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ATTINY817-MFR. bảng dữ liệu(PDF) 57 Page - Microchip Technology

tên linh kiện ATTINY817-MFR.
Giải thích chi tiết về linh kiện  AVR짰 Microcontroller with Core Independent Peripherals and picoPower짰 Technology
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ATTINY817-MFR. bảng dữ liệu(HTML) 57 Page - Microchip Technology

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10.
CLKCTRL - Clock Controller
10.1
Features
•
All clocks and clock sources are automatically enabled when requested by peripherals
•
Internal oscillators:
–
16/20MHz oscillator (OSC20M)
–
32KHz Ultra Low Power oscillator (OSCULP32K)
•
External clock options:
–
32.768kHz crystal oscillator (XOSC32K)
–
External clock
•
Main clock features:
–
Safe run-time switching
–
Prescaler with 1x to 64x division in 12 different settings
10.2
Overview
The Clock Controller peripheral (CLKCTRL) controls, distributes, and prescales the clock signals from the
available oscillators. The CLKCTRL supports internal and external clock sources.
The CLKCTRL is based on an automatic clock request system, implemented in all peripherals on the
device. The peripherals will automatically request the clocks needed. If multiple clock sources are
available, the request is routed to the correct clock source.
The Main Clock (CLK_MAIN) is used by the CPU, RAM, and the IO bus. The Main Clock source can be
selected and prescaled. Some peripherals can share the same clock source as the Main Clock, or run
asynchronously to the Main Clock domain.
ATtiny417/817
© 2017 Microchip Technology Inc.
Datasheet Complete
DS40001901B-page 57



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