ATMEGA644V-10MUR Atmel, ATMEGA644V-10MUR Datasheet - Page 319
ATMEGA644V-10MUR
Manufacturer Part Number
ATMEGA644V-10MUR
Description
MCU AVR 64K FLASH 10MHZ 44QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA644V-10MUR
Core Processor
AVR
Core Size
8-Bit
Speed
10MHz
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
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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26.4
Table 26-1.
Notes:
26.4.1
26.4.2
2593N–AVR–07/10
Factory Calibration
User
Calibration
Clock Characteristics
1. Voltage range for ATmega644V.
2. Voltage range for ATmega644.
External Clock Drive Waveforms
External Clock Drive
Calibration Accuracy of Internal RC Oscillator
Figure 26-3. External Clock Drive Waveforms
Table 26-2.
Note:
Symbol
7.3 MHz - 8.1 MHz
1/t
Δ
t
t
t
t
t
CHCX
CLCX
CLCH
CHCL
CLCL
t
CLCL
CLCL
Frequency
8.0 MHz
All DC Characteristics contained in this datasheet are based on simulation and characterization of
other AVR microcontrollers manufactured in the same process technology. These values are pre-
liminary values representing design targets, and will be updated after characterization of actual
silicon.
Parameter
Oscillator
Frequency
Clock Period
High Time
Low Time
Rise Time
Fall Time
Change in period
from one clock
cycle to the next
External Clock Drive
V
IL1
V
IH1
1.8V - 5.5V
2.7V - 5.5V
Min.
500
200
200
1.8V - 5.5V
0
V
3V
CC
V
CC
=
(1)
(2)
Max.
2.0
2.0
2
2
Min.
125
50
50
2.7V - 5.5V
0
V
CC
Temperature
-40⋅C - 85⋅C
=
Max.
1.6
1.6
25⋅C
8
2
Min.
62.5
25
25
4.5V - 5.5V
0
V
CC
=
ATmega644
Max.
Calibration Accuracy
0.5
0.5
16
2
±10%
Units
±1%
MHz
μs
ns
%
319
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