ATMEGA64L-8MQR Atmel, ATMEGA64L-8MQR Datasheet - Page 112
ATMEGA64L-8MQR
Manufacturer Part Number
ATMEGA64L-8MQR
Description
MCU AVR 64KB FLASH 8MHZ 64QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA64L-8MQR
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
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16-bit
Timer/Counter
(Timer/Counter
1 and
Timer/Counter3
)
Restrictions in
ATmega103
Compatibility Mode
Overview
2490Q–AVR–06/10
The 16-bit Timer/Counter unit allows accurate program execution timing (event management),
wave generation, and signal timing measurement. The main features are:
•
•
•
•
•
•
•
•
•
•
•
Note that in ATmega103 compatibility mode, only one 16-bit Timer/Counter is available
(Timer/Counter1). Also note that in ATmega103 compatibility mode, the Timer/Counter1 has two
compare registers (Compare A and Compare B) only.
Most register and bit references in this datasheet are written in general form. A lower case “n”
replaces the Timer/Counter number, and a lower case “x” replaces the Output Compare unit
channel. However, when using the register or bit defines in a program, the precise form must be
used (that is, TCNT1 for accessing Timer/Counter1 counter value and so on). The physical I/O
Register and bit locations for ATmega64 are listed in the
tion” on page
A simplified block diagram of the 16-bit Timer/Counter is shown in
I/O Registers, including I/O bits and I/O pins, are shown in bold.
True 16-bit Design (that is, allows 16-bit PWM)
Three Independent Output Compare Units
Double Buffered Output Compare Registers
One Input Capture Unit
Input Capture Noise Canceler
Clear Timer on Compare Match (Auto Reload)
Glitch-free, Phase Correct Pulse Width Modulator (PWM)
Variable PWM Period
Frequency Generator
External Event Counter
Ten Independent Interrupt Sources (TOV1, OCF1A, OCF1B, OCF1C, ICF1, TOV3, OCF3A, OCF3B,
OCF3C, and ICF3)
132.
“16-bit Timer/Counter Register Descrip-
Figure
ATmega64(L)
46. CPU accessible
112
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