CAT9554 CATALYST [Catalyst Semiconductor], CAT9554 Datasheet - Page 5

• Manufacturer Part Number: CAT9554
• Description: 8-bit I2C and SMBus I/O Port with Interrupt
• Manufacturer: CATALYST [Catalyst Semiconductor]

AC TEST CONDITIONS
© 2006 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
n I
C
C
T
T
O
O
O
SDA OUT
T
T
M
M
p
u
u
u
L
L
t u
p t
p t
p t
SDA IN
O
O
n I
n I
t u
t u
t u
S
S
SCL
R
p
p
s i
n I
n I
R
L
L
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t u
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p
p
a
a
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V
R
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t u
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: d
l o
n
e
e r
t SU:STA
V
R
d
e f
a t
S
/ I
n
l o
e
O
F
e r
D
c
g
e f
a t
l a
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s
e
, A
n
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s
i t l
g
c
V
e
e
N I
n
l o
m
s
c
V
a t
T
e
e
l o
g
V
a t
e
t F
l o
s
g
a t
e
s
g
e
s
t HD:STA
t LOW
Figure 1. 2-Wire Serial Interface Timing
t AA
t HD:DAT
t HIGH
0
0
0
0
0
C
C
<
2 .
3 .
4 .
8 .
5 .
r u
r u
=
V
V
V
, V
V
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1
C
C
C
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t n
t n
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C
2
C
n
0 .
s
2
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t LOW
S
S
5
4 .
V
o
o
0
0
V
u
u
8 .
7 .
c
c r
e
t DH
V
V
e
C
C
I
I :
O
C
C
L
O
t SU:DAT
L
t R
=
I /
3
O
m
H
; A
=
1
C
0
L
m
=
; A
1
0
C
0
L
p
=
F
5
0
p
CAT9554, CAT9554A
F
t SU:STO
t BUF
Doc. No. 25088, Rev. B