NE556 - SA556 - SE556
Table 3.
Symbol
Electrical characteristics
T
amb
= +25° C, V
CC
= +5 V to +15 V (unless otherwise specified) (continued)
SE556
Parameter
Min.
Typ.
20
Max.
100
Min.
Typ.
20
Max.
100
nA
Discharge pin leakage current (output high)
(V
dis
= 10V)
Discharge pin saturation voltage (output low)
(4)
V
CC
= +15V, I
dis
= 15mA
V
CC
= +5V, I
dis
= 4.5mA
Output rise time
Output fall time
Turn-off time
(5)
(V
reset
= V
CC
)
NE556 - SA556
Unit
I
dis(off)
V
dis(sat)
t
r
t
f
toff
180
80
100
100
0.5
480
200
200
200
180
80
100
100
0.5
480
200
300
300
mV
ns
µs
1. Tested at V
CC
= +5 V and VCC = +15 V
2. This will determine the maximum value of R
A
+ R
B
for +15V operation the max total is R = 20 MΩ and for +5 V operation
the max total R = 3.5 MΩ
3. Specified with trigger input high
4. No protection against excessive pin 7 current is necessary, providing the package dissipation rating will not be exceeded
5. Time measured from a positive going input pulse from 0 to 0.8 x V
CC
into the threshold to the drop from high to low of the
output trigger is tied to threshold.
5/16
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