ATMEGA64L-8MJ Atmel, ATMEGA64L-8MJ Datasheet - Page 132

• Manufacturer Part Number: ATMEGA64L-8MJ
• Description: IC MCU AVR 64K 5V 8MHZ 64-QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA64L-8MJ

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 53
• 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): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-MLF®, 64-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

16-bit
Timer/Counter
Register
Description
TCCR1A –
Timer/Counter1
Control Register A
TCCR3A –
Timer/Counter3
Control Register A
2490Q–AVR–06/10
Figure 57. Timer/Counter Timing Diagram, no Prescaling
Figure 58
Figure 58. Timer/Counter Timing Diagram, with Prescaler (f
Bit
0x2F (0x4F)
Read/Write
Initial Value
Bit
(0x8B)
Read/Write
(PC and PFC PWM)
(PC and PFC PWM)
and ICFn
and ICFn
(CTC and FPWM)
(CTC and FPWM)
(Update at TOP)
TOVn
(Update at TOP)
TOVn
TCNTn
TCNTn
OCRnx
(clk
as TOP)
TCNTn
TCNTn
OCRnx
as TOP)
(clk
shows the same timing data, but with the prescaler enabled.
clk
clk
clk
clk
I/O
COM3A1
(FPWM)
I/O
(FPWM)
COM1A1
I/O
Tn
I/O
Tn
/1)
/8)
R/W
(if used
R/W
(if used
7
7
0
COM3A0
COM1A0
R/W
R/W
6
6
0
TOP - 1
TOP - 1
COM3B1
COM1B1
TOP - 1
TOP - 1
R/W
Old OCRnx Value
R/W
5
5
0
Old OCRnx Value
COM3B0
COM1B0
R/W
R/W
4
4
0
COM3C1
COM1C1
TOP
TOP
TOP
TOP
R/W
R/W
3
3
0
COM3C0
COM1C0
R/W
R/W
2
2
0
clk_I/O
BOTTOM
TOP - 1
BOTTOM
WGM31
TOP - 1
WGM11
/8)
R/W
R/W
1
0
1
New OCRnx Value
New OCRnx Value
ATmega64(L)
WGM30
WGM10
R/W
R/W
0
0
0
BOTTOM + 1
BOTTOM + 1
TCCR3A
TCCR1A
TOP - 2
TOP - 2
132