SEQUENTIAL READ OPERATION

Sequential read operations can be performed in two ways: as a series of current address reads or as random

address reads. The first data is sent in the same way as the previous read mode used on the bus. The next time,

however, the master responds with an ACK, indicating that it requires additional data.

The 24LLC02 continues to output data for each ACK it receives. To stop the sequential read operation,the

master does not respond with an ACK, but instead issues a Stop condition.

Using this method, data is output sequentially with the data from address “n” followed by the data from “n+1”. The

word address pointer for read operations increments all word addresses, allowing the entire EEPROM to be read

sequentially in a single operation. After the entire EEPROM is read, the word address pointer “rolls over” and the

24LLC02 continues to transmit data for each ACK it receives from the master (see Figure 1-14).

Slave Address

Data (n)

Start

A

C

K

A

C

K

N

O

A

C

K

Data (n + x)

A

C

K

Figure 1-14. Sequential Read Operation

* All specs and applications shown above subject to change without prior notice.

1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN, R.O.C

Email: server@ceramate.com.tw

Tel:886-3-3529445

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Rev 1.2 May 6,2002

24LLC02

2K-bit Serial EEPROM for Low Power