ATMEGA644P-20MQ Atmel, ATMEGA644P-20MQ Datasheet - Page 339
![MCU AVR 64K FLASH 20MHZ 44-QFN](/photos/12/13/121316/313-44-qfn_sml.jpg)
ATMEGA644P-20MQ
Manufacturer Part Number
ATMEGA644P-20MQ
Description
MCU AVR 64K FLASH 20MHZ 44-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA164P-20AU.pdf
(439 pages)
Specifications of ATMEGA644P-20MQ
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)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-VQFN Exposed Pad
For Use With
ATSTK600 - DEV KIT FOR AVR/AVR32
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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8011O–AVR–07/10
Figure 26-2. Active Supply Current vs. Frequency (1 MHz - 20 MHz).
Figure 26-3. Active Supply Current vs. V
20
18
16
14
12
10
8
6
4
2
0
0
9
8
7
6
5
4
3
2
1
0
1.5
2
2
4
1.8V
2.5
6
3
8
Frequency (MHz)
CC
(Internal RC Oscillator, 8 MHz).
V
CC
10
3.5
2.7V
(V)
ATmega164P/324P/644P
12
4
3.3V
14
4.5
16
5
4.0V
18
5.5
-40°C
85°C
25°C
20
5.5V
5.0V
4.5V
339
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