ATMEGA64L-8MUR Atmel, ATMEGA64L-8MUR Datasheet - Page 147
ATMEGA64L-8MUR
Manufacturer Part Number
ATMEGA64L-8MUR
Description
MCU AVR 64KB FLASH 8MHZ 64QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA64L-8MUR
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
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATMEGA64L-8MUR
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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Definitions
Timer/Counter
Clock Sources
2490Q–AVR–06/10
ate a PWM or variable frequency output on the Output Compare pin (OC2). For details, see
“Output Compare Unit” on page 148. The Compare Match event will also set the Compare Flag
(OCF2) which can be used to generate an Output Compare interrupt request.
Many register and bit references in this document are written in general form. A lower case “n”
replaces the Timer/Counter number, in this case 2. However, when using the register or bit
defines in a program, the precise form must be used (that is, TCNT2 for accessing
Timer/Counter2 counter value and so on).
The definitions in
Table 63. Definitions
The Timer/Counter can be clocked by an internal or an external clock source. The clock source
is selected by the Clock Select logic which is controlled by the Clock Select (CS22:0) bits
located in the Timer/Counter Control Register (TCCR2). For details on clock sources and pres-
caler, see
BOTTOM
MAX
TOP
“Timer/Counter3, Timer/Counter2 and Timer/Counter1 Prescalers” on page
The counter reaches the BOTTOM when it becomes 0x00.
The counter reaches its MAXimum when it becomes 0xFF (decimal 255).
The counter reaches the TOP when it becomes equal to the highest
value in the count sequence. The TOP value can be assigned to be the
fixed value 0xFF (MAX) or the value stored in the OCR2 Register. The
assignment is dependent on the mode of operation.
Table 63
are also used extensively throughout this section.
ATmega64(L)
144.
147
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