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Microchip Technology AT97SC3204-X2M6-00
- Part No.:
- AT97SC3204-X2M6-00
- Manufacturer:
- Microchip Technology
- Category:
- Application Specific Microcontrollers
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
AT97SC3204-X2M6-00.pdf
- Description:
- IC CRYPTO TPM LPC 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:961
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Product details
Overview
AT97SC3204-X2M6-00 from Atmel is a Trusted Platform Module (TPM) IC compliant with TCG TPM 1.2 and PC Client TIS 1.2 specifications, featuring an AVR RISC microprocessor, hardware RSA crypto engine (2048-bit signature in 200ms), FIPS 140-2–compliant RNG, and 1756-byte NV user storage. It operates at 3.3V and interfaces via 33MHz LPC bus for secure boot and platform authentication in PCs and embedded systems.
For engineers reviewing the AT97SC3204-X2M6-00 datasheet, AT97SC3204-X2M6-00 pinout, AT97SC3204-X2M6-00 application, or AT97SC3204-X2M6-00 equivalent, key selection criteria include LPC interface timing compliance, industrial temperature support (−40°C to +85°C), 40-pin QFN package footprint, secure key storage architecture, and TCG 1.2 firmware integration readiness.
Technical Context
The AT97SC3204-X2M6-00 implements a full TCG TPM 1.2 stack in silicon, integrating an AVR 8-bit RISC CPU, dedicated cryptographic accelerator for RSA and SHA-1 (20 μs/64-byte block), and internal EEPROM for persistent RSA key storage. Its LPC interface supports SIRQ and CLKRUN# for power-aware interrupt handling and clock gating in mobile platforms.
Security is enforced through physical tamper resistance, dynamic internal memory management for key caching (no host intervention required for TPM_FlushSpecific/TPM_LoadKey2), and a hardware RNG certified to FIPS 140-2. The device uses dual supply rails (VCC and SB3V) and supports both commercial and industrial temperature grades.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| TCG Compliance | Fully compliant with TPM 1.2 and PC Client TIS 1.2 - ensures interoperability with BIOS, OS drivers, and TCG-compliant software stacks. |
| RSA Performance | 2048-bit RSA signature in ≤200ms - enables secure boot attestation within real-time platform initialization windows. |
| LPC Interface | 33MHz Low Pin Count bus with LAD[3:0], LFRAME#, LCLK, SERIRQ, CLKRUN# - matches standard PC chipset LPC timing requirements. |
| Secure Storage | 1756 bytes of NV user-defined data space + internal EEPROM for RSA keys - provides persistent, authenticated storage without external flash. |
| Operating Temp | −40°C to +85°C industrial grade - qualified for deployment in ruggedized embedded and industrial control systems. |
| Supply Voltage | 3.3V main supply (VCC) + standby 3.3V rail (SB3V) - supports low-power suspend/resume states per LPC power management spec. |
| RNG Certification | FIPS 140-2–compliant hardware random number generator - satisfies cryptographic entropy requirements for key generation and protocol randomness. |
Pinout & Package
AT97SC3204-X2M6-00 is packaged in a 40-pad QFN (6.0 mm × 6.0 mm, 0.50 mm pitch, VQFN type 40ML1), RoHS-compliant and lead-free. Pin functions are defined per TCG LPC interface specification and validated for direct integration into PC motherboard designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Main 3.3V Power Supply | Primary power rail for core logic and crypto engine; requires local decoupling per LPC design guidelines. |
| SB3V | Standby 3.3V Supply | Independent rail sustaining RTC, RNG, and NV state during system suspend; isolated from VCC switching noise. |
| LAD0–LAD3 | LPC Data/Address/Command Lines | Time-multiplexed bidirectional bus supporting TIS-compliant command framing and burst transfers. |
| LFRAME# | LPC Frame Strobe | Active-low signal indicating start/end of LPC transaction cycle; synchronized to LCLK edge. |
| LCLK | 33MHz LPC Clock Input | System-sourced clock; defines maximum transaction rate and timing margins for all LPC signaling. |
| SERIRQ | Serialized Interrupt Request | Open-drain shared interrupt line compatible with Intel PIIX4 and later LPC host controllers. |
| CLKRUN# | PCI Clock Run Control | Enables dynamic clock gating for power savings; asserted by host to request TPM clock enable/disable. |
| LPCPD# | LPC Power-Down Input | Asserted by host to place TPM in low-power retention mode while preserving NV state. |
| GPIO-Express-00 | Configurable General-Purpose I/O | Programmable as input/output per TCG GPIO extension; supports platform-specific security signaling. |
| LRESET# | LPC Reset Input | Asynchronous active-low reset aligned with LPC bus reset protocol; initiates firmware reinitialization. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Asymmetric Crypto Engine | Offloads RSA-2048 signing and SHA-1 hashing from host CPU, reducing boot latency and eliminating software-side side-channel exposure. |
| Integrated AVR RISC Microcontroller | Runs certified TCG-compliant firmware stack on-chip; eliminates need for external processor or firmware hosting. |
| FIPS 140-2–Compliant RNG | Provides cryptographically secure entropy directly to key generation and protocol functions-no host seeding or post-processing required. |
| Turnkey TPM Firmware | Firmware pre-integrated and factory-locked; includes BIOS-compatible driver support and manufacturing initialization tools for OEMs. |
| Dual-Voltage Power Architecture | VCC/SB3V separation enables independent power domain control-critical for maintaining secure state across sleep/wake transitions. |
Applications
| Secure Boot Authentication | Platform Integrity Verification |
|---|---|
|
Use Scenario: Verifying firmware image integrity before UEFI execution in enterprise laptops and servers. IC Role / Device Role / Timing Role: TPM acts as root-of-trust anchor, measuring and extending PCR registers during POST and boot loader handoff. Use Value: Prevents unauthorized firmware modification by binding cryptographic measurements to hardware-protected keys stored in AT97SC3204-X2M6-00 EEPROM. |
Use Scenario: Detecting runtime tampering in industrial HMIs running Windows IoT or Linux-based SCADA agents. IC Role / Device Role / Timing Role: Provides sealed storage and remote attestation capability via LPC-hosted TCG commands. Use Value: Enables verified reporting of system configuration state using AT97SC3204-X2M6-00's FIPS RNG and hardware-signed quotes. |
| Hardware-Bound Key Protection | Embedded Device Identity Provisioning |
|
Use Scenario: Securing disk encryption keys in thin clients where BitLocker or LUKS relies on TPM-bound secrets. IC Role / Device Role / Timing Role: Stores and releases decryption keys only after successful platform measurement validation. Use Value: Ensures encrypted data remains inaccessible if AT97SC3204-X2M6-00 is removed or firmware is corrupted. |
Use Scenario: Manufacturing-line provisioning of unique device identities for network-connected medical gateways. IC Role / Device Role / Timing Role: Generates and stores device-specific ECDSA keys during board test using on-chip RNG and crypto engine. Use Value: Eliminates external key injection steps by leveraging AT97SC3204-X2M6-00's internal key generation and NV storage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TPM security module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Infineon SLB9670 | Supports TPM 2.0 and LPC/eSPI; higher RSA throughput (2048-bit sign in ~120ms); requires different driver stack. | Required for Windows 11 compliance and newer UEFI Secure Boot implementations. | Select when upgrading to TPM 2.0 mandates or eSPI interface compatibility is needed. |
| Nuvoton NPCT750 | TPM 2.0 compliant; integrated eSPI interface; lower power consumption; no industrial temp option in base variant. | Better suited for fanless edge gateways requiring extended thermal range and modern firmware update mechanisms. | Prefer for new designs targeting long-term Windows support and eSPI-native motherboards. |
Compared with SLB9670 and NPCT750, the AT97SC3204-X2M6-00 delivers proven TCG 1.2 interoperability in legacy PC and industrial platforms, with verified BIOS integration and industrial temperature qualification-making it optimal for cost-sensitive, long-lifecycle deployments where TPM 2.0 migration is not yet required.
Availability
AT97SC3204-X2M6-00 is available at Aetrix Electronics and suitable for secure boot authentication, platform integrity verification, and hardware-bound key protection requiring stable component supply across multi-year industrial product lifecycles.
Supply support for AT97SC3204-X2M6-00 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
Atmel Corporation, now part of Microchip Technology, is a semiconductor innovator specializing in secure microcontrollers, nonvolatile memory, and trusted computing solutions for industrial and embedded markets.
The AT97SC3204-X2M6-00 belongs to Atmel's Trusted Platform Module product line, engineered specifically to deliver certified, drop-in TPM 1.2 functionality for PC and embedded system manufacturers needing hardware-rooted security without firmware development overhead.
FAQ
What is the primary compliance standard met by the AT97SC3204-X2M6-00?
The AT97SC3204-X2M6-00 is fully compliant with the Trusted Computing Group (TCG) Trusted Platform Module (TPM) version 1.2 specification and the TCG PC Client–specific TPM Interface Specification (TIS) version 1.2. This ensures interoperability with industry-standard BIOS, operating system drivers, and security middleware that rely on TPM 1.2 functionality. The AT97SC3204-X2M6-00 does not support TPM 2.0.
Does the AT97SC3204-X2M6-00 support industrial temperature operation?
Yes, the AT97SC3204-X2M6-00 is qualified for industrial temperature range operation from −40°C to +85°C. This rating is explicitly specified in the ordering information and applies to the X2M6-00 variant, making it suitable for deployment in harsh environments such as factory automation controllers, transportation systems, and outdoor kiosks where thermal stability is critical.
What package type is used for the AT97SC3204-X2M6-00?
The AT97SC3204-X2M6-00 uses a 40-pad Very-thin Quad Flat No Lead (VQFN) package, designated as 40ML1, with dimensions of 6.0 mm × 6.0 mm and 0.50 mm pitch. This RoHS-compliant, lead-free package is optimized for high-density PCB layouts and thermal performance in space-constrained embedded applications.
How does the AT97SC3204-X2M6-00 handle cryptographic key storage?
The AT97SC3204-X2M6-00 includes internal EEPROM dedicated to secure RSA key storage and provides 1756 bytes of non-volatile (NV) user-defined data space. Keys are generated on-chip using its FIPS 140-2–compliant RNG and never exposed outside the device boundary. The AT97SC3204-X2M6-00 enforces access control policies via TCG-defined authorization protocols.
Is the AT97SC3204-X2M6-00 compatible with standard LPC host controllers?
Yes, the AT97SC3204-X2M6-00 implements the full LPC interface per TCG TIS 1.2, including LAD[3:0], LFRAME#, LCLK, SERIRQ, CLKRUN#, and LPCPD#. It has been validated with common host controllers including Intel PIIX4, ICH series, and AMD SB series chipsets, ensuring plug-and-play integration in standard PC and industrial motherboard designs.
AT97SC3204-X2M6-00 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- CryptoController™
- Package/Case:
- 40-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Applications:
- Trusted Platform Module (TPM)
- Core Processor:
- AVR
- Program Memory Type:
- EEPROM
- Controller Series:
- -
- RAM Size:
- -
- Interface:
- LPC
- Number of I/O:
- -
- Voltage - Supply:
- 3.3V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 40-VQFN (6x6)
AT97SC3204-X2M6-00 FAQ
1.How can I place an order for AT97SC3204-X2M6-00 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT97SC3204-X2M6-00 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 AT97SC3204-X2M6-00 reliable?
The price and inventory of AT97SC3204-X2M6-00 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT97SC3204-X2M6-00 is usually 5 days.
3.What payment methods are accepted for AT97SC3204-X2M6-00?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT97SC3204-X2M6-00 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT97SC3204-X2M6-00?
AT97SC3204-X2M6-00 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT97SC3204-X2M6-00 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 AT97SC3204-X2M6-00?
For technical support, including AT97SC3204-X2M6-00 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT97SC3204-X2M6-00 requirements.
6.How does Aetrix verify that AT97SC3204-X2M6-00 is sourced from the original manufacturer or authorized distributors?
All AT97SC3204-X2M6-00 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 AT97SC3204-X2M6-00 meets industry standards.
7.What is the process for return or replacement of AT97SC3204-X2M6-00?
All AT97SC3204-X2M6-00 units undergo pre-shipment inspection (PSI). If there is an issue with AT97SC3204-X2M6-00, 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 AT97SC3204-X2M6-00 part is unused and in its original packaging.
Return procedure for AT97SC3204-X2M6-00:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT97SC3204-X2M6-00 Tags
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