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參數(shù)資料
| 型號(hào)： | MQ80C52CXXX-25P883 |
| 廠商： | ATMEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 25 MHz, MICROCONTROLLER, CQFP44 |
| 封裝： | CERAMIC, QFP-44 |
| 文件頁(yè)數(shù)： | 38/108頁(yè) |
| 文件大?。?/td> | 3682K |
| 代理商： | MQ80C52CXXX-25P883 |
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35
8069R–AVR–06/2013
XMEGA A4
Not recommended for new designs -
Use XMEGA A4U series
19. RTC - 16-bit Real-Time Counter
19.1
Features
16-bit Timer
Flexible Tick resolution ranging from 1 Hz to 32.768 kHz
One Compare register
One Period register
Clear timer on Overflow or Compare Match
Overflow or Compare Match event and interrupt generation
19.2
Overview
The XMEGA A4 includes a 16-bit Real-time Counter (RTC). The RTC can be clocked from an
accurate 32.768 kHz Crystal Oscillator, the 32.768 kHz Calibrated Internal Oscillator, or from the
32 kHz Ultra Low Power Internal Oscillator. The RTC includes both a Period and a Compare
register. For details, see Figure 19-1.
A wide range of Resolution and Time-out periods can be configured using the RTC. With a max-
imum resolution of 30.5 s, time-out periods range up to 2000 seconds. With a resolution of 1
second, the maximum time-out period is over 18 hours (65536 seconds).
Figure 19-1.
Real Time Counter overview
10-bit
prescaler
Counter
Period
Compare
=
Overflow
Compare Match
1 kHz
32 kHz
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| R83C154DTXXX-L16D | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, CQCC44 |
| R83C154DTXXX-25D | 8-BIT, MROM, 25 MHz, MICROCONTROLLER, CQCC44 |
| R83C154DTXXX-30R | 8-BIT, MROM, 30 MHz, MICROCONTROLLER, CQCC44 |
| MR80C52CXXX-20SCR | 8-BIT, MROM, 20 MHz, MICROCONTROLLER, CQCC44 |
| MQ83C154XXX-30P883D | 8-BIT, MROM, 30 MHz, MICROCONTROLLER, CQFP44 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MQ82370-20 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MQ8238020 | 制造商:Intel 功能描述:CONTROLLER: OTHER |
| MQ82380-20 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MQ82380-20/R | 制造商:Rochester Electronics LLC 功能描述: |
| MQ82592 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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