參數(shù)資料
型號: MQ80C52XXX-36/883
廠商: ATMEL CORP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 36 MHz, MICROCONTROLLER, CQFP44
封裝: CERAMIC, QFP-44
文件頁數(shù): 72/152頁
文件大小: 2528K
代理商: MQ80C52XXX-36/883
27
ATmega8535(L)
2502K–AVR–10/06
The CKSEL0 fuse together with the SUT1..0 Fuses select the start-up times as shown in
Notes:
1. These options should only be used when not operating close to the maximum fre-
quency of the device, and only if frequency stability at start-up is not important for the
application. These options are not suitable for crystals.
2. These options are intended for use with ceramic resonators and will ensure fre-
quency stability at start-up. They can also be used with crystals when not operating
close to the maximum frequency of the device, and if frequency stability at start-up is
not important for the application.
Table 5. Start-up Times for the Crystal Oscillator Clock Selection
CKSEL0
SUT1..0
Start-up Time from
Power-down and
Power-save
Additional Delay
from Reset
(V
CC = 5.0V)
Recommended Usage
000
258 CK(1)
4.1 ms
Ceramic resonator, fast
rising power
001
258 CK(1)
65 ms
Ceramic resonator,
slowly rising power
010
1K CK(2)
Ceramic resonator, BOD
enabled
011
1K CK(2)
4.1 ms
Ceramic resonator, fast
rising power
100
1K CK(2)
65 ms
Ceramic resonator,
slowly rising power
1
01
16K CK
Crystal Oscillator, BOD
enabled
1
10
16K CK
4.1 ms
Crystal Oscillator, fast
rising power
1
11
16K CK
65 ms
Crystal Oscillator, slowly
rising power
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