24AA65 Datasheet, PDF (10/12 Pages) Microchip Technology – 64K 1.8V I 2 C O Smart Serial O EEPROM

24AA65
FIGURE 8-1: CONTROL SEQUENCE BIT ASSIGNMENTS
Control Byte
Address Byte 1
Address Byte 0
Configuration Byte
1
0
1
0
A
2
A
1
AR
0W
Slave Device
Address Select
Bits
S
0
0
A
12
AA
11 10
A
9
A
8
A
7
•
•
•
•
•
•
A
0
R
X
X
B
3
B
2
B
1
B
0
S/HE
Block
Count
Security Read
Acknowledge
No
S
t
a
r
Acknowledges from Device
from
ACK
Master
S
Data from Device
Data from Device
t
o
t
R
p
1
0
1
0
A
2
A
1
A
0
A
0C
K
1
X
X
XXX
X
X
A
C
K
X
XXX
X
X
X
X
A
C
K
1
1
X
X
X
X
X
X
A
C
K
1
1
1
1
BB
32
B
1
B
0
A
C
K
1
1
1
1
NN
32
NN
10
S/HE
Starting Block
Number
Number of
Blocks to
Protect
Security Write
S
t
a
Acknowledges from Device
S
t
r
o
t
R
p
1
0
1
0
A
2
A
1
A
0
A
0C
K
1
X
X
BBB
321
B
0
X
A
C
K
X
XXX
X
X
X
X
A
C
K
1
0
X
X
N
3
NNN
210
A
C
K
Starting Block
Number
S/HE
Number of
Blocks to
Protect
High Endurance Block Read
S
No
t
ACK S
a
Acknowledges from Device
t
r
Data from Device o
t
R
p
1
0
1
0
A
2
A
1
A
0
A
0C
K
1
X
X
XXX
X
X
A
C
K
X
XXX
X
X
X
X
A
C
K
0
1
X
X
X
X
X
X
A
C
K
1
1
1
1
BB
32
B
1
B
0
A
C
K
S/HE
High Endurance
Block Number
High Endurance Block Write
S
t
S
a
Acknowledges from Device
t
r
o
t
R
p
1
0
1
0
A
2
A
1
A
0
A
0C
K
1
X
X
BBB
321
B
0
X
A
C
K
X
XXX
X
X
X
X
A
C
K
0
0
X
X
0
0
0
0
A
C
K
High Endurance
Block Number
S/HE
DS21056F-page 10
© 1996 Microchip Technology Inc.