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ST33TPHF2XI2C датащи(PDF) 11 Page - STMicroelectronics

номер детали ST33TPHF2XI2C
подробное описание детали  STSAFE-TPM ST33TPHF2XI2C: TPM 2.0 device with an I²C interface
PDF  30 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
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ST33TPHF2XI2C датащи(HTML) 11 Page - STMicroelectronics

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4.5
I²C characteristics
Table 8. I²C characteristics
Symbol
Parameter
Min.
Max.
Unit
fSCL
SCL clock frequency
10
400
kHz
tLOW
Low period of the SCL clock
1.3
-
µs
tHIGH
High period of the SCL clock
0.6
-
µs
tSU;STA
Setup time for a repeated Start condition
0.6
-
µs
tr
Rise time of the SDA or SCL signal
20
300
ns
tf
Fall time of the SDA or SCL signal (VPS = 3.3 V)
12
300
ns
Fall time of SCL (VPS = 1.8 V)
6
300
tVD;DAT
Data valid time
-
0.9
µs
tVD;ACK
Data valid acknowledge time
-
0.9
µs
tSU;STO
Setup time for a Stop condition
0.6
-
µs
tSU;DAT
Data setup time
100
-
ns
tHD;DATA
Data hold time
0
-
ns
tHD;STA
Hold time for a (repeated) Start condition
0.6
-
µs
tStart
tHD;STA + tLOW
1.9
-
µs
Figure 4. I²C bus protocol
MSB
ACK
SDA
Start
condition
Stop
condition
SCL
1
2
8
9
Figure 5. Typical application with I²C bus and timing diagram
tLOW
tSU;DAT
SDA
SCL
tBUF
tf
Start
condition
Repeated Start
condition
Stop
condition
Start
condition
tStart
tf
tr
tHD;STA
tHD;STA
tSU;STA
tSU;STO
tr
tHIGH
tHD;DATA
ST33TPHF2XI2C
I²C characteristics
DS14167 - Rev 1
page 11/30



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