ATMEGA649P-MUR Atmel, ATMEGA649P-MUR Datasheet - Page 157

• Manufacturer Part Number: ATMEGA649P-MUR
• Description: AVR, 64KB FLASH, 2KB EE, 4KB SRA
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA649P-MUR

• 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

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)
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