Figure 10. STEV
AL-STWINBX1 - sensors on the bottom side
• U3: ILPS22QS MEMS pressure sensor
•
U6: STTS22H digital temperature sensor
• U8: TSV912 wide-bandwidth (8 MHz) rail-to-rail I/O op-amp
• U9: ISM330DHCX iNEMO IMU, 3D accelerometer and 3D gyroscope with Machine Learning Core and
Finite State Machine
• U11: IIS3DWB wide bandwidth accelerometer
• U12: IIS2DLPC high-performance ultra-low-power 3-axis accelerometer for industrial applications
• U13: IIS2MDC 3-axis magnetometer
• U21: IIS2ICLX high-accuracy, high-resolution, low-power, 2-axis digital inclinometer with Machine Learning
Core
• M1: IMP23ABSU analog MEMS microphone
• M2: IMP34DT05 digital MEMS microphone
1.6.1.1 ILPS22QS
The ILPS22QS is an ultra-compact piezoresistive absolute pressure sensor
, which functions as a digital output
barometer. It supports dual full-scale up to 4 bar, selectable by the user.
The ILPS22QS embeds a sensing element and an IC interface that communicates over I²C, MIPI I3C
SM
or SPI
interfaces from the sensing element to the application. It also supports a 1.2 V digital interface.
The ILPS22QS features an analog hub-sensing functionality, which is able to connect an analog input and convert
it to a digital signal for embedded processing.
The ILPS22QS is available in a full-mold, holed LGA package. It is guaranteed to operate over a temperature
range extending from -40°C to +105°C. The package is holed to allow the external pressure to reach the sensing
element.
Table 1. ILPS22QS I/O configuration
I/O Configuration
PH4 I2C2_SCL
PF0 I2C2_SDA
1.6.1.2 STTS22H
The STTS22H is an ultra-low-power
, high-accuracy, digital temperature sensor. It offers a high performance over
the entire operating temperature range.
The STTS22H is coupled with an ASIC featuring A/D converter, signal processing logic, and an I²C/SMBus 3.0
interface.
UM2965
Functional blocks
UM2965 - Rev 1
page 7/58
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