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AT90PWM3 bảng dữ liệu(PDF) 28 Page - ATMEL Corporation

tên linh kiện AT90PWM3
Giải thích chi tiết về linh kiện  8-bit Microcontroller with 8K Bytes In-System Programmable Flash
PDF  361 Pages
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nhà sản xuất  ATMEL [ATMEL Corporation]
Trang chủ  http://www.atmel.com
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AT90PWM3 bảng dữ liệu(HTML) 28 Page - ATMEL Corporation

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4317J–AVR–08/10
AT90PWM2/3/2B/3B
7.
System Clock
7.1
Clock Systems and their Distribution
Figure 7-1 presents the principal clock systems in the AVR and their distribution. All of the clocks
need not be active at a given time. In order to reduce power consumption, the clocks to unused
modules can be halted by using different sleep modes, as described in “Power Management and
Sleep Modes” on page 40. The clock systems are detailed below.
Figure 7-1.
Clock Distribution AT90PWM2/3
General I/O
Modules
ADC
CPU Core
RAM
clk
I/O
AVR Clock
Control Unit
clk
CPU
Flash and
EEPROM
clk
FLASH
clk
ADC
Source Clock
Watchdog Timer
Watchdog
Oscillator
Reset Logic
Clock
Multiplexer
Watchdog Clock
Calibrated RC
Oscillator
(Crystal
Oscillator)
External Clock
PSC0/1/2
PLL
CLK
PLL



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