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| 型號(hào)： | CAT1232LPU-T13 |
| 英文描述： | 5V and 3.3V Supply Voltage Monitor and Reset Circuit |
| 中文描述： | 5V和3.3V電源電壓監(jiān)控和復(fù)位電路 |
| 文件頁(yè)數(shù)： | 3/9頁(yè) |
| 文件大小： | 117K |
| 代理商： | CAT1232LPU-T13 |
3
CAT1232LP/CAT1832
Doc. No. 25089, Rev. A
2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
ELECTRICAL CHARACTERISTICS
Unless otherwise stated, 1.0V
≤
V
CC
≤
5.5V and over the operating temperature range of -40
°
C to +85
°
C. All
voltages are referenced to ground.
ABSOLUTE MAXIMUM RATINGS*
Voltage on V
CC
....................................... -0.5V to 7.0V
Voltage on
ST
and TD ................. -0.5V to V
CC
+ 0.5V
Voltage on
PBRST
,
RESET
and RESET ............................ -0.5V to V
CC
+ 0.5V
Notes:
(1)
PBRST
is internally pulled HIGH to V
CC
through a nominal 40k
resistor (R
PU
).
(2)
RESET
is an open drain output on the CAT1232LP.
(3) RESET remains within 0.5V of V
CC
on power-down until V
CC
falls
below 2V. RESET remains within 0.5V of ground on power-down
until V
CC
falls below 2.0V.
Maximum Junction Temperature ...................... 125
°
C
Storage Temperature Range ............ -65
°
C to +150
°
C
Lead Soldering Temperature (10 sec).............. 300
°
C
Operating Temperature Range........... -40
°
C to +85
°
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6
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2
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–
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V
C
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A
C
2
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6
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7
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N
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O
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(
t
P
p
T
P
2
T
0
5
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6
4
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V
P
T
C
C
V
=
L
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T
(
t
P
p
T
C
C
)
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L
2
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5
2
7
3
9
4
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V
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C
C
)
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N
G
=
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(
t
P
p
T
2
3
8
1
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A
C
0
8
8
8
7
9
V
V
P
T
C
C
t
D
T
t
D
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t
D
T
V
H
O
I
H
O
V
C
C
c
W
c
W
c
W
p
O
V
=
L
O
T
(
t
P
p
T
C
C
)
2
3
8
1
T
A
C
7
4
5
5
4
6
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d
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T
T
T
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6
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5
5
2
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0
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0
5
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1
6
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μ
t
A
0
)
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C
C
V
V
C
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V
t
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t
p
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V
4
=
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0
5
3
–
A
μ
I
L
O
I
L
R
U
P
C
N
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g
U
a
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p
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n
p
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V
4
=
t
p
O
0
1
0
2
3
A
A
m
μ
k
p
a
t
)
–
0
5
5
r
e
e
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n
)
0
4
5
t
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B
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0
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T
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R
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T
S
e
m
i
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A
t
s
e
R
0
5
2
0
0
6
0
0
0
1
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T
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C
C
E
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C
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B
P
E
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S
)
0
2
s
s
n
μ
t
D
P
R
o
E
S
E
T
T
5
8
t
F
0
2
s
s
μ
m
t
Y
L
D
P
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A
r
T
W
T
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E
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e
d
R
E
e
0
2
t
U
P
R
v
a
e
R
t
E
S
I
R
s
μ
5
=
0
5
2
0
0
6
0
0
0
1
s
m
t
R
V
5
7
o
V
5
2
0
s
n
(4) Must not exceed the minimum watchdog time-out period (t
TD
).
The watchdog circuit cannot be disabled. To avoid a reset,
ST
must be strobed.
(5) Measured with V
CC
≥
2.7V.
(6) Measured with V
CC
< 2.7V.
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