NE555 Timer
Astable Operation
--->
50% Duty cycle Oscillator
--->
RC timer
Enter--> RA:
ohm
kohm
Mohm
tolerance
0.1%
1%
5%
Enter--> RB:
ohm
kohm
Mohm
tolerance
0.1%
1%
5%
Enter--> C1:
uF
nF
pF
tolerance
1%
5%
10%
20%
+80/-20%
Frequency: Min.
typ.
Max.
Hz
KHz
MHz
Typical timing: tH =
tL =
in
Sec
mS
uS
50% Duty cycle Oscillator
Enter--> Rc:
ohm
kohm
Mohm
tolerance
0.1%
1%
5%
Enter--> C:
uF
nF
pF
tolerance
1%
5%
10%
20%
+80/-20%
Frequency: Min.
typ.
Max.
Hz
KHz
MHz
RC timer
Enter--> Rc:
ohm
kohm
Mohm
tolerance
0.1%
1%
5%
Enter--> C:
uF
nF
pF
tolerance
1%
5%
10%
20%
+80/-20%
Frequency: Min.
typ.
Max.
Hz
KHz
MHz