NA555, NE555, SA555, SE555
PRECISION TIMERS
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SLFS022F–SEPTEMBER 1973–REVISED JUNE 2006
Electrical Characteristics
VCC = 5 V to 15 V, TA = 25°C (unless otherwise noted)
NA555
SE555
NE555
SA555
PARAMETER
TEST CONDITIONS
UNIT
MIN
9.4
TYP
10
3.3
30
5
MAX
10.6
4
MIN
8.8
TYP
10
3.3
30
5
MAX
11.2
4.2
VCC = 15 V
VCC = 5 V
THRES voltage level
THRES current(1)
V
2.7
2.4
250
5.2
6
250
5.6
nA
4.8
3
4.5
1.1
VCC = 15 V
TA = –55°C to 125°C
TRIG voltage level
V
1.45
1.67
1.9
1.9
0.9
1
1.67
2.2
VCC = 5 V
TA = –55°C to 125°C
TRIG current
TRIG at 0 V
0.5
0.7
0.5
0.7
2
1
µA
0.3
0.3
RESET voltage level
V
TA = –55°C to 125°C
RESET at VCC
1.1
0.4
–1
0.1
0.1
0.4
RESET current
mA
nA
RESET at 0 V
–0.4
–0.4
–1.5
DISCH switch off-state
current
20
10
100
20
10
100
11
9.6
9.6
2.9
2.9
10.4
10.4
3.8
3.8
0.15
0.2
0.5
1
9
VCC = 15 V
TA = –55°C to 125°C
TA = –55°C to 125°C
TA = –55°C to 125°C
TA = –55°C to 125°C
TA = –55°C to 125°C
TA = –55°C to 125°C
TA = –55°C to 125°C
CONT voltage
(open circuit)
V
3.3
0.1
0.4
2
2.6
3.3
0.1
0.4
2
4
0.25
0.75
2.5
VCC = 5 V
VCC = 15 V, IOL = 10 mA
VCC = 15 V, IOL = 50 mA
VCC = 15 V, IOL = 100 mA
2.2
2.7
Low-level output voltage
V
VCC = 15 V, IOL = 200 mA
VCC = 5 V, IOL = 3.5 mA
2.5
0.1
2.5
0.1
0.35
0.2
0.35
0.4
VCC = 5 V, IOL = 5 mA
VCC = 5 V, IOL = 8 mA
VCC = 15 V, IOL = –100 mA
0.8
0.15
13.3
0.25
0.15
13.3
13
12
12.75
2.75
TA = –55°C to 125°C
High-level output voltage VCC = 15 V, IOH = –200 mA
VCC = 15 V, IOL = –100 mA
12.5
3.3
12.5
3.3
V
3
2
TA = –55°C to 125°C
VCC = 15 V
10
3
12
5
10
3
15
6
Output low, No load
Supply current
VCC = 5 V
mA
VCC = 15 V
9
10
4
9
13
5
Output high, No load
VCC = 5 V
2
2
(1) 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.
5
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