M24256-BF 데이터 시트보기 (PDF) - STMicroelectronics

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M24256-BF

256-Kbit serial I²C bus EEPROM

STMicroelectronics 

Instructions

M24256-BW M24256-BR M24256-BF M24256-DR M24256-DF

5.1.2

Page Write

The Page Write mode allows up to 64 byte to be written in a single Write cycle, provided that

they are all located in the same page in the memory: that is, the most significant memory

address bits, A15/A6, are the same. If more bytes are sent than will fit up to the end of the

page, a “roll-over” occurs, i.e. the bytes exceeding the page end are written on the same

page, from location 0.

The bus master sends from 1 to 64 byte of data, each of which is acknowledged by the

device if Write Control (WC) is low. If Write Control (WC) is high, the contents of the

addressed memory location are not modified, and each data byte is followed by a NoAck, as

shown in Figure 8. After each transferred byte, the internal page address counter is

incremented.

The transfer is terminated by the bus master generating a Stop condition.

Figure 8. Write mode sequences with WC = 1 (data write inhibited)

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DS1766 Rev 34

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