LIS2DS12 datasheet(21/68 Pages) STMICROELECTRONICS

部件名	LIS2DS12

功能描述	ultra-low-power high-performance 3-axis "pico" accelerometer

PDF	68 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

21 / 68 page

DocID027753 Rev 4

21/68

LIS2DS12

Application hints

The device core is supplied through the Vdd line while the I/O pads are supplied through the

Vdd_IO line. Power supply decoupling capacitors (100 nF ceramic, 10 μF aluminum) should

be placed as near as possible to pin 9 of the device (common design practice).

All the voltage and ground supplies must be present at the same time to have proper

behavior of the IC (refer to Figure 5 and Figure 6). It is possible to remove Vdd while

maintaining Vdd_IO without blocking the communication bus, in this condition the

measurement chain is powered off.

The functionality of the device and the measured acceleration data are selectable and

accessible through the I2C or SPI interfaces. When using the I2C, CS must be tied high (i.e.

connected to Vdd_IO).

The functions, the threshold and the timing of the two interrupt pins (INT1 and INT2) can be

completely programmed by the user through the I2C/SPI interface.

LIS2DS12 数据表(PDF) 21 Page - STMicroelectronics