NE555, SA555, SE555, SE555C
PRECISION TIMERS
SLFS022 – D1669, SEPTEMBER 1973—REVISED FEBRUARY 1992
electrical characteristics, V
= 5 V to 15 V, T = 25°C (unless otherwise noted)
A
CC
NE555, SA555,
SE555C
SE555
PARAMETER
TEST CONDITIONS
UNIT
MIN
9.4
TYP
10
MAX
10.6
4
MIN
TYP
10
MAX
V
V
= 15 V
= 5 V
8.8
2.4
11.2
4.2
250
5.6
2.2
2
CC
CC
V
nA
V
THRES voltage level
THRES current (see Note 2)
TRIG voltage level
2.7
3.3
30
3.3
30
250
5.2
1.9
0.9
1
V
V
= 15 V
= 5 V
4.8
5
4.5
1.1
5
CC
1.45
1.67
0.5
0.7
0.1
–0.4
20
1.67
0.5
0.7
0.1
–0.4
20
CC
TRIG current
TRIG at 0 V
µA
RESET voltage level
0.3
0.3
1
V
RESET at V
0.4
–1
0.4
–1.5
100
11
CC
mA
nA
V
RESET current
RESET at 0 V
DISCH switch off-state current
CONT voltage (open circuit)
100
10.4
3.8
0.15
0.5
2.2
V
CC
V
CC
= 15 V
= 5 V
9.6
2.9
10
9
10
3.3
0.1
0.4
2
2.6
3.3
0.1
0.4
2
4
I
I
I
I
I
I
I
I
I
= 10 mA
0.25
0.75
2.5
OL
OL
OL
OL
OL
OL
OH
OH
OH
= 50 mA
V
= 15 V
= 5 V
CC
= 100 mA
= 200 mA
= 5 mA
V
Low-level output voltage
2.5
0.1
0.15
13.3
12.5
3.3
10
2.5
0.1
0.15
13.3
12.5
3.3
10
0.2
0.35
0.4
V
V
CC
= 8 mA
0.25
= –100 mA
= –200 mA
= –100 mA
13
3
12.75
2.75
V
= 15 V
= 5 V
CC
CC
High-level output voltage
Supply current
V
V
V
V
V
= 15 V
= 5 V
12
5
15
6
CC
CC
CC
CC
Output low,
No load
3
3
mA
= 15 V
= 5 V
9
10
4
9
13
5
Output high, No load
2
2
NOTE 2: This parameter influences the maximum value of the timing resistors R and R in the circuit of Figure 12. For example, when
A
B
V
CC
= 5 V, the maximum value is R = R + R ≈ 3.4 MΩ, and for V = 15 V, the maximum value is 10 MΩ.
A
B
CC
operating characteristics, V
= 5 V and 15 V
CC
NE555, SA555,
SE555
TYP
TEST
CONDITIONS
PARAMETER
SE555C
TYP
1%
UNIT
†
MIN
MAX
MIN
MAX
Each timer, monostable§
Each timer, astable¶
0.5% 1.5%
1.5%
3%
‡
T
A
= 25°C
Initial error of timing interval
2.25%
50
Temperature coefficient
of timing interval
Each timer, monostable§
Each timer, astable¶
30
90
100
T
A
= MIN to MAX
ppm/°C
%/V
150
Supply voltage sensitivity
of timing interval
Each timer, monostable§
Each timer, astable¶
0.05
0.15
100
100
0.2
0.1
0.5
T
= 25°C
A
0.3
Output pulse rise time
Output pulse fall time
C
= 15 pF,
200
200
100
300
300
L
ns
T
A
= 25°C
100
†
‡
§
¶
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
Timing interval error is defined as the difference between the measured value and the average value of a random sample from each process run.
Values specified are for a device in a monostable circuit similar to Figure 9, with component values as follow: R = 2 kΩ to 100 kΩ, C = 0.1 µF.
A
Values specified are for a device in an astable circuit similar to Figure 12, with component values as follow: R = 1 kΩ to 100 kΩ, C = 0.1 µF.
A
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