IS24C32A
IS24C64A/B
Figure 4. Data Validity Protocol
ISSI
Data Change
®
SCL
Data Stable
Data Stable
SDA
Figure 5. Slave Address
BIT
7
6
5
4
3
2
1
0
1
0
1
0
A2
A1
A0
R/W
Figure 6. Byte Write
S
T
A
R
T
W
R
I
T
E
S
T
O
P
A
C
K
Device
Address
Word Address
A
C
K
Word Address
A
C
K
Data
SDA
Bus
Activity
M
S
B
A
C * * * #
K
L
M
S
S
B
B
R/W
* = Don't care bits
# = Don't care bit for 24C32A
Figure 7. Page Write
S
T
A
R
T
W
R
I
T
E
S
T
O
P
A
C
K
Device
Address
Word Address (n)
A
C * * * #
K
A
C
K
Word Address (n)
A
C
K
Data (n)
A
C
K
Data (n+1)
A
C
K
Data (n+31)
SDA
Bus
Activity
M
S
B
L
S
B
R/W
* = Don't care bits
# = Don't care bit for 24C32A
Integrated Silicon Solution, Inc. — 1-800-379-4774
ADVANCED INFORMATION Rev. 00A
01/26/04
7