SLB9670VQ20FW785XTMA1

Application Specific Microcontrollers Overview

The SLB9670VQ20FW785XTMA1 is an Infineon OPTIGA™ TPM 2.0 security controller in a PG-VQFN-32-13 package. It complies with TCG Family 2.0 specifications and holds FIPS 140-2 Level 2 certification (Certificate Number 3492). The device features an SPI interface supporting up to 43 MHz at 3.3V or 22.5 MHz at 1.8V. It provides 24 PCRs, minimum 6962 bytes of free NV memory, and supports ECC NIST P-256 and RSA 2048 cryptography. Operating voltage ranges from 1.65 V to 1.95 V or 3 V to 3.6 V, with a standard temperature range of -20 °C to +85 °C.

Application Specific Microcontrollers Feature Summary

• Compliant with TPM Main Specification Family 2.0 and validated for FIPS 140-2 Level 2.
• SPI interface with transfer rates up to 43 MHz and built-in Linux Kernel support.
• Optimized for battery-operated devices with typical standby power consumption of 110 µA.
• Supports full personalization including Endorsement Key (EK) and EK certificate.

Application Specific Microcontrollers Applications

• PC and mobile computing platforms (Intel x86, ARM).
• Embedded security for IoT devices and gateways.
• Trusted Computing applications requiring platform authentication.

Application Specific Microcontrollers Procurement Notes

Verify the ordering suffix XTMA1 corresponds to the PG-VQFN-32-13 package and standard temperature range (-20..+85°C). Confirm firmware version FW7.85 matches system requirements. Ensure supply voltage rails align with the specified 1.65–1.95 V or 3–3.6 V operational ranges.

Application Specific Microcontrollers Selection Notes

Select this part for standard temperature applications (-20..+85°C); use the XQ variant for enhanced ranges (-40..+85°C). Ensure host SPI signals are compatible with Schmitt-Trigger inputs. Verify that the host platform meets Intel TXT, Microsoft Windows, or Google Chromebook certification criteria if required for deployment.

Application Specific Microcontrollers Part Context

This component belongs to the OPTIGA™ TPM SLB 9670 family, which includes the SLB 9670VQ2.0 (standard temp) and SLB 9670XQ2.0 (enhanced temp). It is pin-compatible with the previous OPTIGA™ TPM SLB 9670 TPM 1.2 version, facilitating upgrades.

Application Specific Microcontrollers Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the source material. For direct pin-compatible replacement within the same family, consider the SLB9670VQ20FW786XTMA1 or other variants listed in the Bill of Material for evaluation boards.

Application Specific Microcontrollers FAQ

What is the maximum SPI clock frequency?

The maximum SCLK frequency is 43 MHz when VDD is typically 3.3V with a slew rate ≥ 1V/ns, or 22.5 MHz when VDD is typically 1.8V with a slew rate ≥ 1V/ns.

How does the device handle power management?

Power management is handled internally without explicit standby modes. The device automatically enters a low-power state after each successful command/response transaction and wakes immediately upon a new SPI bus transaction.

What cryptographic algorithms are supported?

The device supports symmetric cryptography including SHA-256, SHA-1, and HMAC. Asymmetric cryptography includes ECC NIST P-256, ECC256, ECDH, RSA1024, and RSA2048.