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AIS2IH Datasheet(PDF) 9 Page - STMicroelectronics

Part # AIS2IH
Description  MEMS digital output motion sensor: high-performance 3-axis accelerometer for automobile applications
PDF  63 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AIS2IH Datasheet(HTML) 9 Page - STMicroelectronics

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2.4
Communication interface characteristics
2.4.1
SPI - serial peripheral interface
Subject to general operating conditions for Vdd and Top.
Table 6. SPI slave timing values
Symbol
Parameter
Value (1)
Unit
Min
Max
tc(SPC)
SPI clock cycle
100
ns
fc(SPC)
SPI clock frequency
10
MHz
tsu(CS)
CS setup time
6
ns
th(CS)
CS hold time
8
tsu(SI)
SDI input setup time
12
th(SI)
SDI input hold time
15
tv(SO)
SDO valid output time
50
th(SO)
SDO output hold time
9
tdis(SO)
SDO output disable time
50
1. 10 MHz clock frequency for SPI with both 4 and 3 wires, based on characterization results, not tested in production.
Figure 3. SPI slave timing diagram
SPC
CS
SDI
SDO
tsu(CS)
tv(SO)
th(SO)
th(SI)
tsu(SI)
th(CS)
tdis(SO)
tc(SPC)
MSB IN
MSB OUT
LSB OUT
LSB IN
Note: Measurement points are done at 0.3·Vdd_IO and 0.7·Vdd_IO for both input and output ports.
AIS2IH
Communication interface characteristics
DS12421 - Rev 4
page 9/63



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