ATMEGA644A-MUR Atmel, ATMEGA644A-MUR Datasheet - Page 352
ATMEGA644A-MUR
Manufacturer Part Number
ATMEGA644A-MUR
Description
IC MCU AVR 64K FLASH 44VQFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA644A-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 28-17. ATmega164A: I/O Pin Pull-up Resistor Current vs. Input Voltage (V
Figure 28-18. ATmega164A: Reset Pull-up Resistor Current vs. Reset Pin Voltage
164A/164PA/324A/324PA/644A/644PA/1284/1284P
140
120
100
80
60
40
20
35
30
25
20
15
10
5
0
0
0
0
(V
CC
= 1.8V).
1
0.5
2
V
V
RESET
OP
3
1
(V)
(V)
4
1.5
5
2
6
CC
-40 °C
-40 °C
25 °C
85 °C
25 °C
85 °C
= 5V).
352
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