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STDS75 Fiches technique(PDF) 31 Page - STMicroelectronics

No de pièce STDS75
Description  Digital temperature sensor and thermal watchdog
PDF  37 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STDS75 Fiches technique(HTML) 31 Page - STMicroelectronics

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STDS75
DC and AC parameters
31/37
Figure 16.
Bus timing requirements sequence
Table 14.
AC characteristics
Sym
Parameter(1)
1.
Valid for ambient operating temperature: TA = –55 to 125°C; VDD = 2.7V to 5.5V (except where noted).
Min
Max
Unit
fSCL
SCL clock frequency
0
400
kHz
tBUF
Time the bus must be free before a new transmission can start
1.3
µs
tF
SDA and SCL fall time
300
ns
tHD:DAT
(2)
2.
Transmitter must internally provide a hold time to bridge the undefined region (300ns max) of the falling
edge of SCL.
Data hold time
0
µs
tHD:STA
START condition hold time (after this period the first clock pulse is
generated)
600
ns
tHIGH
Clock high period
600
ns
tLOW
Clock low period
1.3
µs
tR
SDA and SCL rise time
300
ns
tSU:DAT
Data setup time
100
ns
tSU:STA
START condition setup time (only relevant for a repeated start
condition)
600
ns
tSU:STO
STOP condition setup time
600
ns
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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