參數(shù)資料
型號(hào)： MR80C32E-12SBR
廠商： ATMEL CORP
元件分類： 微控制器/微處理器
英文描述： 8-BIT, 12 MHz, MICROCONTROLLER, CQCC44
封裝： LCC-44
文件頁(yè)數(shù)： 19/108頁(yè)
文件大?。?/td> 3682K
代理商： MR80C32E-12SBR
18
8069R–AVR–06/2013
XMEGA A4
Not recommended for new designs -
Use XMEGA A4U series
10. System Clock and Clock options
10.1
Features
Fast start-up time
Safe run-time clock switching
Internal Oscillators:
– 32 MHz run-time calibrated RC oscillator
– 2 MHz run-time calibrated RC oscillator
– 32.768 kHz calibrated RC oscillator
– 32 kHz Ultra Low Power (ULP) oscillator with 1 kHz ouput
External clock options
– 0.4 - 16 MHz Crystal Oscillator
– 32 kHz Crystal Oscillator
– External clock
PLL with internal and external clock options with 1 to 31x multiplication
Clock Prescalers with 1 to 2048x division
Fast peripheral clock running at 2 and 4 times the CPU clock speed
Automatic Run-Time Calibration of internal oscillators
Crystal Oscillator failure detection
10.2
Overview
XMEGA A4 has an advanced clock system, supporting a large number of clock sources. It incor-
porates both integrated oscillators, external crystal oscillators and resonators. A high frequency
Phase Locked Loop (PLL) and clock prescalers can be controlled from software to generate a
wide range of clock frequencies from the clock source input.
It is possible to switch between clock sources from software during run-time. After reset the
device will always start up running from the 2 Mhz internal oscillator.
A calibration feature is available, and can be used for automatic run-time calibration of the inter-
nal 2 MHz and 32 MHz oscillators. This reduce frequency drift over voltage and temperature.
A Crystal Oscillator Failure Monitor can be enabled to issue a Non-Maskable Interrupt and
switch to internal oscillator if the external oscillator fails. Figure 10-1 on page 19 shows the prin-
cipal clock system in XMEGA A4.
相關(guān)PDF資料
PDF描述
IQ80C52EXXX-12D 8-BIT, MROM, 12 MHz, MICROCONTROLLER, CQFP44
IP80C32-L16:D 8-BIT, 16 MHz, MICROCONTROLLER, PDIP40
MQ80C52CXXX-25P883 8-BIT, MROM, 25 MHz, MICROCONTROLLER, CQFP44
R83C154DTXXX-L16D 8-BIT, MROM, 16 MHz, MICROCONTROLLER, CQCC44
R83C154DTXXX-25D 8-BIT, MROM, 25 MHz, MICROCONTROLLER, CQCC44
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MR80C51BH 制造商:ROCHESTER 制造商全稱:ROCHESTER 功能描述:CMOS SINGLE - CHIP 8-BIT MICROCOMPUTER 64K program Memory Space
MR80C86 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:CMOS 16-Bit Microprocessor
MR80C86/B 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Harris Corporation 功能描述:Microprocessor, 16 Bit, 44 Pin, Ceramic, LCC
MR80C86-2 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:CMOS 16-Bit Microprocessor
MR80C86-2/883 制造商:Rochester Electronics LLC 功能描述:- Bulk
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*