24AA65-SM datasheet(10/12 Pages) MICROCHIP

Part #	24AA65-SM

Description	64K 1.8V I 2 C O Smart Serial O EEPROM

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Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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10 / 12 page

24AA65

DS21056F-page 10

FIGURE 8-1:

CONTROL SEQUENCE BIT ASSIGNMENTS

A

1

Control Byte

A

2

A

0

R

W

0

1

0

1

A

10

Address Byte 1

A

11

A

9

A

8

0

S

A

7

A

0

•

Address Byte 0

Slave

Address

Device

Select

Bits

•

A

12

B

2

Configuration Byte

B

3

B

1

B

0

X

R

X

Block

Count

S/HE

A

1

A

2

A

0

1

0

1

X

XX X

X

1

X

Starting Block

Number

S

t

a

r

t

0

X

XX X

X

A

C

K

X

XX X

X

1

X

A

C

K

B

2

B

3

B

1

B

0

1

N

2

N

3

N

1

N

0

1

Number of

Blocks to

Protect

S

t

o

p

A

C

K

No

ACK

Data from Device

Acknowledge

from

Master

Data from Device

Acknowledges from Device

A

1

A

2

A

0

1

0

1

B

1

B

2

B

0

X

1

B

3

S

t

a

r

t

0

X

XX X

X

N

2

N

3

N

1

N

0

X

0

1

X

A

C

K

S

t

o

p

Acknowledges from Device

A

1

A

2

A

0

A

C

K

0

1

0

1

X

XX X

X

1

X

High Endurance

Block Number

S

t

a

r

t

0

X

XX X

X

A

C

K

X

XX X

X

1

0

X

A

C

K

B

2

B

3

B

1

B

0

1

S

t

o

p

A

C

K

A

C

K

No

ACK

Data from Device

Acknowledges from Device

A

1

A

2

A

0

A

C

K

0

1

0

1

B

1

B

2

B

0

X

1

B

3

S

t

a

r

t

0

X

XX X

X

A

C

K

0

00 0

X

0

X

A

C

K

S

t

o

p

A

C

K

Acknowledges from Device

Starting Block

Number

Number of

Blocks to

Protect

R

S/HE

R

S/HE

R

S/HE

R

S/HE

Security Read

Security Write

High Endurance Block Read

High Endurance Block Write

A

C

K

A

C

K

A

C

K

A

C

K

A

C

K

High Endurance

Block Number

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