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