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| 型號(hào)： | N555 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | PRECISION TIMERS |
| 中文描述： | 精密定時(shí)器 |
| 文件頁(yè)數(shù)： | 5/24頁(yè) |
| 文件大?。?/td> | 356K |
| 代理商： | N555 |
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Electrical Characteristics
V
CC
= 5 V to 15 V, T
A
= 25
°
C (unless otherwise noted)
NA555, NE555, SA555, SE555
PRECISION TIMERS
SLFS022F–SEPTEMBER 1973–REVISED JUNE 2006
NA555
NE555
SA555
TYP
SE555
PARAMETER
TEST CONDITIONS
UNIT
MIN
9.4
2.7
TYP
10
3.3
30
MAX
10.6
MIN
8.8
2.4
MAX
11.2
4.2
250
5.6
V
CC
= 15 V
V
CC
= 5 V
10
3.3
30
THRES voltage level
V
4
THRES current
(1)
250
5.2
nA
4.8
5
4.5
5
V
CC
= 15 V
T
A
= –55
°
C to 125
°
C
3
6
TRIG voltage level
V
1.45
1.67
1.9
1.9
0.9
1.1
1.67
2.2
V
CC
= 5 V
T
A
= –55
°
C to 125
°
C
TRIG current
TRIG at 0 V
0.5
0.7
0.5
0.7
2
1
μ
A
0.3
1
0.3
RESET voltage level
V
T
A
= –55
°
C to 125
°
C
RESET at V
CC
RESET at 0 V
1.1
0.4
–1
0.1
–0.4
0.1
–0.4
0.4
–1.5
RESET current
mA
DISCH switch off-state
current
20
100
20
100
nA
9.6
9.6
2.9
2.9
10
10.4
10.4
3.8
3.8
0.15
0.2
0.5
9
10
11
V
CC
= 15 V
T
A
= –55
°
C to 125
°
C
CONT voltage
(open circuit)
V
3.3
2.6
3.3
4
V
CC
= 5 V
T
A
= –55
°
C to 125
°
C
0.1
0.1
0.25
V
CC
= 15 V, I
OL
= 10 mA
T
A
= –55
°
C to 125
°
C
0.4
0.4
0.75
V
CC
= 15 V, I
OL
= 50 mA
T
A
= –55
°
C to 125
°
C
1
2
2.2
2.7
2
2.5
V
CC
= 15 V, I
OL
= 100 mA
Low-level output voltage
T
A
= –55
°
C to 125
°
C
V
V
CC
= 15 V, I
OL
= 200 mA
V
CC
= 5 V, I
OL
= 3.5 mA
2.5
2.5
T
A
= –55
°
C to 125
°
C
0.35
0.2
0.8
0.25
0.1
0.1
0.35
V
CC
= 5 V, I
OL
= 5 mA
T
A
= –55
°
C to 125
°
C
V
CC
= 5 V, I
OL
= 8 mA
0.15
13.3
0.15
13.3
0.4
13
12
12.75
V
CC
= 15 V, I
OL
= –100 mA
T
A
= –55
°
C to 125
°
C
High-level output voltage
V
CC
= 15 V, I
OH
= –200 mA
12.5
3.3
12.5
3.3
V
3
2
2.75
V
CC
= 15 V, I
OL
= –100 mA
T
A
= –55
°
C to 125
°
C
V
CC
= 15 V
V
CC
= 5 V
V
CC
= 15 V
V
CC
= 5 V
10
12
10
15
Output low, No load
3
9
2
5
3
9
2
6
Supply current
mA
10
13
Output high, No load
4
5
(1)
This parameter influences the maximum value of the timing resistors R
and R
in the circuit of
Figure 12
. For example,
when V
CC
= 5 V, the maximum value is R = R
A
+ R
B
≈
3.4 M
, and for V
CC
= 15 V, the maximum value is 10 M
.
5
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