ATMEGA645P-MU Atmel, ATMEGA645P-MU Datasheet - Page 337
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ATMEGA645P-MU
Manufacturer Part Number
ATMEGA645P-MU
Description
IC MCU AVR 64K FLASH 64QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA645P-MU
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
54
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
64-VFQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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29.1.3
8285B–AVR–03/11
ATmega165A: Supply Current of I/O modules
ATmega165A/165PA/325A/325PA/3250A/3250PA/6
Figure 29-10. ATmega165A: Idle Supply Current vs. V
The tables and formulas below can be used to calculate the additional current consumption for
the different I/O modules in Active and Idle mode. The enabling or disabling of the I/O modules
are controlled by the Power Reduction Register. See
details.
Table 29-1.
Table 29-2.
PRR bit
PRADC
PRUSART0
PRSPI
PRTIM1
PRR bit
PRADC
PRUSART0
PRSPI
PRTIM1
9
8
7
6
5
4
3
2
1
0
1.5
ATmega165A Additional Current Consumption for the different I/O modules
(absolute values)
ATmega165A: Additional Current Consumption (percentage) in Active and Idle
mode
Additional Current consumption
compared to Active with external clock
(see
Typical numbers
7 µA
6.9 µA
6.6 µA
7 µA
V
Figure 29-1
2
CC
= 2V, F = 1MHz
2.5
and
3.2%
3.4%
3.3%
3.4%
Figure
3
29-2)
V
44 µA
43.5 µA
47 µA
47 µA
CC
3.5
V
(V)
CC
= 3V, F = 4MHz
”Power Reduction Register” on page 41
CC
4
Additional Current consumption
compared to Idle with external clock
(see
(32kHz Watch Crystal)
Figure 29-6
4.5
195 µA
210 µA
205 µA
206 µA
5
13.1%
13.0%
13.2%
12.7%
and
V
CC
Figure
= 5V, F = 8MHz
5.5
-45 °C
85 °C
25 °C
29-7)
337
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