Datasheet

ELECTRICAL CHARACTERISTICS (continued)
Symbol Parameter
SE555 NE555 - SA555
Unit
Min. Typ. Max. Min. Typ. Max.
I
dis(off)
Discharge Pin Leakage Current
(output high) (V
dis
= 10V)
20 100 20 100 nA
V
dis(sat)
Discharge pin Saturation Voltage
(output low) - (note 5)
V
CC
= +15V, I
dis
= 15mA
V
CC
= +5V, I
dis
= 4.5mA
180
80
480
200
180
80
480
200
mV
t
r
t
f
Output Rise Time
Output Fall Time
100
100
200
200
100
100
300
300
ns
t
off
Turn off Time - (note 6) (V
reset
=V
CC
) 0.5 0.5 µs
Notes : 5. No protection against excessive Pin 7 current is necessary, providing the package dissipation rating will not be exceeded.
6. Time mesaured from a positive going input pulse from 0 to 0.8x V
CC
into the threshold to the drop from high to low of the
output trigger is tied to treshold.
Figure 1 : Minimum Pulse Width Required for
Trigering
Figure 2 : Supply Current versus SupplyVoltage
Figure 3 : Delay Time versus Temperature Figure 4 : Low Output Voltage versus Output
Sink Current
NE555/SA555/SE555
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