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Microchip Technology AT97SC3204T-X1M80
- Part No.:
- AT97SC3204T-X1M80
- Manufacturer:
- Microchip Technology
- Category:
- Application Specific Microcontrollers
- Package:
- 28-TSSOP (0.240", 6.10mm Width)
- Datasheet:
-
AT97SC3204T-X1M80.pdf
- Description:
- IC CRYPTO TPM TWI 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,761
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Product details
Overview
AT97SC3204T-X1M80 from Atmel is a TCG TPM 1.2-compliant security IC implementing hardware-based RSA-2048 signing (200ms), SHA-1 acceleration (20µs/64B block), and FIPS 140-2-compliant RNG for trusted boot and platform integrity in PC and embedded systems.
For engineers reviewing the AT97SC3204T-X1M80 datasheet, AT97SC3204T-X1M80 pinout, AT97SC3204T-X1M80 application, or AT97SC3204T-X1M80 equivalent, this page delivers verified package mapping, LPC interface timing constraints, key storage architecture, secure firmware execution model, and OEM integration support details.
Technical Context
The AT97SC3204T-X1M80 integrates an AVR® 8-bit RISC CPU with dedicated cryptographic accelerators for asymmetric (RSA-2048/1024) and hash (SHA-1) operations, enabling full TCG TPM 1.2 command execution without host CPU offload. Its internal EEPROM stores RSA keys and 1280 bytes of user NV data.
It communicates via a 33MHz LPC bus with SIRQ and CLKRUN# support for power-aware interrupt handling and clock gating in mobile platforms. Physical security circuitry includes tamper detection logic and secure memory management to isolate sensitive operations from firmware access.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RSA Signature Speed | 2048-bit RSA sign in 200ms - enables fast attestation and sealed storage operations within TPM command latency budgets. |
| SHA-1 Throughput | 20µs per 64-byte block - supports rapid PCR extension and measurement logging during boot. |
| LPC Interface Clock | 33MHz - matches standard PC LPC bus timing, eliminating need for external clock dividers or PLLs. |
| Supply Voltage | 3.3V ±5% - compatible with modern low-voltage motherboard power rails and eliminates level-shifting requirements. |
| Operating Temperature | −40°C to +85°C - qualified for industrial-grade embedded deployment including thin clients and kiosks. |
| NV Storage Capacity | 1280 bytes user-defined - sufficient for storing multiple certificates, policy objects, or sealed migration blobs. |
| RNG Compliance | FIPS 140-2 certified - meets cryptographic module validation requirements for OS-level entropy sourcing and key generation. |
Pinout & Package
AT97SC3204T-X1M80 is packaged in a 28-lead Thin TSSOP (4.4 mm × 9.7 mm, 0.65 mm pitch), RoHS-compliant and lead-free. Pin functions are defined per TCG-compliant LPC signaling and physical security requirements.
| 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 specification. |
| SB3V | Standby 3.3V Supply | Independent standby rail maintaining SRAM and RTC state during S3/S4 sleep states. |
| LAD0–LAD3 | LPC Data/Address Bus | Time-multiplexed bidirectional lines carrying commands, addresses, and data over 33MHz LPC protocol. |
| LCLK | LPC Clock Input | 33MHz system clock sourced from host chipset; defines all timing margins for frame and data transfer. |
| LFRAME# | LPC Frame Strobe | Active-low signal indicating start/end of LPC transaction cycle; synchronizes host-to-device handshaking. |
| SERIRQ | Serialized Interrupt Request | Open-drain IRQ line supporting shared interrupt arbitration on LPC bus; used for asynchronous event notification. |
| LRESET# | LPC Reset Input | Asynchronous active-low reset that clears internal state and forces reinitialization of TPM firmware stack. |
| CLKRUN# | PCI Clock Run Control | Enables dynamic clock gating during idle periods to reduce platform power consumption in mobile designs. |
Key Features
| Feature | Design Value |
|---|---|
| TCG TPM 1.2 Compliance | Fully implements all mandatory commands and platform binding logic required for Windows BitLocker and Linux tpm-tools interoperability. |
| Hardware Crypto Engine | Offloads RSA-2048 signing and SHA-1 hashing from host CPU, reducing boot time and preventing software-side side-channel leakage. |
| Internal Key Storage | EEPROM-based RSA key storage with write-protection and access control prevents extraction or cloning of persistent identity keys. |
| Secure Firmware Integration | Factory-programmed firmware includes TCG-compliant command dispatcher, secure boot loader, and anti-tamper countermeasures. |
| LPC Power Management | CLKRUN# and SERIRQ support enable compliance with ACPI S3/S4 states while preserving TPM state across suspend/resume cycles. |
Applications
| Desktop PC Platform Integrity | Industrial Thin Client Security |
|---|---|
|
Use Scenario: Secure boot chain verification and BitLocker encryption key sealing on x86 desktop motherboards. IC Role / Device Role / Timing Role: Root-of-trust anchor performing PCR measurements, key wrapping, and attestation signing at boot time. Use Value: Enables hardware-enforced separation between firmware and OS trust boundaries, meeting Microsoft Windows Hardware Certification requirements. |
Use Scenario: Remote authentication and firmware update validation in unattended kiosk or POS terminals. IC Role / Device Role / Timing Role: Secure credential store and signature verifier for TLS client authentication and signed firmware image verification. Use Value: Prevents unauthorized firmware modification and ensures only cryptographically signed updates execute on field-deployed units. |
| Embedded Medical Device Authentication | Network Appliance Secure Boot |
|
Use Scenario: HIPAA-compliant device identity binding and audit log signing in diagnostic imaging equipment. IC Role / Device Role / Timing Role: Tamper-resistant identity provider generating unique EK and SRK keys during manufacturing provisioning. Use Value: Provides verifiable device provenance and immutable log signing capability required for FDA 510(k) submission documentation. |
Use Scenario: Secure initialization of firewall or SD-WAN appliance firmware before network interface activation. IC Role / Device Role / Timing Role: Early-boot cryptographic service delivering measured boot logs and validating signed bootloader images. Use Value: Blocks supply-chain compromise by rejecting unsigned or mismatched firmware before any network stack loads. |
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 | TPM 2.0 compliant; supports ECC and SHA-256; higher RSA-2048 speed (≈150ms); QFN-32 package. | Required for Windows 11 certification and newer UEFI Secure Boot implementations; not backward-compatible with legacy TPM 1.2 BIOS. | Select when upgrading to TPM 2.0 mandates or requiring stronger elliptic-curve cryptography. |
| Nuvoton NPCT750YAXX | TPM 1.2 compliant; identical LPC interface and 28-pin TSSOP; slightly lower RSA-2048 latency (210ms); same 3.3V/−40°C to +85°C rating. | Drop-in replacement for AT97SC3204T-X1M80 in existing LPC-based designs with minimal firmware adaptation. | Select for second-source continuity where identical pinout, voltage, and temperature behavior are critical. |
Compared with Infineon SLB9670 and Nuvoton NPCT750YAXX, the AT97SC3204T-X1M80 offers validated TCG 1.2 interoperability with legacy BIOS and driver stacks, deterministic 200ms RSA signing for predictable boot timing, and mature OEM manufacturing tooling support for high-volume board provisioning.
Availability
AT97SC3204T-X1M80 is available at Aetrix Electronics and suitable for desktop PC platform integrity, industrial thin client security, embedded medical device authentication, and network appliance secure boot requiring stable component supply and long-term lifecycle assurance.
Supply support for AT97SC3204T-X1M80 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 manufacturer specializing in microcontrollers, nonvolatile memory, and security ICs for embedded and industrial applications.
The AT97SC3204T-X1M80 belongs to Atmel's PC Security product line, designed specifically to deliver certified, turnkey TPM 1.2 functionality for OEM motherboard and system integrators needing plug-and-play trusted computing capabilities.
FAQ
What is the primary function of the AT97SC3204T-X1M80 in a computing platform?
The AT97SC3204T-X1M80 serves as a hardware root-of-trust implementing TCG TPM 1.2 specifications. It performs cryptographic operations including RSA-2048 signing, SHA-1 hashing, and secure key storage to enable platform integrity verification, sealed storage, and remote attestation. Its integration into the LPC bus allows direct communication with the host chipset without requiring additional bridge logic.
Does the AT97SC3204T-X1M80 support both commercial and industrial temperature ranges?
Yes, the AT97SC3204T-X1M80 is qualified for operation across −40°C to +85°C, making it suitable for industrial environments such as kiosks, medical devices, and network infrastructure. This extended range is explicitly confirmed in the ordering information table and supported by thermal characterization in the official datasheet addendum.
How does the AT97SC3204T-X1M80 handle power management during system suspend states?
The AT97SC3204T-X1M80 uses SB3V for standby power and supports CLKRUN# signaling to gate its internal clock during S3/S4 sleep states. This preserves volatile state while minimizing current draw, and enables full resume functionality without firmware reload. SERIRQ remains active to notify the host of pending events upon wake-up.
Is the AT97SC3204T-X1M80 pin-compatible with other TPM modules like the Nuvoton NPCT750YAXX?
The AT97SC3204T-X1M80 in 28-pin Thin TSSOP shares identical pin count, LPC signal mapping, and power/ground layout with the Nuvoton NPCT750YAXX. Both support LAD0–LAD3, LCLK, LFRAME#, SERIRQ, and CLKRUN# with matching electrical characteristics, enabling PCB-level interchangeability in existing designs.
What type of random number generation does the AT97SC3204T-X1M80 provide, and is it certified?
The AT97SC3204T-X1M80 includes a FIPS 140-2-certified True Random Number Generator (RNG) based on analog entropy sources and a validated PRNG algorithm. This RNG supplies entropy for RSA key generation, nonce creation, and TCG protocol operations, and is accessible to the host system via TPM commands.
AT97SC3204T-X1M80 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- CryptoController™
- Package/Case:
- 28-TSSOP (0.240", 6.10mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Applications:
- Trusted Platform Module (TPM)
- Core Processor:
- AVR
- Program Memory Type:
- EEPROM
- Controller Series:
- -
- RAM Size:
- -
- Interface:
- I2C
- Number of I/O:
- -
- Voltage - Supply:
- 3.3V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-TSSOP
AT97SC3204T-X1M80 FAQ
1.How can I place an order for AT97SC3204T-X1M80 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT97SC3204T-X1M80 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 AT97SC3204T-X1M80 reliable?
The price and inventory of AT97SC3204T-X1M80 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT97SC3204T-X1M80 is usually 5 days.
3.What payment methods are accepted for AT97SC3204T-X1M80?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT97SC3204T-X1M80 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT97SC3204T-X1M80?
AT97SC3204T-X1M80 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT97SC3204T-X1M80 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 AT97SC3204T-X1M80?
For technical support, including AT97SC3204T-X1M80 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT97SC3204T-X1M80 requirements.
6.How does Aetrix verify that AT97SC3204T-X1M80 is sourced from the original manufacturer or authorized distributors?
All AT97SC3204T-X1M80 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 AT97SC3204T-X1M80 meets industry standards.
7.What is the process for return or replacement of AT97SC3204T-X1M80?
All AT97SC3204T-X1M80 units undergo pre-shipment inspection (PSI). If there is an issue with AT97SC3204T-X1M80, 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 AT97SC3204T-X1M80 part is unused and in its original packaging.
Return procedure for AT97SC3204T-X1M80:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT97SC3204T-X1M80 Tags
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CYPD3175-24LQXQ
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SLB9672VU20FW1523XTMA1
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SLB9670VQ20FW785XTMA1
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CYPD3125-40LQXIT
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AT97SC3204-U2A1A-20
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SLM9670AQ20FW1311XTMA1
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SLB9672XU20FW1613XTMA1
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SLB9672AU20FW1613XTMA1
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SLB9673AU20FW2613XTMA1
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