Datasheet

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Frequency Divider
Voltage − 2 V/div
Time − 0.1 ms/div
Capacitor Voltage
Output Voltage
Input Voltage
V
CC
= 5 V
R
A
= 1250 Ω
C = 0.02 µF
See Figure 9
NA555 , NE555 , SA555 , SE555
PRECISION TIMERS
SLFS022F – SEPTEMBER 1973 – REVISED JUNE 2006
APPLICATION INFORMATION (continued)
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.
Figure 17. Divide-by-Three Circuit Waveforms
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