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M41ST87W Fiches technique(PDF) 14 Page - STMicroelectronics

No de pièce M41ST87W
Description  5.0 V and 3.3/3.0 V secure serial RTC and NVRAM supervisor with tamper detection and 128 bytes of clearable NVRAM
PDF  54 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M41ST87W Fiches technique(HTML) 14 Page - STMicroelectronics

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Operating modes
M41ST87Y, M41ST87W
14/54
Doc ID 9497 Rev 10
case the transmitter must leave the data line high to enable the master to generate the
STOP condition.
Figure 6.
Serial bus data transfer sequence
Figure 7.
Acknowledgement sequence
Figure 8.
Bus timing requirements sequence
AI00587
DATA
CLOCK
DATA LINE
STABLE
DATA VALID
START
CONDITION
CHANGE OF
DATA ALLOWED
STOP
CONDITION
AI00601
DATA OUTPUT
BY RECEIVER
DATA OUTPUT
BY TRANSMITTER
SCL FROM
MASTER
START
CLOCK PULSE FOR
ACKNOWLEDGEMENT
12
89
MSB
LSB
AI00589
SDA
P
tSU:STO
tSU:STA
tHD:STA
SR
SCL
tSU:DAT
tF
tHD:DAT
tR
tHIGH
tLOW
tHD:STA
tBUF
S
P



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