M41ST84YMH データシートの表示（PDF） - STMicroelectronics

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M41ST84YMH

5.0 or 3.0V, 512 bit (64 x 8) SERIAL RTC with SUPERVISORY FUNCTIONS

STMicroelectronics 

M41ST84Y, M41ST84W

Figure 9. Serial Bus Data Transfer Sequence

DATA LINE

STABLE

DATA VALID

CLOCK

DATA

START

CONDITION

CHANGE OF

DATA ALLOWED

Figure 10. Acknowledgement Sequence

START

SCLK FROM

MASTER

1

2

DATA OUTPUT

BY TRANSMITTER

MSB

DATA OUTPUT

BY RECEIVER

STOP

CONDITION

AI00587

CLOCK PULSE FOR

ACKNOWLEDGEMENT

8

9

LSB

AI00601

Figure 11. Bus Timing Requirements Sequence

SDA

tBUF

SCL

P

tHD:STA

tR

tF

tHIGH

S

tLOW

tHD:STA

tSU:DAT

tHD:DAT

tSU:STA

SR

tSU:STO

P

AI00589

10/31

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