ATMEGA644PA-MUR Atmel, ATMEGA644PA-MUR Datasheet - Page 540
ATMEGA644PA-MUR
Manufacturer Part Number
ATMEGA644PA-MUR
Description
IC MCU AVR 64K FLASH 44VQFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA644PA-MUR
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-VQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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8272A–AVR–01/10
Figure 28-373.ATmega1284P: Reset Pin Input Threshold vs. V
Figure 28-374.ATmega1284P: Reset Pin Input Threshold vs. V
164A/164PA/324A/324PA/644A/644PA/1284/1284P
2.5
1.5
0.5
2.5
1.5
0.5
2
1
0
2
1
0
1.5
1.5
2
2
2.5
2.5
3
3
V
V
CC
CC
3.5
3.5
(V)
(V)
4
4
CC
CC
4.5
4.5
(V
(V
IH
IL
, I/O Pin Read as ‘0’)
, I/O Pin Read as ‘1’)
5
5
5.5
5.5
-40 °C
-40 °C
85 °C
25 °C
85 °C
25 °C
540
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