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AIS25BA датащи(PDF) 8 Page - STMicroelectronics

номер детали AIS25BA
подробное описание детали  Ultralow noise, wide bandwidth, 3-axis accelerometer with TDM interface for automotive applications
PDF  31 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AIS25BA датащи(HTML) 8 Page - STMicroelectronics

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Figure 3. I²C slave timing diagram
SDA
SCL
tsu(SP)
tw(SCLL)
tsu(SDA)
tsu(SR)
th(ST)
tw(SCLH)
th(SDA)
tw(SP:SR)
START
REPEATED
START
STOP
START
Note:
Measurement points are done at 0.3·Vdd and 0.7·Vdd for both ports.
Table 8. I²C high-speed mode specifications at 1 MHz
Symbol
Parameter
Min
Max
Unit
Fast mode plus(1)
fSCL
SCL clock frequency
0
1
MHz
tHD;STA
Hold time (repeated) START condition
260
-
ns
tLOW
Low period of the SCL clock
500
-
tHIGH
High period of the SCL clock
260
-
tSU;STA
Setup time for a repeated start condition
260
-
tHD;DAT
Data hold time
0
-
tSU;DAT
Data setup time
50
-
trDA
Rise time of SDA signal
-
120
tfDA
Fall time of SDA signal
-
120
trCL
Rise time of SCL signal
20*Vdd/5.5
120
tfCL
Fall time of SCL signal
20*Vdd/5.5
120
tSU;STO
Setup time for stop condition
260
-
Cb
Capacitive load for each bus line
-
550
pF
tVD;DAT
Data valid time
-
450
ns
tVD;ACK
Data valid acknowledge time
-
450
VnL
Noise margin at low level
0.1Vdd
-
V
VnH
Noise margin at high level
0.2Vdd
-
tSP
Pulse width of spikes that must be suppressed by the input filter
0
50
ns
1. Data based on characterization, not tested in production
AIS25BA
I²C interface characteristics
DS14019 - Rev 1
page 8/31



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