ATMEGA644PA-AUR Atmel, ATMEGA644PA-AUR Datasheet - Page 413
ATMEGA644PA-AUR
Manufacturer Part Number
ATMEGA644PA-AUR
Description
IC MCU AVR 64K FLASH 44TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA644PA-AUR
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
64KB (32K x 16)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA644PA-AUR
Manufacturer:
ATMEL
Quantity:
1 400
Part Number:
ATMEGA644PA-AUR
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
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28.3.11
8272A–AVR–01/10
Internal Oscillator Speed
Figure 28-133.ATmega324A: Bandgap Voltage vs. Temperature
Figure 28-134.ATmega324A: Watchdog Oscillator Frequency vs. Temperature
164A/164PA/324A/324PA/644A/644PA/1284/1284P
1.097
1.095
1.093
1.091
1.089
1.087
1.085
1.083
1.081
1.079
1.077
122
119
116
113
110
-40
-40
-30
-20
-20
-10
0
0
10
Temperature (°C)
Temperature (°C)
20
20
30
40
40
50
60
60
70
80
80
2.1 V
2.7 V
3.3 V
4.0 V
5.5 V
100
90
1.8V
3.6V
2.7V
4.5V
5.5V
413
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