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The following are the key characteristics of the TPM-Click module:
On-board Module | ST33KTPM2X, ST’ STSAFE-TPM trusted platform module 2.0 |
Host interface | I2C (default), SPI |
Compatibility | mikroBUS™ |
Click Board Size | S (28.6 x 25.4mm) |
Input Voltage | 3.3V |
Electrical Specification
The following is the electrical specification of the TPM-Click module:
Description | Min | Type | Max | Unit |
Supply Voltage | 3.0 | 3.3 | 3.6 | V |
I2C Interface Speed | 0 | - | 1000 | kHz |
SPI Interface Speed | - | - | 66 | MHz |
Operation Temperature Range | -40 | 25 | 105 | °C |
Current Consumption @ Run | - | 17.5 | - | mA |
Current Consumption @ Standby | - | 30 | - | µA |
Pin-out
The following table shows how the pin-out on the TPM-Click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).
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The following are the user-selectable on-board settings of the TPM-Click module:
Label | Name | State | Description |
SPI SEL | JP1 | Open (Default) | I2C interface is selected |
Closed | SPI is selected. R3-R6 and C1 must be installed to provide SPI connectivity. |
References
DB5174 STSAFE-TPM trusted platform module 2.0 with a SPI or I²C interface https://www.st.com/resource/en/data_brief/st33ktpm2x.pdf
https://www.st.com/en/secure-mcus/st33ktpm2x.html#documentation