ATMEGA644P-20MQ Atmel, ATMEGA644P-20MQ Datasheet - Page 379
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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26.2.10
8011O–AVR–07/10
BOD Threshold
Figure 26-78. BOD Threshold vs. Temperature (V
Figure 26-79. BOD Threshold vs. Temperature (V
4.35
4.25
2.75
2.65
4.4
4.3
4.2
2.8
2.7
2.6
-60
-60
-40
-40
-20
-20
0
0
Temperature (°C)
Temperature (°C)
20
20
ATmega164P/324P/644P
CC
CC
= 4.3V)
= 2.7V)
40
40
Falling V
Falling V
Rising V
Rising V
60
60
CC
CC
CC
CC
80
80
100
100
379
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