UM2153 datasheet(24/57 Pages) STMICROELECTRONICS

24 / 57 page

Hardware layout and configuration

UM2153

24/57

DocID030118 Rev 3

The main features of the M24SR64-Y are:

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I2C interface (I2C2 of STM32L475VGT6). The two-wire I2C serial interface supports

1 MHz protocol.

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Contactless interface:

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NFC Forum Type 4 Tag

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ISO/IEC 14443 Type A

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106 Kbps data rate

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Internal tuning capacitance: 25 pF

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Memory:

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8-Kbyte (64-kbit) EEPROM

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Support of NDEF data structure

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Data retention: 200 years

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Write cycle endurance:

1 million Write cycles at 25 °C

600 K Write cycles at 85 °C

500 K Write cycles at 105 °C

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Read up to 246 Bytes in a single command

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Write up to 246 Bytes in a single command

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7-Byte unique identifier (UID)

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128-bit password protection

7.12

STMicroelectronics sensors

Several STMicroelectronics sensors are available on the STM32L4 Discovery kit for IoT

node board, they are listed below:

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2 on-board ST-MEMS audio sensor omnidirectional digital microphones (MP34DT01)

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Capacitive digital sensor for relative humidity and temperature (HTS221)

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High-performance 3-axis magnetometer (LIS3MDL)

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3D accelerometer and 3D gyroscope (LSM6DSL)

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260-1260 hPa absolute digital output barometer (LPS22HB)

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Time-of-Flight and gesture detection sensor (VL53L0X)

7.12.1

Two on-board ST-MEMS microphones (MP34DT01)

The MP34DT01 is an ultra-compact, low-power, omnidirectional, digital ST-MEMS

microphone built with a capacitive sensing element and an IC interface.

The sensing element, capable of detecting acoustic waves, is manufactured using a

specialized silicon micromachining process dedicated to produce audio sensors.

The IC interface is manufactured using a CMOS process that allows designing a dedicated

circuit able to provide a digital signal externally in PDM format.

The MP34DT01 has an acoustic overload point of 120 dBSPL with a 63 dB signal-to-noise

ratio and –26 dBFS sensitivity.

UM2153 Datasheet(PDF) 24 Page - STMicroelectronics

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