sa555d-dt STMicroelectronics, sa555d-dt Datasheet - Page 6

• Manufacturer Part Number: sa555d-dt
• Description: General Purpose Single Bipolar Timers
• Manufacturer: STMicroelectronics

Electrical characteristics
Table 3.
1. Tested at V
2. This will determine the maximum value of R
3. Specified with trigger input high.
4. No protection against excessive pin 7 current is necessary, providing the package dissipation rating is not exceeded.
5. Time measured from a positive pulse (from 0V to 0.8xV
6/20
Symbol
V
I
dis(off)
dis(sat)
operation and 3.5MΩ for +5V operation.
Output pin. Trigger is tied to Threshold.
t
t
t
off
r
f
Discharge pin leakage current
(output high) V
Discharge pin saturation voltage
(output low)
Output rise time
Output fall time
Turn off time
V
V
CC
T
CC
CC
amb
= +5V and V
= +15V, I
= +5V, I
= +25°C, V
(4)
(5)
dis
dis
dis
(V
CC
= 4.5mA
= 10V
Parameter
reset
= 15mA
= +15V.
CC
= V
= +5V to +15V (unless otherwise specified)
CC
)
A
+ R
B
for 15V operation. The maximum total (R
CC
) on the Threshold pin to the transition from high to low on the
Min.
SE555
Typ.
180
100
100
0.5
20
80
Max.
100
480
200
200
200
Min.
A
+ R
NE555 - SA555
NE555 - SA555 - SE555
B
) is 20MΩ for 15V
Typ.
180
100
100
0.5
20
80
Max.
100
480
200
300
300
Unit
mV
nA
ns
µs