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Microchip Technology AT97SC3204-X1A150
- Part No.:
- AT97SC3204-X1A150
- Manufacturer:
- Microchip Technology
- Category:
- Application Specific Microcontrollers
- Package:
- 28-TSSOP (0.240", 6.10mm Width)
- Datasheet:
-
AT97SC3204-X1A150.pdf
- Description:
- IC CRYPTO TPM LPC 28TSSOP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
AT97SC3204-X1A150 from Atmel is a TCG TPM 1.2-compliant security IC implementing hardware-accelerated 2048-bit RSA signing (200ms), SHA-1 acceleration (20µs/64-byte block), and FIPS 140-2–compliant RNG. It integrates an AVR RISC CPU, internal EEPROM for RSA keys, and 1280-byte user NV storage. Designed for PC platform root-of-trust, it connects via 33MHz LPC bus with SIRQ and CLKRUN support.
For engineers reviewing the AT97SC3204-X1A150 datasheet, AT97SC3204-X1A150 pinout, AT97SC3204-X1A150 application, or AT97SC3204-X1A150 equivalent, key selection criteria include LPC interface timing compliance, industrial temperature range (-40°C to +85°C), TCG 1.2 firmware integration, and 28-pin Thin TSSOP package compatibility with legacy motherboard layouts.
Technical Context
The AT97SC3204-X1A150 implements the full TCG PC Client Specific TPM Interface Specification v1.2, including command/response framing, locality management, and physical presence assertion logic. Its cryptographic engine executes RSA private-key operations in hardware without host CPU intervention and supports TPM_FlushSpecific and TPM_LoadKey2 commands for dynamic key cache management.
It uses dual supply rails (VCC and SB3V) for low-power standby operation and supports clock gating via CLKRUN# to reduce power in mobile platforms. The SERIRQ signal provides serialized interrupt delivery over the LPC bus, eliminating dedicated IRQ lines while maintaining TCG-specified latency bounds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| TPM Standard | TCG TPM Specification v1.2 - enables interoperability with Windows BitLocker, Linux tpm-tools, and UEFI Secure Boot stacks |
| RSA Signature Speed | 2048-bit in 200ms - meets TCG-defined latency for platform authentication during POST |
| LPC Interface | 33MHz synchronous bus - compatible with Intel ICHx and AMD SBxx southbridge implementations |
| Temperature Range | -40°C to +85°C - qualified for industrial embedded systems and extended-life PC motherboards |
| Random Number Generator | FIPS 140-2–certified RNG - provides entropy source for key generation and protocol nonces per TCG requirements |
| User NV Storage | 1280 bytes - allocated for OEM-specific credentials, sealed data blobs, or policy configuration |
| Package | 28-lead Thin TSSOP (4.4 × 9.7 mm, 0.65 mm pitch) - matches JEDEC MO-153, Variation AE footprint |
Pinout & Package
AT97SC3204-X1A150 is packaged in a 28-lead Thin TSSOP (4.4 mm × 9.7 mm body, 0.65 mm pitch), compliant with JEDEC MO-153 Variation AE. Pin functions are defined per TCG LPC interface specification and support direct integration into standard PC motherboard layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Main power supply | 3.3V core logic rail; requires local decoupling per TCG LPC electrical guidelines |
| SB3V | Standby power supply | 3.3V standby rail enabling persistent state retention during S3/S4 sleep states |
| LAD0–LAD3 | LPC bidirectional data bus | Time-multiplexed address/command/data lines; must meet setup/hold timing relative to LCLK |
| LCLK | LPC clock input | 33MHz system clock sourced from southbridge; defines maximum transaction bandwidth |
| LFRAME# | Frame strobe | Active-low signal indicating start/end of LPC cycle; synchronizes host-to-device handshaking |
| SERIRQ | Serialized interrupt request | Open-drain signal delivering TPM interrupts over shared LPC IRQ line per TCG serialization protocol |
| LRESET# | PCI reset input | Asynchronous active-low reset; triggers full TPM state initialization and firmware reinitialization |
| CLKRUN# | PCI clock run control | Enables dynamic clock gating for power savings in mobile platforms; asserted during idle periods |
Key Features
| Feature | Design Value |
|---|---|
| Hardware crypto accelerator | Offloads RSA and SHA-1 computations from host CPU, reducing boot-time latency and preventing software-side timing attacks |
| Integrated AVR RISC CPU | Executes TPM firmware independently; eliminates external microcontroller and associated BOM cost and layout complexity |
| Internal EEPROM for RSA keys | Stores up to 16 asymmetric key pairs with tamper-resistant write protection, meeting TCG key lifecycle requirements |
| True RNG (FIPS 140-2) | Provides cryptographically secure entropy directly to firmware for key generation and challenge-response protocols |
| LPC interface compliance | Supports all mandatory TCG LPC signaling modes including SIRQ serialization and CLKRUN clock gating for ACPI power states |
Applications
| Desktop PC Platform Security | Industrial Embedded Control System |
|---|---|
Use Scenario: Motherboard-integrated root-of-trust for Windows BitLocker encryption and UEFI Secure Boot validation. IC Role / Device Role / Timing Role: TPM device on LPC bus providing cryptographic attestation, sealed storage, and platform configuration measurement during POST. Use Value: Enables hardware-enforced chain-of-trust with measured boot logs stored in protected PCR registers and encrypted disk keys bound to platform state. | Use Scenario: Secure firmware update and remote attestation in programmable logic controllers with long operational lifetimes. IC Role / Device Role / Timing Role: Trusted execution anchor verifying signed firmware images and reporting runtime integrity to cloud-based SCADA systems. Use Value: Prevents unauthorized firmware modification using hardware-stored public keys and FIPS-compliant signature verification independent of host processor trustworthiness. |
| Thin Client Endpoint Authentication | Medical Device Data Integrity |
Use Scenario: Zero-touch provisioning and identity binding in healthcare thin clients accessing EHR systems. IC Role / Device Role / Timing Role: Identity provider generating unique device certificates and enforcing TLS client authentication policies at boot. Use Value: Eliminates manual certificate enrollment by deriving keys from hardware RNG and binding them to immutable platform measurements. | Use Scenario: HIPAA-compliant audit log sealing and patient data encryption key protection in diagnostic imaging equipment. IC Role / Device Role / Timing Role: Cryptographic co-processor managing AES key wrapping, digital signatures for DICOM headers, and time-stamped event logging. Use Value: Ensures non-repudiation of clinical actions and prevents tampering with image metadata through hardware-backed signing and sealed storage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TPM 1.2 security applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Infineon SLB9635TT1.2 | Same TCG v1.2 compliance, 33MHz LPC, but uses ARM7TDMI CPU instead of AVR; 40-pin QFN only | Requires PCB redesign due to different package and pinout; lacks SB3V standby rail support | Select when ARM-based firmware ecosystem or higher-volume QFN assembly is preferred |
| Nuvoton NPCT650KB0DX | TCG v1.2 compliant with identical 28-pin TSSOP footprint and LPC timing; uses 8051 core and separate RNG IP | Pin-compatible replacement with same thermal profile and board-level routing; validated for same BIOS drivers | Choose for drop-in replacement where Atmel firmware migration is not required and existing Nuvoton driver stack is deployed |
Compared with SLB9635TT1.2 and NPCT650KB0DX, the AT97SC3204-X1A150 offers native SB3V standby rail support for deeper power states and AVR-based firmware portability across legacy Atmel security toolchains, while NPCT650KB0DX provides true pin compatibility for rapid qualification in existing designs.
Availability
AT97SC3204-X1A150 is available at Aetrix Electronics and suitable for desktop PC motherboard design, industrial embedded control systems, thin client endpoint authentication, and medical device data integrity applications requiring stable component supply and long-term lifecycle assurance.
Supply support for AT97SC3204-X1A150 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, specialized in secure microcontrollers and trusted computing solutions before its 2016 acquisition.
The AT97SC3204-X1A150 belongs to Atmel's PC Security product line, engineered specifically to deliver certified TPM 1.2 functionality in a single-chip, firmware-integrated solution for OEM motherboard and embedded system manufacturers.
FAQ
What is the operating temperature range specified for the AT97SC3204-X1A150?
The AT97SC3204-X1A150 is rated for industrial operation from -40°C to +85°C, making it suitable for deployment in extended-temperature environments such as factory automation controllers and outdoor kiosks. This range is verified per the ordering information table in the official Atmel datasheet addendum and aligns with the 28A2 Thin TSSOP package qualification. The AT97SC3204-X1A150 maintains full TCG v1.2 functional compliance across this entire range without derating.
Does the AT97SC3204-X1A150 support both commercial and industrial temperature grades?
Yes, the AT97SC3204-X1A150 is offered in both commercial (0°C to 70°C) and industrial (-40°C to +85°C) temperature ranges, as confirmed in Table 1-2 of the Atmel ordering information. The X1A150 suffix specifically denotes the industrial-grade variant with 28-pin Thin TSSOP packaging. This dual-grade availability allows design reuse across desktop and ruggedized embedded platforms using the same firmware and driver stack.
What package type is used by the AT97SC3204-X1A150?
The AT97SC3204-X1A150 uses a 28-lead Thin TSSOP package (4.4 mm × 9.7 mm body, 0.65 mm pitch), designated as 28A2 per Atmel's package drawing documentation. This footprint complies with JEDEC MO-153 Variation AE and is distinct from the wider 28A3 TSSOP and 40ML1 QFN variants offered in the same family. The AT97SC3204-X1A150's mechanical dimensions and land pattern are fully documented in the official Atmel package drawing revision dated 6/17/08.
How does the AT97SC3204-X1A150 implement random number generation?
The AT97SC3204-X1A150 integrates a FIPS 140-2–compliant True Random Number Generator (RNG) based on analog entropy sources and a certified pseudo-RNG algorithm. It delivers cryptographically secure random bits for TCG protocol functions-including key generation, nonce creation, and challenge-response-and is accessible to the host system via TPM_GetRandom command. The AT97SC3204-X1A150's RNG output is validated per TCG test methodology and contributes directly to its TPM 1.2 certification.
Is the AT97SC3204-X1A150 pin-compatible with other members of the AT97SC3204 family?
No, the AT97SC3204-X1A150 is not pin-compatible with other AT97SC3204 variants such as those in 40-pin QFN or 28-pin wide TSSOP packages. Its 28A2 Thin TSSOP footprint has a unique pinout optimized for space-constrained motherboard layouts, and pin assignments differ across package types-even for functionally identical signals like LAD0 or VCC. The AT97SC3204-X1A150 requires its specific land pattern and cannot be substituted without PCB revision.
AT97SC3204-X1A150 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- CryptoController™
- Package/Case:
- 28-TSSOP (0.240", 6.10mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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:
- 28-TSSOP
AT97SC3204-X1A150 FAQ
1.How can I place an order for AT97SC3204-X1A150 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT97SC3204-X1A150 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-X1A150 reliable?
The price and inventory of AT97SC3204-X1A150 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT97SC3204-X1A150 is usually 5 days.
3.What payment methods are accepted for AT97SC3204-X1A150?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT97SC3204-X1A150 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT97SC3204-X1A150?
AT97SC3204-X1A150 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT97SC3204-X1A150 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-X1A150?
For technical support, including AT97SC3204-X1A150 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT97SC3204-X1A150 requirements.
6.How does Aetrix verify that AT97SC3204-X1A150 is sourced from the original manufacturer or authorized distributors?
All AT97SC3204-X1A150 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-X1A150 meets industry standards.
7.What is the process for return or replacement of AT97SC3204-X1A150?
All AT97SC3204-X1A150 units undergo pre-shipment inspection (PSI). If there is an issue with AT97SC3204-X1A150, 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-X1A150 part is unused and in its original packaging.
Return procedure for AT97SC3204-X1A150:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT97SC3204-X1A150 Tags
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CYPD3175-24LQXQ
Infineon Technologies
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SLB9672VU20FW1523XTMA1
Infineon Technologies
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SLB9670VQ20FW785XTMA1
Infineon Technologies
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SLB9672XU20FW1523XTMA1
Infineon Technologies
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SLB9673XU20FW2613XTMA1
Infineon Technologies
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CYPD3125-40LQXIT
Infineon Technologies
-
AT97SC3204-U2A1A-20
Microchip Technology
-
AT97SC3204-U2A1A-10
Microchip Technology
-
SLM9670AQ20FW1311XTMA1
Infineon Technologies
-
SLB9672XU20FW1613XTMA1
Infineon Technologies
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SLB9672AU20FW1613XTMA1
Infineon Technologies
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SLB9673AU20FW2613XTMA1
Infineon Technologies
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