Datasheet

Data Sheet
BMA456
Page 16
BST-BMA456-DS000-01 | Version 1.1 | October 2017 Bosch Sensortec
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Note: Specifications within this document are subject to change without notice.
4.1. Supply Voltage and Power Management
BMA456 has two distinct power supply pins:
 VDD is the main power supply.
 VDDIO is a separate power supply pin used for supplying power for the interface including the
auxiliary interface.
There are no limitations with respect to the voltage level applied to the VDD and VDDIO pins, as long
as it lies within the respective operating range. Furthermore, the device can be completely switched
off (VDD= 0V) while keeping the VDDIO supply within operating range or vice versa. However if the
VDDIO supply is switched off, all interface pins (CSB, SDX, SCX) must be kept close to GNDIO
potential. The device is reset when the supply voltage applied to at least one supply pin VDD or VDDIO
falls below the specified minimum values. No constraints exist for the minimum slew-rate of the voltage
applied to the VDD and VDDIO pins.