pt7a7521w Pericom Technology Inc, pt7a7521w Datasheet - Page 10

• Manufacturer Part Number: pt7a7521w
• Description: ?p Supervisor Circuits
• Manufacturer: Pericom Technology Inc

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DC Electrical Characteristics
* Valid for both RESET and RESET. V
voltage.
** WDI is internally serviced within the watchdog period if WDI is left unconnected.
PT0082L(03/06)
DC Electrical Characteristics
y S m
y S m
y S m
y S m
y S
V
V
V
V
V
I
I
I
I
W
P
M
C
R
R
P
O
O
I F
m
C
T
F
I D
S
R
H
L
H
T
T
O
p
A
R
r e
e v
R
s e
i t a
s e
a r
t e
O
O
P
n o
e g
t e
M
u
P
u
F
T
p t
p t
l a
F
I I
T
r h
R
W
D
D
D
D
D
I I
t u
t u
r h
o P
s e
p n
s e
s e
s e
s e
s e
I
D
p n
s e
p n
H
L
o h
t u
w
I I
r c
r c
r c
r c
r c
O
o h
G I
t u
t u
r e
d l
p i
p i
p i
p i
p i
T
p n
W
d l
H
C
C
r h
i t
i t
i t
i t
i t
u S
H
t u
u
u
n o
n o
n o
n o
n o
o V
o V
s e
o V
y
e r r
e r r
p p
C
e t s
o h
RST
a t l
a t l
a t l
u
t n
t n
y l
e r
e r r
d l
e g
e g
e g
is voltage threshold when Vcc falls from high to low. V
C
s i s
t n
u
*
* *
e r r
*
t n
P
V
V
V
V
V
V
L
7 T
V
V
V
C
c c
c c
c c
7 T
t f e
P
P
W
P
C
I F
I F
c c
P
c c
c c
W
P
A
7 T
F
A
v
>
>
1 >
v
v
D
W
F
M
D
7
r a
r a
r a
c I
>
e T
e T
e T
e T
e T
>
>
7
c I
c I
A
4
2
x 5
c I
I D
8 .
R
x 5
s e i
s e i
s e i
5 .
7 .
1
4
2
5 7
n o
10
T (
o
t s
t s
t s
t s
t s
P
P
P
P
n o
P
n o
/ 3
V
2 .
5 .
7 .
n o
=
/ 1
t u
T
V
V
7 T
7 T
7 T
7 T
7 T
n u
e b
A
e n
5 x
o r f
o r f
5 7
V
A
V
V
e n
C
C
C
C
C
e n
u p
5 7
, 0
e n
=
=
c -
t c
A
A
A
A
w t
n o
n o
n o
n o
n o
A
I
I
I
PT7A7511-7515/7521-7525/7531-7535
m
m
t c
4 x
t c
5 2
l t
o s
o s
o s
2 x
t c
i s I
V
i s I
i s I
5 2
d e
V
5 7
5 7
5 7
5 7
n o
5 7
1
1
d e
e
d e
i d
i d
i d
i d
i d
a o
d e
r u
r u
r u
C
o
C
n e
0 .
0 .
k n
k n
k n
C
o
C
V
e n
2 x
3 x
4 x
5 x
V
C
1 x
o i t
o i t
o i t
o i t
o i t
o t
) C
e c
e c
e c
) d
=
V
V
o t
o t
=
C
1 =
C
3 =
1 =
o t
t c
V
C
s n
s n
s n
s n
s n
C
8 =
5 =
1 =
G
5
o t
o t
3
G
d e
R
V
=
=
0 0
V
2 .
2 .
V
N
N
0 .
N
0 0
0 0
0 5
C
1
1
C
5
-
m
m
3
C
D
V
N (
C
D
5 .
5 .
V
3 .
5
A
A
A
%
V
V
o
A
A
A
V
V
V
0
0
R
4
4
3
2
2
-
M n i
M n i
M n i
M n i
M
C
1 -
6 -
N
8 .
8 .
. 1
. 1
5 .
3 .
. 2
0 .
8 .
5 .
1 -
C
1 -
V
V
3 2
0 2
0 0
0 0
n i
0 6
4 1
0 0
4 3
6 8
0 9
5 .
C
C
5 .
C
C
%
P Supervisor Circuits
4
4
3
2
2
RN
2 -
. 1
. 1
T p y
T p y
T p y
T p y
T
V
6 .
3 .
-
0 .
9 .
6 .
0 7
0 3
0 3
0 3
p y
R
5 2
5 2
0 5
is nominal reset threshold
0 3
0 8
0 8
0 3
0 3
N
V
Data Sheet
R
4
4
M x a
M x a
M x a
3
2
2
M x a
M
1 -
N
. 1
. 1
. 2
2
1
6 .
4 .
1 .
9 .
6 .
0
0
0
1 +
0 0
0 0
4 .
3 .
3 .
x a
7 2
0 3
0 0
0 0
9 9
6 4
6 2
4 7
9 6
5 .
%
U t i n
U t i n
U t i n
U t i n
U
m
V
V
V
V
V
t i n
A
A
A
V
Ver:4