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參數資料
| 型號： | N555 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | PRECISION TIMERS |
| 中文描述： | 精密定時器 |
| 文件頁數： | 12/24頁 |
| 文件大?。?/td> | 356K |
| 代理商： | N555 |
www.ti.com
Frequency Divider
By adjusting the length of the timing cycle, the basic circuit of
Figure 9
can be made to operate as a frequency
divider.
Figure 17
shows a divide-by-three circuit that makes use of the fact that retriggering cannot occur during
the timing cycle.
V
Time 0.1 ms/div
Capacitor Voltage
Output Voltage
Input Voltage
Figure 17. Divide-by-Three Circuit Waveforms
V
CC
= 5 V
R
A
= 1250
C = 0.02
μ
F
See Figure 9
NA555, NE555, SA555, SE555
PRECISION TIMERS
SLFS022F–SEPTEMBER 1973–REVISED JUNE 2006
APPLICATION INFORMATION (continued)
12
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