M41ST84W View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

M41ST84W

3.0/3.3 V I2C serial RTC with 44 bytes of NVRAM and supervisory functions

STMicroelectronics 

Operating modes

Figure 5. Serial bus data transfer sequence

DATA LINE

STABLE

DATA VALID

CLOCK

M41ST84W

DATA

START

CONDITION

CHANGE OF

DATA ALLOWED

Figure 6. Acknowledgement sequence

STOP

CONDITION

AI00587

START

SCLK FROM

MASTER

1

2

DATA OUTPUT

BY TRANSMITTER

MSB

DATA OUTPUT

BY RECEIVER

CLOCK PULSE FOR

ACKNOWLEDGEMENT

8

9

LSB

AI00601

12/34

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