AT24C02A/04A/08A

8

with an acknowledge. As long as the EEPROM receives an

acknowledge, it will continue to increment the data word

address and serially clock out sequential data words. When

the memory address limit is reached, the data word

address will “roll over” and the sequential read will con-

tinue. The sequential read operation is terminated when

the microcontroller does not respond with a zero but does

generate a following stop condition (refer to Figure 6).

Figure 1. Device Address

Figure 2. Byte Write

Figure 3. Page write

MSD

2K

LSB

1

R/W

4K

1

P0

R/W

0

0

0

0

0

0

1

1

1

8K

1

P0

P

1

R/W

S

T

A

R

T

M

S

B

M

S

B

L

S

B

S

T

O

P

W

R

I

T

E

SDA LINE

DEVICE

ADDRESS

WORD ADDRESS

DATA

L

S

B

A

C

K

A

C

K

A

C

K

R

/

W

S

T

A

R

T

M

S

B

S

T

O

P

W

R

I

T

E

SDA LINE

DEVICE

ADDRESS

WORD ADDRESS (n)

DATA (n)

DATA (n + 1)

DATA (n + x)

L

S

B

A

C

K

A

C

K

A

C

K

A

C

K

A

C

K

R

/

W