My Inquiry
My Account
Microchip Technology AT97SC3204T-X2MB-00
- Part No.:
- AT97SC3204T-X2MB-00
- Manufacturer:
- Microchip Technology
- Category:
- Application Specific Microcontrollers
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
AT97SC3204T-X2MB-00.pdf
- Description:
- IC CRYPTO TPM TWI 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,749
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AT97SC3204T-X2MB-00 from Microchip Technology (formerly Atmel) is a Trusted Platform Module (TPM) IC implementing TPM 1.2 specification over TWI (I²C) interface, housed in a 40-pin QFN package, operating from 0°C to 70°C, and featuring Endorsement Key (EK) support for hardware-rooted device identity and cryptographic attestation in PC and server platforms.
For engineers reviewing the AT97SC3204T-X2MB-00 datasheet, AT97SC3204T-X2MB-00 pinout, AT97SC3204T-X2MB-00 application, or AT97SC3204T-X2MB-00 equivalent, key selection considerations include I²C bus timing compliance, TPM 1.2 command set support, EK provisioning capability, industrial vs. commercial temperature grade, and migration path from legacy LPC-based TPMs.
Technical Context
The AT97SC3204T-X2MB-00 implements a dedicated secure cryptoprocessor with on-die RSA key generation, SHA-1 hashing, HMAC authentication, and monotonic counter support - all compliant with ISO/IEC 11889-1:2009 and TCG TPM 1.2 Level 2 requirements. It uses TWI (I²C) at up to 400 kHz for host communication and integrates non-volatile memory for persistent TPM state storage.
This device operates as a discrete security co-processor, isolated from the main CPU, enforcing secure boot validation, platform configuration measurement, and sealed storage operations. Its architecture includes tamper-resistant logic, power-on self-test (POST), and hardware-based random number generation via analog entropy source.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Interface | TWI (I²C) at 100–400 kHz; enables integration with low-pin-count host controllers without requiring LPC bus routing. |
| TPM Specification | TCG TPM 1.2 Level 2 compliant; supports full command set including PCR extend, quote, seal/unseal, and key creation. |
| Endorsement Key | Factory-provisioned asymmetric EK (RSA 2048-bit); provides immutable hardware identity for remote attestation and certificate binding. |
| Operating Temperature | 0°C to 70°C; validated for commercial desktop, notebook, and embedded server motherboard environments. |
| Package | 40-pin QFN (40ML1), 6 mm × 6 mm × 0.9 mm; surface-mount compatible with standard reflow profiles and high-density PCB layouts. |
| Security Features | On-chip SHA-1 engine, HMAC-SHA1, RSA key generation & signing, monotonic counters, and secure non-volatile storage for TPM state. |
Pinout & Package
AT97SC3204T-X2MB-00 is supplied in a 40-pin QFN (40ML1) package with exposed thermal pad. Pin functions are defined per Atmel-8728D-TPM-AT97SC3204-3204T-Addendum_062014 and align with standard TPM I²C interface mapping for VDD, GND, SDA, SCL, RESET#, INT#, and auxiliary control signals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | 3.3 V ±10% supply; powers internal crypto engine, I²C interface, and non-volatile memory. |
| GND | Ground reference | Digital and analog ground return; requires low-impedance connection to system ground plane. |
| SDA | I²C data line | Open-drain bidirectional signal; connects to host I²C controller with pull-up resistor (typically 4.7 kΩ). |
| SCL | I²C clock line | Open-drain input; driven by host; defines transaction timing up to 400 kHz standard-mode rate. |
| RESET# | Active-low reset input | Asynchronous hardware reset; initiates TPM initialization sequence and clears volatile state. |
| INT# | Interrupt output | Open-drain active-low signal indicating command completion or event pending to host processor. |
Key Features
| Feature | Design Value |
|---|---|
| TPM 1.2 Compliance | Fully implements TCG-specified command set and platform binding requirements for certified Windows and Linux OS trust stacks. |
| Hardware-Random Number Generator | Analog entropy source feeding SHA-1-based DRBG; meets FIPS 140-2 Annex C requirements for cryptographic key material. |
| Secure Non-Volatile Storage | Embedded EEPROM array storing PCR values, NV indices, and persistent keys; resistant to glitch and fault injection attacks. |
| Monotonic Counters | Four hardware-monitored counters with anti-rollback protection; used for license enforcement and usage auditing. |
| Endorsement Key Provisioning | Factory-programmed RSA-2048 EK with unique certificate chain; enables zero-touch attestation during first boot. |
Applications
| PC Desktop Security | Server Platform Integrity |
|---|---|
Use Scenario: Desktop OEMs embedding hardware-rooted security into consumer and business PCs for BitLocker encryption and Secure Boot enforcement. IC Role / Device Role / Timing Role: Discrete TPM co-processor providing cryptographic services and platform measurement storage independent of CPU firmware. Use Value: Enables OS-level attestation and sealed storage using factory-provisioned EK, meeting Microsoft Windows Hardware Certification requirements. | Use Scenario: Rack-mounted servers requiring remote integrity verification and firmware update authorization before deployment. IC Role / Device Role / Timing Role: Dedicated security anchor validating BIOS/UEFI measurements and enabling signed firmware updates via TPM-stored policies. Use Value: Supports measured boot chain and policy-enforced update workflows using SHA-1 PCR extension and sealed key recovery. |
| Industrial Embedded Control | Thin Client Authentication |
Use Scenario: Factory automation gateways needing secure device identity and encrypted telemetry transmission to cloud platforms. IC Role / Device Role / Timing Role: Hardware-trusted identity provider generating attestation reports for TLS client certificate binding. Use Value: Delivers immutable device identity via EK and supports HMAC-based message authentication using on-chip SHA-1 engine. | Use Scenario: Zero-client terminals authenticating to centralized VDI infrastructure using hardware-backed credentials. IC Role / Device Role / Timing Role: Cryptographic accelerator handling PKCS#1 v1.5 signing and key unwrapping for session credential establishment. Use Value: Offloads RSA-2048 signing from host processor and ensures private key material never leaves secure boundary. |
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 | I²C interface, TPM 1.2 Level 2, same 40-pin QFN package; includes enhanced side-channel resistance and extended life-cycle management. | Supports longer product lifecycle and automotive-qualified variants; broader industrial qualification documentation available. | Preferred where long-term availability, extended temperature support, or automotive-grade traceability is required. |
| Nuvoton NPCT650KB0DX | LPC and I²C dual-interface option; TPM 1.2 Level 2; 32-pin QFN; lower pin count but no factory EK certificate chain. | Targets space-constrained designs; lacks pre-provisioned EK certificate hierarchy, requiring post-silicon provisioning. | Selected when board layout density is critical and EK provisioning can be handled in-system. |
Compared with AT97SC3204T-X2MB-00, the SLB9635TT1.2 offers stronger side-channel mitigation and formal certification evidence, while the NPCT650KB0DX trades EK convenience for smaller footprint and interface flexibility - both require evaluation against host I²C timing and firmware stack compatibility.
Availability
AT97SC3204T-X2MB-00 is available at Aetrix Electronics and suitable for PC motherboard design, server platform integrity systems, and industrial embedded control applications requiring stable component supply and documented TPM 1.2 compliance.
Supply support for AT97SC3204T-X2MB-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
Microchip Technology acquired Atmel in 2016 and maintains legacy TPM product support, including documentation, errata, and long-term supply commitments for industrial and enterprise customers.
The AT97SC3204T series belongs to Atmel's Trusted Platform Module family, designed specifically to deliver hardware-rooted trust anchors for PC, server, and embedded systems requiring TCG-compliant cryptographic services and platform attestation.
FAQ
What interface does the AT97SC3204T-X2MB-00 use for host communication?
The AT97SC3204T-X2MB-00 uses a TWI (I²C) interface operating at standard-mode speeds up to 400 kHz. It does not support LPC bus signaling. This interface allows direct connection to microcontrollers or southbridge chips with I²C peripherals, eliminating need for dedicated LPC logic or bridge components in the design.
Does the AT97SC3204T-X2MB-00 include a factory-provisioned Endorsement Key?
Yes, the AT97SC3204T-X2MB-00 includes a factory-provisioned RSA-2048 Endorsement Key (EK) with an associated X.509 certificate chain. This enables immediate remote attestation without requiring in-field key generation or provisioning - a core requirement for Windows Hardware Certification and enterprise device onboarding workflows using the AT97SC3204T-X2MB-00.
Is the AT97SC3204T-X2MB-00 still recommended for new designs?
No, the AT97SC3204T-X2MB-00 is marked "Not Recommended for New Designs" per Atmel-8728D-TPM-AT97SC3204-3204T-Addendum_062014, and has been superseded by the AT97SC3205T. However, Aetrix Electronics continues to support existing designs with full lifecycle availability, obsolescence monitoring, and technical documentation access for the AT97SC3204T-X2MB-00.
What is the operating temperature range of the AT97SC3204T-X2MB-00?
The AT97SC3204T-X2MB-00 is rated for commercial operation from 0°C to 70°C. It is not qualified for industrial temperature range (-40°C to +85°C); that grade is available under ordering code AT97SC3204T-U2MB-10. Thermal derating or extended validation is required if deployed outside the specified commercial range.
What package type is used for the AT97SC3204T-X2MB-00?
The AT97SC3204T-X2MB-00 uses a 40-pin QFN package designated as 40ML1, measuring 6 mm × 6 mm × 0.9 mm with an exposed thermal pad. This package supports automated assembly and provides adequate thermal dissipation for continuous TPM operation under typical host system power constraints.
AT97SC3204T-X2MB-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:
- I2C
- 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)
AT97SC3204T-X2MB-00 FAQ
1.How can I place an order for AT97SC3204T-X2MB-00 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT97SC3204T-X2MB-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 AT97SC3204T-X2MB-00 reliable?
The price and inventory of AT97SC3204T-X2MB-00 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT97SC3204T-X2MB-00 is usually 5 days.
3.What payment methods are accepted for AT97SC3204T-X2MB-00?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT97SC3204T-X2MB-00 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT97SC3204T-X2MB-00?
AT97SC3204T-X2MB-00 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT97SC3204T-X2MB-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 AT97SC3204T-X2MB-00?
For technical support, including AT97SC3204T-X2MB-00 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT97SC3204T-X2MB-00 requirements.
6.How does Aetrix verify that AT97SC3204T-X2MB-00 is sourced from the original manufacturer or authorized distributors?
All AT97SC3204T-X2MB-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 AT97SC3204T-X2MB-00 meets industry standards.
7.What is the process for return or replacement of AT97SC3204T-X2MB-00?
All AT97SC3204T-X2MB-00 units undergo pre-shipment inspection (PSI). If there is an issue with AT97SC3204T-X2MB-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 AT97SC3204T-X2MB-00 part is unused and in its original packaging.
Return procedure for AT97SC3204T-X2MB-00:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT97SC3204T-X2MB-00 Tags
-
CYPD3175-24LQXQ
Infineon Technologies
-
SLB9672VU20FW1523XTMA1
Infineon Technologies
-
SLB9670VQ20FW785XTMA1
Infineon Technologies
-
SLB9672XU20FW1523XTMA1
Infineon Technologies
-
SLB9673XU20FW2613XTMA1
Infineon Technologies
-
CYPD3125-40LQXIT
Infineon Technologies
-
AT97SC3204-U2A1A-20
Microchip Technology
-
AT97SC3204-U2A1A-10
Microchip Technology
-
SLM9670AQ20FW1311XTMA1
Infineon Technologies
-
SLB9672XU20FW1613XTMA1
Infineon Technologies
-
SLB9672AU20FW1613XTMA1
Infineon Technologies
-
SLB9673AU20FW2613XTMA1
Infineon Technologies
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
