ATmega64 Atmel Corporation, ATmega64 Datasheet - Page 132

• Manufacturer Part Number: ATmega64
• Manufacturer: Atmel Corporation

Specifications of ATmega64

• Flash (kbytes): 64 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 53
• Ext Interrupts: 8
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Uart: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 4
• Eeprom (bytes): 2048
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 4
• Output Compare Channels: 8
• Input Capture Channels: 2
• Pwm Channels: 7
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

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
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