參數(shù)資料
型號(hào)： IV83C154DXXX-30
廠商： TEMIC SEMICONDUCTORS
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 30 MHz, MICROCONTROLLER, PQFP44
文件頁(yè)數(shù)： 32/81頁(yè)
文件大?。?/td> 663K
代理商： IV83C154DXXX-30
38
ATtiny28L/V
1062F–AVR–07/06
1.
In the same operation, write a logical “1” to WDTOE and WDE. A logical “1” must
be written to WDE even though it is set to one before the disable operation starts.
2.
Within the next four clock cycles, write a logical “0” to WDE. This disables the
Watchdog.
Bits 2..0 – WDP2, WDP1, WDP0: Watchdog Timer Prescaler 2, 1 and 0
The WDP2, WDP1 and WDP0 bits determine the Watchdog Timer prescaling when the
Watchdog Timer is enabled. The different prescaling values and their corresponding
time-out periods are shown in Table 15.
Note:
The frequency of the Watchdog oscillator is voltage-dependent, as shown in the section
The WDR (Watchdog Reset) instruction should always be executed before the Watchdog
Timer is enabled. This ensures that the reset period will be in accordance with the
Watchdog Timer prescale settings. If the Watchdog Timer is enabled without reset, the
Watchdog Timer may not start counting from zero.
Table 15. Watchdog Timer Prescale Select
WDP2
WDP1
WDP0
Number of WDT
Oscillator
Cycles
Typical
Time-out at
V
CC = 2.0V
Typical
Time-out at
V
CC = 3.0V
Typical
Time-out at
V
CC = 5.0V
0
16K cycles
0.15 s
47 ms
15 ms
0
1
32K cycles
0.30 s
94 ms
30 ms
0
1
0
64K cycles
0.60 s
0.19 s
60 ms
0
1
128K cycles
1.2 s
0.38 s
0.12 s
1
0
256K cycles
2.4 s
0.75 s
0.24 s
1
0
1
512K cycles
4.8 s
1.5 s
0.49 s
1
0
1,024K cycles
9.6 s
3.0 s
0.97 s
1
2,048K cycles
19 s
6.0 s
1.9 s
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
IV83C154-L16 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller
IV83C154T-12 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
IV83C154T-16 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller
IV83C154T-20 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller
IV83C154T-25 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller
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