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STMicroelectronics SC-KTPM-RASPIKG9

Name: SC-KTPM-RASPIKG9
Brand: STMicroelectronics
SKU: SC-KTPM-RASPIKG9
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SC-KTPM-RASPIKG9

Manufacturer:: STMicroelectronics

Category:: Expansion Boards, Daughter Cards

Package:

Datasheet:: SC-KTPM-RASPIKG9.pdf

Description:: TPM EVALUATION BOARD FOR ST33KTP

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:4,616

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Product details

Overview

SC-KTPM-RASPIKG9 from STMicroelectronics is an evaluation board designed to interface STSAFE-TPM ST33KTPM2X trusted platform modules (TPM 2.0 compliant, firmware v9.257) with Raspberry Pi® (3/4/5) and STM32MPx-DK development kits via configurable I²C or SPI. It features a dedicated TPM reset button, on-board I²C/SPI interface selection (jumper or slide switch), SPI chip select configuration (CS0/CS1), and PCB signal labeling for logic analyzer probing.

For engineers reviewing the SC-KTPM-RASPIKG9 datasheet, SC-KTPM-RASPIKG9 pinout, SC-KTPM-RASPIKG9 application, or SC-KTPM-RASPIKG9 equivalent, this board enables rapid TPM integration validation, Linux® kernel driver testing (TCG-TPM-I2C-DRV), firmware upgrade verification (LMS-signed), and physical presence (PP) and interrupt (PIRQ) signal evaluation in embedded security use cases.

Technical Context

The SC-KTPM-RASPIKG9 implements a hardware abstraction layer between Raspberry Pi GPIO headers (40-pin) and ST33KTPM2X QFN32 TPM devices, supporting both I²C (SDA/SCL on GPIO3/GPIO5) and SPI (MOSI/MISO/SCLK/CS0 on GPIO10–GPIO8) protocols with pin-level signal routing. It provides direct access to critical TPM control signals including RST (active-low reset), PP (physical presence), and PIRQ (interrupt request).

Power delivery is fixed at 3.3 V (VPS), with optional current measurement via solderable 10 Ω resistor (R4) at P1 header. Interface selection is implemented through GPI_I2C_SELECT (GPIO15), pulled high for SPI or low for I²C - configurable via jumper or optional slide switch - ensuring exclusive bus mode operation per TCG TPM 2.0 specification.

Key Specifications

Parameter	Value and Actual Design Meaning
Target Device	ST33KTPM2X32DKG9 TPM module (TCG TPM 2.0 spec 1.59, firmware v9.257)
Host Interfaces	I²C (GPIO3/SDA, GPIO5/SCL) or SPI (GPIO10/MOSI, GPIO9/MISO, GPIO11/SCLK, GPIO8/CS0) - mutually exclusive via GPI_I2C_SELECT
Reset Control	Dedicated mechanical push-button driving active-low RST signal to TPM without host reboot
Physical Presence	Exposed PP (GPIO4) signal with internal pull-down, compliant with TPM 2.0 physical presence requirements
SPI Chip Select	Configurable CS0 (default, SB2 soldered) or CS1 (SB1 soldered + SB2 removed) for multi-slave support
Signal Accessibility	All critical signals (RST, PP, PIRQ, SDA, SCL, MOSI, MISO, SCLK, CS0/CS1) marked on PCB for oscilloscope/logic analyzer probing

Availability

SC-KTPM-RASPIKG9 is available at Aetrix Electronics and suitable for Raspberry Pi®-based secure boot validation, STM32MP157F-DK2 Linux® TPM driver integration, and ST33KTPM2X firmware upgrade testing requiring stable component supply and traceable sourcing.

Supply support for SC-KTPM-RASPIKG9 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in microcontrollers, power management, sensors, and secure authentication solutions for industrial, automotive, and IoT applications.

This board belongs to ST's STPM4RasPIV21 evaluation platform family, engineered specifically to accelerate adoption of STSAFE-TPM devices in Linux-based embedded systems requiring hardware-rooted trust, secure key storage, and remote attestation capabilities.

FAQ

Does SC-KTPM-RASPIKG9 support both Raspberry Pi and STM32MPx-DK platforms?

Yes. The board connects directly to the 40-pin GPIO header of Raspberry Pi® 3/4/5 and is mechanically and electrically compatible with STM32MP135F-DK and STM32MP157F-DK2 Discovery kits via their Raspberry Pi® shield expansion connectors. Signal mapping and voltage levels (3.3 V) are fully aligned across all supported hosts.

How is the I²C/SPI interface selected on SC-KTPM-RASPIKG9?

Interface selection is controlled by the GPI_I2C_SELECT signal (Raspberry Pi GPIO15): pulled low (to GND) for I²C mode, pulled high (to VPS) for SPI mode. This is implemented using either a 2-pin jumper (J1 pins 15–16) or an optional slide switch (soldered at bottom side). No software configuration is required - it is a hardware-level bus selection.

What Linux® kernel versions support TPM activation with this board?

SC-KTPM-RASPIKG9 supports Linux® TPM drivers starting from kernel 5.4 (TCG-TPM-I2C-DRV 5.4) through 6.1+ (mainline). X-LINUX-TPM Yocto layer provides full integration support for both I²C and SPI modes on STM32MP1xx platforms, enabling TPM2_Startup, TPM2_SelfTest, and attestation workflows out-of-the-box.

Is the ST33KTPM2X device pre-soldered on SC-KTPM-RASPIKG9?

Yes. Each SC-KTPM-RASPIKG9 unit ships with one ST33KTPM2X32DKG9 TPM module pre-soldered in QFN32 package. The module implements TCG TPM 2.0 specification 1.59, includes firmware version 9.257, and supports both I²C and SPI interfaces - validated and tested prior to shipment.

SC-KTPM-RASPIKG9 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Packaging:: Bulk

Product Status:: Active

Platform:: Raspberry Pi

Type:: Interface

Function:: Trusted Platform Module (TPM)

Utilized IC / Part:: ST33KTPM

Contents:: Board(s)

SC-KTPM-RASPIKG9 FAQ

1.How can I place an order for SC-KTPM-RASPIKG9 through Aetrix?

Please submit a Request for Quotation (RFQ) for SC-KTPM-RASPIKG9 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for SC-KTPM-RASPIKG9 reliable?

The price and inventory of SC-KTPM-RASPIKG9 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SC-KTPM-RASPIKG9 is usually 5 days.

3.What payment methods are accepted for SC-KTPM-RASPIKG9?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SC-KTPM-RASPIKG9 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SC-KTPM-RASPIKG9?

SC-KTPM-RASPIKG9 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SC-KTPM-RASPIKG9 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for SC-KTPM-RASPIKG9?

For technical support, including SC-KTPM-RASPIKG9 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SC-KTPM-RASPIKG9 requirements.

6.How does Aetrix verify that SC-KTPM-RASPIKG9 is sourced from the original manufacturer or authorized distributors?

All SC-KTPM-RASPIKG9 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SC-KTPM-RASPIKG9 meets industry standards.

7.What is the process for return or replacement of SC-KTPM-RASPIKG9?

All SC-KTPM-RASPIKG9 units undergo pre-shipment inspection (PSI). If there is an issue with SC-KTPM-RASPIKG9, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The SC-KTPM-RASPIKG9 part is unused and in its original packaging.

Return procedure for SC-KTPM-RASPIKG9:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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