M24164-BN3 데이터 시트보기 (PDF) - STMicroelectronics

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M24164-BN3

16 Kbit Serial I2C BUS EEPROM

STMicroelectronics 

Figure 5. AC Waveforms

M24164

SCL

SDA IN

tCHCL

tCLCH

tDLCL

tDXCX

tCHDX

START

CONDITION

tCLDX

SDA

SDA

INPUT CHANGE

SCL

SDA OUT

tCLQV

DATA VALID

tCLQX

DATA OUTPUT

tCHDH

tDHDL

STOP &

BUS FREE

SCL

SDA IN

tCHDH

STOP

CONDITION

tW

WRITE CYCLE

tCHDX

START

CONDITION

AI00795B

Page Write. The Page Write mode allows up to 16

bytes to be written in a single write cycle, provided

that they are all located in the same ’row’ in the

memory: that is the most significant memory ad-

dress bits are the same. The master sends from

one up to 16 bytes of data, each of which is

acknowledged by the memory if the WC pin is low.

If the WC pin is high, each data byte is followed by

a NoACK and the location will not be modified. After

each byte is transferred, the internal byte address

counter (4 least significant bits only) is incre-

mented. The transfer is terminated by the master

generating a STOP condition. Care must be taken

to avoid address counter ’roll-over’ which could

result in data being overwritten. Note that, for any

byte or page write mode, the generation by the

master of the STOP condition starts the internal

memory program cycle. All inputs are disabled until

the completion of this cycle and the memory will not

respond to any request.

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