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Microchip Technology AT97SC3204-U1A150
- Part No.:
- AT97SC3204-U1A150
- Manufacturer:
- Microchip Technology
- Category:
- Application Specific Microcontrollers
- Package:
- 28-TSSOP (0.240", 6.10mm Width)
- Datasheet:
-
AT97SC3204-U1A150.pdf
- Description:
- IC CRYPTO TPM LPC 28TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,804
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Product details
Overview
AT97SC3204-U1A150 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 in LPC-based motherboards.
For engineers reviewing the AT97SC3204-U1A150 datasheet, AT97SC3204-U1A150 pinout, AT97SC3204-U1A150 application, or AT97SC3204-U1A150 equivalent, key selection factors include LPC bus timing compliance, industrial temperature support (−40°C to +85°C), TCG 1.2 firmware integration, and secure key lifecycle management without host intervention.
Technical Context
The AT97SC3204-U1A150 implements the full TCG TPM 1.2 specification stack-including command parsing, cryptographic execution, and physical security monitoring-within a single die. Its AVR RISC core executes firmware directly from on-chip ROM and manages EEPROM-resident keys using dynamic cache allocation per TCG commands like TPM_FlushSpecific and TPM_LoadKey2.
LPC interface operation includes LFRAME#, LCLK (33 MHz), SIRQ-capable SERIRQ, and CLKRUN# for clock gating in mobile platforms. The hardware crypto engine offloads asymmetric operations from the host CPU while the FIPS-approved PRNG feeds both key generation and system-level random number requests.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| TPM Specification | TCG TPM 1.2 compliant; implements PC Client Specific Interface Spec v1.2 |
| RSA Signature Speed | 2048-bit RSA sign completed in ≤200ms; enables fast attestation and sealing |
| SHA-1 Throughput | 20µs per 64-byte block; supports efficient hash chaining for PCR extension |
| Random Number Generator | FIPS 140-2–certified hardware RNG; used for key generation and runtime entropy supply |
| Nonvolatile Storage | 1280 bytes user-defined NV space; persists policy data, credentials, or sealed blobs across reboots |
| Supply Voltage | 3.3V nominal; compatible with standard LPC bus power domains |
| Operating Temperature | −40°C to +85°C industrial grade; validated for extended thermal cycling in embedded chassis |
Pinout & Package
AT97SC3204-U1A150 is packaged in a 28-lead Thin TSSOP (4.4 mm × 9.7 mm, 0.65 mm pitch) per JEDEC MO-153 Variation AE. Pin functions are defined for LPC bus signaling, power sequencing, and secure I/O control.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Primary Power Supply | 3.3V main supply for logic and crypto engine; decoupling required per LPC spec |
| SB3V | Standby Power Rail | Maintains SRAM and key state during S3/S4 sleep; enables resume without re-authentication |
| LAD0–LAD3 | LPC Data Bus | 4-bit bidirectional multiplexed address/data/command lines; supports burst transfers up to 33 MHz |
| LCLK | LPC Clock Input | 33 MHz synchronous clock; defines timing for all LPC transactions and interrupt latency |
| LFRAME# | LPC Frame Strobe | Active-low signal indicating start/end of LPC cycle; synchronizes host-to-TPM command framing |
| SERIRQ | Serialized Interrupt | Open-drain IRQ line shared across LPC peripherals; supports level-sensitive assertion for TPM events |
| LRESET# | PCI Reset Input | Asynchronous active-low reset; initiates secure boot sequence and clears volatile state |
| CLKRUN# | PCI Clock Run Control | Enables clock gating during idle; reduces power in mobile platforms without breaking LPC protocol |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Asymmetric Crypto Engine | Offloads 2048-bit RSA and SHA-1 from host CPU; eliminates software-side timing side-channel risks |
| Internal EEPROM Key Storage | Stores multiple RSA key pairs with hardware-enforced access control; no external flash required |
| Dynamic Key Cache Management | Automatically allocates/releases key slots via TPM_FlushSpecific; no host driver memory management overhead |
| Secure Physical Layout | Dedicated tamper-sensing circuitry and masked metal layers prevent probing and fault injection attacks |
| LPC Interface Compliance | Fully implements TCG PC Client LPC timing, voltage, and protocol requirements; interoperable with Intel PCH and AMD FCH |
Applications
| Desktop PC Platform Security | Industrial Embedded Control System |
|---|---|
Use Scenario: Secure boot and measured launch on x86 motherboards with UEFI BIOS. IC Role / Device Role / Timing Role: Root-of-trust anchor performing PCR extension, key sealing, and remote attestation. Use Value: Enables BitLocker encryption binding and Windows Hello credential protection using hardware-bound keys. | Use Scenario: Firmware integrity verification in programmable logic controllers with field-upgradable code. IC Role / Device Role / Timing Role: Secure bootloader authenticator verifying signed firmware images before execution. Use Value: Prevents unauthorized firmware modification in harsh environments where flash corruption or malware injection is a risk. |
| Medical Device Authentication | Network Appliance Trusted Boot |
Use Scenario: Regulatory-compliant device identity provisioning in FDA-cleared diagnostic equipment. IC Role / Device Role / Timing Role: Cryptographic identity provider storing device-specific ECDSA keys and attestation certificates. Use Value: Meets IEC 62304 and HIPAA requirements for unique, non-exportable device identity and audit logging. | Use Scenario: Secure initialization of firewall or SD-WAN appliances requiring zero-touch provisioning. IC Role / Device Role / Timing Role: Hardware-backed key escrow for TLS certificate enrollment and secure configuration decryption. Use Value: Enables automated PKI enrollment without exposing private keys to OS or management agents. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TPM security applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Infineon SLB9665TT2.0 | TCG 2.0 compliant; supports ECC and SHA-256; requires different LPC initialization sequence | Designed for modern UEFI Secure Boot with PCR banks for TPM 2.0 policies | Select when upgrading to TPM 2.0 mandates or requiring elliptic curve cryptography |
| Nuvoton NPCT750KB0GX | TCG 1.2 compliant; same 28-pin TSSOP package; lower RSA throughput (2048-bit sign in 350ms) | Optimized for cost-sensitive industrial designs with identical LPC timing envelope | Select when footprint compatibility and legacy BIOS support are prioritized over peak crypto performance |
Compared with SLB9665TT2.0 and NPCT750KB0GX, the AT97SC3204-U1A150 delivers faster 2048-bit RSA signing and integrated AVR firmware enabling immediate TCG 1.2 deployment without host-side crypto library dependencies.
Availability
AT97SC3204-U1A150 is available at Aetrix Electronics and suitable for desktop motherboard design, industrial control system integration, and medical device certification requiring stable component supply and long-term lifecycle assurance.
Supply support for AT97SC3204-U1A150 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 systems.
The AT97SC3204-U1A150 belongs to Atmel's PC Security product line, engineered specifically to deliver certified, turnkey TPM 1.2 functionality for OEM motherboard vendors and embedded platform integrators.
FAQ
What is the operating temperature range supported by the AT97SC3204-U1A150?
The AT97SC3204-U1A150 is rated for industrial temperature operation from −40°C to +85°C. This range is validated per the ordering information table and ensures reliable cryptographic operation under thermal stress conditions typical in embedded chassis and industrial enclosures. The AT97SC3204-U1A150 maintains full TCG 1.2 compliance across this entire range without derating.
Does the AT97SC3204-U1A150 require external firmware loading during system boot?
No. The AT97SC3204-U1A150 integrates complete TCG 1.2 firmware in on-chip ROM. It powers up ready to respond to LPC commands without host-initiated firmware download or update. The AT97SC3204-U1A150 uses internal EEPROM only for key storage and user NV data-not for executable code.
How does the AT97SC3204-U1A150 handle power management in mobile platforms?
The AT97SC3204-U1A150 supports LPC power management via CLKRUN# signaling to gate the 33 MHz clock during idle states, reducing dynamic power consumption. SB3V standby rail preserves key state and SRAM contents during S3/S4 sleep, enabling instant resume without re-sealing or re-authentication. The AT97SC3204-U1A150 meets ACPI-compliant power sequencing requirements.
Is the AT97SC3204-U1A150 pin-compatible with other Atmel TPM devices?
The AT97SC3204-U1A150 shares the same 28-pin Thin TSSOP footprint and pinout as AT97SC3204 variants with suffixes U1A100 and U1A120. However, it is not pin-compatible with QFN-packaged AT97SC3204-40ML1 or earlier AT97SC3202 derivatives due to differing pin counts and LPC signal routing. Always verify package code before PCB layout reuse.
What cryptographic algorithms are accelerated in hardware by the AT97SC3204-U1A150?
The AT97SC3204-U1A150 provides dedicated hardware acceleration for 1024-bit and 2048-bit RSA signature generation (40ms and 200ms respectively) and SHA-1 hashing (20µs per 64-byte block). It does not accelerate AES, ECC, or SHA-256. All accelerated operations execute within the secure boundary of the AT97SC3204-U1A150 die with no software exposure.
AT97SC3204-U1A150 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:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-TSSOP
AT97SC3204-U1A150 FAQ
1.How can I place an order for AT97SC3204-U1A150 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT97SC3204-U1A150 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-U1A150 reliable?
The price and inventory of AT97SC3204-U1A150 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT97SC3204-U1A150 is usually 5 days.
3.What payment methods are accepted for AT97SC3204-U1A150?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT97SC3204-U1A150 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT97SC3204-U1A150?
AT97SC3204-U1A150 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT97SC3204-U1A150 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-U1A150?
For technical support, including AT97SC3204-U1A150 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT97SC3204-U1A150 requirements.
6.How does Aetrix verify that AT97SC3204-U1A150 is sourced from the original manufacturer or authorized distributors?
All AT97SC3204-U1A150 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-U1A150 meets industry standards.
7.What is the process for return or replacement of AT97SC3204-U1A150?
All AT97SC3204-U1A150 units undergo pre-shipment inspection (PSI). If there is an issue with AT97SC3204-U1A150, 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-U1A150 part is unused and in its original packaging.
Return procedure for AT97SC3204-U1A150:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT97SC3204-U1A150 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
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AT97SC3204-U2A1A-20
Microchip Technology
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AT97SC3204-U2A1A-10
Microchip Technology
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SLM9670AQ20FW1311XTMA1
Infineon Technologies
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SLB9672XU20FW1613XTMA1
Infineon Technologies
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SLB9672AU20FW1613XTMA1
Infineon Technologies
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SLB9673AU20FW2613XTMA1
Infineon Technologies
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