NE555/SA555/SE555
ELECTRICAL CHARACTERISTICS
(continued)
Symbol
I
dis (off)
V
dis(sat)
Parameter
Discharge Pin Leakage Current
(output high) (V
dis
= 10V)
Discharge pin Saturation Voltage
(output low) - (note 5)
V
CC
= +15V, I
dis
= 15mA
V
CC
= +5V, I
dis
= 4.5mA
Output Rise Time
Output Fall Time
Turn off Time - (note 6) (V
reset
= V
CC
)
SE555
Min.
Typ.
20
Max.
100
NE555 - SA555
Min.
Typ.
20
Max.
100
Unit
nA
mV
180
80
100
100
0.5
480
200
200
200
180
80
100
100
0.5
480
200
555-05.TBL
555-08.EPS
555-06.EPS
t
r
t
f
t
off
Notes :
300
300
ns
µs
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 Supply Voltage
Figure 3 :
Delay Time versus Temperature
555-05.EPS
Figure 4 :
Low Output Voltage versus Output
Sink Current
4/10
555-07.EPS
STMICROELECTRONICS [ STMICROELECTRONICS ]
