.05mm
Pulse Width Modulation
1 (6 Channel)
Program Memory Type
Flash
Number of Ethernet Channels
0
Number of PCI Channels
0
Maximum Number of Ethernet Channels
0
Minimum Operating Temperature
-40 °C
Instruction Set Architecture
RISC
Number of ADC Units
1
Maximum Operating Temperature
+85 °C
Length
10.1mm
ADCs
8 x 10 bit
Height
1.05mm
Number of LIN Channels
0