SLx 24C01/02/P

Semiconductor Group

17

1998-07-27

6.3

Sequential Read

A sequential read is initiated in the same way as a current read or a random read except

that the master acknowledges the data byte transmitted by the EEPROM. The EEPROM

then continues the data transmission. The internal address counter is incremented by

one during each data byte transmission.

A sequential read allows the entire memory to be read during one read operation. In the

SLx 24C02/P, after the highest addressable memory location is reached, the internal

address pointer “rolls over” to the address 0 and the sequential read continues. In the

SLx 24C01/P, there is no “roll over”.

The transmission is terminated by the master by releasing the SDA line (no

acknowledge) and generating a STOP condition (see figure 13).

Figure 13

Sequential Read

Data Byte n

EEPROM

Bus Activity

SDA Line

Master

Bus Activity

S

R

T

A

T

S

CSW

Command Byte

1

C

K

A

C

K

A

Data Byte n+x

Data Byte n+1

A

K

C

C

K

A

P

IED02134

S

O

P

T