ATMEGA644A-AUR Atmel, ATMEGA644A-AUR Datasheet - Page 376
ATMEGA644A-AUR
Manufacturer Part Number
ATMEGA644A-AUR
Description
IC MCU AVR 64K FLASH 44TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA644A-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
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28.2.5
28.2.6
8272A–AVR–01/10
Power-save Supply Current
Standby Supply Current
Figure 28-62. ATmega164PA: Power-save Supply Current vs. V
Figure 28-63. ATmega164PA: Standby Supply Current vs. V
164A/164PA/324A/324PA/644A/644PA/1284/1284P
0.18
0.16
0.14
0.12
0.08
0.06
0.04
0.02
0.2
0.1
1.8
1.5
1.2
0.9
0.6
0.3
0
1.5
0
1.5
and 32 kHz Crystal Oscillator Running).
2
2
2.5
2.5
3
3
V
CC
V
3.5
CC
3.5
(V)
(V)
4
4
CC
4.5
4.5
(Watchdog Timer Disabled).
CC
(Watchdog Timer Disabled
5
5
5.5
5.5
6MHz_xtal
6MHz_res
4MHz_res
4MHz_xtal
2MHz_res
2MHz_xtal
1MHz_res
450kHz_res
25 °C
376
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