LSM303AGR Datasheet, PDF (16/68 Pages) STMicroelectronics – ultra-low-power 3D accelerometer and 3D magnetometer

Module specifications
LSM303AGR
2.4
Communication interface characteristics
2.4.1
SPI - serial peripheral interface
Subject to general operating conditions for Vdd and Top.
Symbol
Table 6. SPI slave timing values
Parameter
Value ⁽¹⁾
Min
Max
t_c(SPC)
SPI clock cycle
f_c(SPC)
SPI clock frequency
t_{su(CS_XL, CS_MAG)} CS setup time
t_{h(CS_XL, CS_MAG)} CS hold time
t_su(SI)
SDI input setup time
t_h(SI)
SDI input hold time
t_v(SO)
SDO valid output time
t_h(SO)
SDO output hold time
t_dis(SO)
SDO output disable time
100
10
5
20
5
15
50
5
50
Figure 3. SPI slave timing diagram
Unit
ns
MHz
ns
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6',
6'2
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WK6,
06%,1
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06%287
W_K62
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/6%,1
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Note:
Values are guaranteed at 10 MHz clock frequency for SPI with 3 wires, based on
characterization results, not tested in production.
Measurement points are done at 0.2·Vdd_IO and 0.8·Vdd_IO, for both input and output
ports.
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