參數(shù)資料
型號(hào): FMS7401
廠商: Fairchild Semiconductor Corporation
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: Digital Power Controller
中文描述: 數(shù)字電源控制器
文件頁數(shù): 9/80頁
文件大?。?/td> 1535K
代理商: FMS7401
PRODUCT SPECIFICATION
FMS7401/7401L
REV. 1.0.2 6/23/04
9
The BOR circuit should be used in situations when Vcc rises and falls slowly and in situations when Vcc does not fall to 0V
before rising back to the device’s normal operating range. The BOR circuit can be thought of as a supplement function to the
POR circuit if Vcc does not fall below 0.7V.
Figure 2. BOR and POR Circuit Relationship Diagram
1. Available only on the 14-pin package option.
2. Refer to the
Timer 0 Circuit
section of the datasheet for details regarding the Watchdog Reset.
3. Refer to
Table 30
of the
Device Memory
section of the datasheet for the detailed memory map.
4. Refer to the
Device Memory
section of the datasheet for details regarding the Initialization Register 1.
5. Refer to
Table 28
and
Table 29
of the
Device Memory
section of the datasheet for details.
Vcc (Pin 8)
BOR
R
eset
C
i
r
c
u
i
t
O
u
t
p
u
t
Global
R
eset
t
o
L
o
g
ic
Ex
te
r
n
al
R
eset
Pin
(
14-
Pin
O
n
l
y
)
B
A
o
u
t
p
u
t
P
OR
o
u
t
p
u
t
(Pin
7
)
V
CC
T
i
m
e
BOR
O
u
t
p
u
t
1
.
7
5
0
V
CC
V
CC
0
P
OR
o
u
t
p
u
t
P
OR
O
u
t
p
u
t
P
u
l
se
3
.
0
V
0
V
CC
3
.
0
V
0
T
h
e
R
eset
ci
r
c
u
i
t
w
i
ll
t
r
i
gg
e
r
f
r
o
m
H
g
h
t
o
L
o
w
.
A
t
t
h
a
t
t
i
m
e
h
i
g
h
wh
ic
h
w
i
ll
r
eset
all
R
eset
w
i
ll
g
o
h
i
g
h
a
n
d
st
a
y
wh
e
p
u
ts
A
o
r
B
t
r
a
n
s
i
t
i
o
n
t
h
e
Global
R
eset
s
i
g
al
w
i
ll
g
o
c
o
t
r
oll
e
r
lo
g
ic
.
T
h
e
Global
h
i
g
h
f
o
r
a
r
o
u
n
d
1
μ
s
.
V
CC
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