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參數(shù)資料
| 型號： | UPC1555C |
| 廠商： | NEC Corp. |
| 英文描述： | TIMER CIRCUIT |
| 中文描述： | 定時器電路 |
| 文件頁數(shù)： | 3/12頁 |
| 文件大小： | 103K |
| 代理商： | UPC1555C |
3
μ
PC1555
ELECTRICAL CHARACTERISTICS
(T
A
= 25
°
C, V
CC
= 5 to 15 V)
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
Supply voltage
V
CC
4.5
16
V
Supply current
I
CC
V
CC
= 5 V, R
L
=
∞
, V
O
= “L”
Note 6
0
3
6
mA
V
CC
= 15 V, R
L
=
∞
, V
O
= “L”
Note 6
0
10
15
mA
Threshold voltage
V
th
2/3 V
CC
V
Threshold current
I
th
Note 7
0
0.1
0.25
μ
A
Trigger voltage
V
tr
V
CC
= 15 V
5
V
V
CC
= 5 V
1.67
V
Trigger current
I
tr
0.5
μ
A
Reset voltage
V
reset
Note 8
0.4
0.7
1.0
V
Reset current
I
reset
0.1
mA
Control voltage
V
cont
V
CC
= 15 V
9.0
10
11
V
V
CC
= 5 V
2.6
3.33
4
V
Output saturation voltage “L”
V
OL
V
CC
= 15 V, I
SINK
= 10 mA
0
0.1
0.25
V
V
CC
= 15 V, I
SINK
= 50 mA
0
0.4
0.75
V
V
CC
= 15 V, I
SINK
= 100 mA
0
2.0
2.5
V
V
CC
= 15 V, I
SINK
= 200 mA
2.5
V
V
CC
= 5 V, I
SINK
= 5 mA
0
0.1
0.35
V
Output saturation voltage “H”
V
OH
V
CC
= 15 V, I
SOURCE
= 200 mA
12.5
V
V
CC
= 15 V, I
SOURCE
= 100 mA
12.75
13.3
15.0
V
V
CC
= 5 V, I
SOURCE
= 100 mA
2.75
3.3
5.0
V
Propagation delay (L
→
H)
t
PLH
200
ns
Propagation delay (H
→
L)
t
PHL
200
ns
Minimum trigger pulse width
t
W (tr)
V
CC
= 15 V, V
tr min.
= 2.5 V
25
ns
Minimum output pulse width
t
W (OUT)
V
CC
= 15 V, V
tr min.
= 2.5 V
t
W (tr)
= 3
μ
s
6
μ
s
Minimum reset pulse width
t
w (reset)
V
CC
= 15 V, V
tr min.
= 0 V
900
ns
Timing error
Astable multivibrator
Initial accuracy
R
A
, R
B
= 1 to 100 k
1
%
Temperature drift
C = 0.1
μ
F
50
ppm/
°
C
Supply voltage drift
0.01
%/V
Notes 6.
When the output is “H”, the circuit current decreases by approximately 1 mA (when V
CC
= 5 V).
7.
The maximum allowable value for R
A
+ R
B
is determined for a supply voltage of 15 V. The maximum
value is 20 M
.
8.
When the reset pin is driven to a low level, discharge T
r
Q
14
is turned on, stopping oscillation (the output
state is undefined).
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