ATMEGA1280V-8AUR Atmel, ATMEGA1280V-8AUR Datasheet - Page 40
ATMEGA1280V-8AUR
Manufacturer Part Number
ATMEGA1280V-8AUR
Description
MCU AVR 128K FLASH 8MHZ 100TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA1280V-8AUR
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
Connectivity
EBI/EMI, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
86
Program Memory Size
128KB (64K x 16)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 16x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TQFP, 100-VQFP
For Use With
ATSTK600-TQFP100 - STK600 SOCKET/ADAPTER 100-TQFPATSTK503 - STARTER KIT AVR EXP MODULE 100P
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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9. System Clock and Clock Options
9.1
9.2
9.2.1
2549M–AVR–09/10
Overview
Clock Systems and their Distribution
CPU Clock – clk
This section describes the clock options for the AVR microcontroller.
Figure 9-1
need not be active at a given time. In order to reduce power consumption, the clocks to modules
not being used can be halted by using different sleep modes, as described in
ment and Sleep Modes” on page
Figure 9-1.
The CPU clock is routed to parts of the system concerned with operation of the AVR core.
Examples of such modules are the General Purpose Register File, the Status Register and the
data memory holding the Stack Pointer. Halting the CPU clock inhibits the core from performing
general operations and calculations.
CPU
Asynchronous
Timer/Counter
Timer/Counter
Oscillator
presents the principal clock systems in the AVR and their distribution. All of the clocks
Clock Distribution
General I/O
Modules
External Clock
clk
clk
ASY
I/O
ATmega640/1280/1281/2560/2561
52. The clock systems are detailed below.
System Clock
Control Unit
AVR Clock
Multiplexer
Prescaler
Clock
ADC
Source clock
clk
Oscillator
ADC
Crystal
CPU Core
clk
clk
Reset Logic
CPU
FLASH
Crystal Oscillator
Watchdog clock
Low-frequency
Watchdog Timer
RAM
Watchdog
Oscillator
“Power Manage-
Calibrated RC
Flash and
EEPROM
Oscillator
40
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