ATMEGA649P-MU Atmel, ATMEGA649P-MU Datasheet - Page 157
ATMEGA649P-MU
Manufacturer Part Number
ATMEGA649P-MU
Description
IC MCU AVR 64K FLASH 64QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA649P-MU
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, LCD, 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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8284A–AVR–10/10
Figure 17-9
Figure 17-9. Timer/Counter Timing Diagram, with Prescaler (f
Figure 17-10
Figure 17-10. Timer/Counter Timing Diagram, Setting of OCF2A, with Prescaler (f
Figure 17-11 on page 158
ATmega169A/169PA/329A/329PA/649A/649P/3290A/3290PA/6490A/6490P
TCNTn
TCNTn
(clk
(clk
OCRnx
OCFnx
TOVn
clk
clk
clk
clk
I/O
I/O
I/O
I/O
Tn
Tn
/8)
/8)
shows the same timing data, but with the prescaler enabled.
shows the setting of OCF2A in all modes except CTC mode.
OCRnx - 1
MAX - 1
shows the setting of OCF2A and the clearing of TCNT2 in CTC mode.
OCRnx
MAX
OCRnx Value
OCRnx + 1
BOTTOM
clk_I/O
/8)
BOTTOM + 1
OCRnx + 2
clk_I/O
/8)
157
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