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NXP Semiconductors A7102CLTK2/T0BC2XJ
- Part No.:
- A7102CLTK2/T0BC2XJ
- Manufacturer:
- NXP Semiconductors
- Category:
- Application Specific Microcontrollers
- Package:
- 8-VDFN Exposed Pad
- Datasheet:
-
A7102CLTK2/T0BC2XJ.pdf
- Description:
- A7102CLTK2
- Quantity:
- Payment:
- Shipping:
Inventory:4,493
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Product details
Overview
A7102CLTK2/T0BC2XJ from NXP Semiconductors is a Plug & Trust Secure Element IC implementing Java Card OS and preloaded IoT security applet, supporting ECC NIST P-256 key pairs, ECDSA signature/verification, ECDH key agreement, and SCP03 secure channel-designed for root-of-trust provisioning in industrial IoT gateways operating from −40 °C to +90 °C.
For engineers reviewing the A7102CLTK2/T0BC2XJ datasheet, A7102CLTK2/T0BC2XJ pinout, A7102CLTK2/T0BC2XJ application, or A7102CLTK2/T0BC2XJ equivalent, this page delivers verified I²C interface behavior, HVSON8 package mapping, sleep-mode current specs (10 μA deep sleep), cryptographic capability scope, and real-world credential storage use cases without generic claims.
Technical Context
The A7102CLTK2/T0BC2XJ operates as an autonomous secure element using a dedicated MX51 security CPU and on-chip Java Card OS, isolating memory access strictly to fixed applet functions-no direct host memory access permitted. It implements Smartcard I²C (SCI²C) protocol over standard I²C physical layer, compliant with SMBus and ISO/IEC 7816-4 APDU mapping.
It supports dual supply modes (1.8 V and 3.3 V), automatic SLEEP mode entry after 312 ms I²C inactivity, and DEEP SLEEP activation via RST_N low pulse ≥500 μs. Security countermeasures include SPA/DPA protection licensed from Cryptography Research, active shielding, and hardware sensors (HVS, LVS, LTS, HTS, light, glitch).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Interface | I²C slave, Fast-Mode up to 400 kbit/s; SCI²C protocol with 7-bit address 0x48 (default) or 0x49 |
| Operating Temperature | −40 °C to +90 °C ambient - validated for extended industrial environments |
| Cryptographic Engine | ECC NIST P-256 only; 4 protected asymmetric key pairs, 3 public keys, 8×128-bit symmetric secrets |
| Memory | EEPROM with 500,000 write cycles and 25-year data retention at +55 °C |
| Power Consumption | 10 μA max deep sleep current; 40–150 μA sleep mode; 2.45–15.1 mA active (varies by coprocessor) |
| Security Features | SCP03 GP support; monotonic counters (2×32-bit); transport lock; HKDF key derivation; HMAC-SHA256 |
| Package | HVSON8 (SOT909-1), 4×4×0.85 mm, thermal pad recommended grounded |
Pinout & Package
HVSON8 package (SOT909-1), 8-terminal plastic thermal-enhanced very thin small outline; center thermal pad not electrically connected but recommended for PCB grounding.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| I2C_SCL | I²C clock input | Active-low open-drain or push-pull; supports 400 kHz Fast-Mode timing |
| VSS | Ground reference | Primary return path for all digital and analog circuits; connects to PCB ground plane |
| IF0 | Interface activation control | High at power-on selects I²C mode; must be stable ≥500 μs post-POR |
| n.c. | No connection | Internally unconnected terminal; no routing required |
| IF1 | I²C address selection | Determines 8-bit I²C address: IF1=0 → 0x90/0x91; IF1=1 → 0x92/0x93 |
| RST_N | Active-low reset input | Pull low ≥500 μs enters DEEP SLEEP; falling edge on I2C_SDA wakes from SLEEP |
| VCC | Supply voltage input | Accepts 1.62–1.98 V (1V8 mode) or 2.5–3.6 V (3V3 mode); decoupling capacitor required |
| I2C_SDA | I²C bidirectional data line | Open-drain with external pull-up; supports SCI²C command framing and ACK/NACK |
Key Features
| Feature | Design Value |
|---|---|
| Root-of-trust provisioning | Preloaded IoT applet enables zero-touch cloud onboarding with device identity binding at IC level |
| Hardware-enforced isolation | Java Card OS restricts host access to memory and crypto operations-no direct register or RAM exposure |
| Attack-resilient design | Integrated SPA/DPA countermeasures, active shielding, and environmental sensors block physical/logical tampering |
| Low-power security | 10 μA deep sleep current enables battery-powered edge devices with multi-year credential lifetime |
| Secure channel foundation | SCP03 GP-compliant keyset management enables authenticated, encrypted communication with host MCU |
Applications
| Industrial Sensor Authentication | Home Gateway Credential Storage |
|---|---|
Use Scenario: Securing firmware updates and sensor data streams from distributed factory-floor nodes. IC Role / Device Role / Timing Role: Root-of-trust anchor performing ECDSA signature verification and monotonic counter enforcement per update cycle. Use Value: Prevents unauthorized firmware injection by validating signed manifests using embedded NIST P-256 keys-no host-side crypto required. |
Use Scenario: Storing TLS client certificates and private keys for secure cloud MQTT connections in residential gateways. IC Role / Device Role / Timing Role: Tamper-resistant key vault providing HMAC-SHA256 and HKDF for session key derivation during TLS handshake. Use Value: Eliminates plaintext key exposure in flash memory; ensures credentials survive host MCU reboots and firmware corruption. |
| IP Camera Anti-Counterfeiting | Connected Appliance Proof of Origin |
Use Scenario: Verifying OEM authenticity and enabling secure OTA updates in networked surveillance cameras. IC Role / Device Role / Timing Role: Hardware-based proof-of-origin generator using unique 18-byte chip ID and ECDSA-signed challenge-response. Use Value: Blocks cloned hardware by cryptographically binding device identity to cloud enrollment-prevents gray-market resale. |
Use Scenario: Enabling brand-authorized service access and secure remote diagnostics in smart refrigerators and washing machines. IC Role / Device Role / Timing Role: Transport-locked credential store holding symmetric secrets used for mutual authentication with OEM service platforms. Use Value: Ensures only authorized technicians can activate diagnostic modes-prevents bypass of safety interlocks and warranty voiding. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar secure element applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STSAFE-A110S | Supports I²C up to 1 MHz; includes AES-128 coprocessor; no built-in ECC NIST P-256 key generation | Requires host-side ECC implementation for P-256 signing; better suited for symmetric-key-heavy use cases | Select when higher I²C speed or AES acceleration outweighs need for on-device ECDSA key pair generation |
| Infineon SLB9670 | TPM 2.0 compliant; SPI interface only; larger QFN32 package; supports RSA-2048 and SHA-256 | Targets PC/server-class trust anchors; incompatible with I²C-only host designs and space-constrained IoT PCBs | Select only for TPM 2.0–mandated systems requiring RSA-based attestation-not for resource-constrained edge devices |
Compared with STSAFE-A110S and SLB9670, the A7102CLTK2/T0BC2XJ uniquely delivers pre-provisioned P-256 ECDSA in an HVSON8 footprint with sub-10 μA deep sleep-enabling compact, ultra-low-power IoT devices requiring chip-to-cloud identity binding without host crypto overhead.
Availability
A7102CLTK2/T0BC2XJ is available at Aetrix Electronics and suitable for industrial sensor networks, IP camera security modules, and home gateway credential storage requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for A7102CLTK2/T0BC2XJ 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
NXP Semiconductors is a global semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and IoT markets, with core expertise in embedded security and contactless technologies.
The A71CH product line delivers plug-and-play secure elements targeting rapid integration into resource-constrained edge devices-designed specifically for zero-touch cloud onboarding, anti-counterfeiting, and PKI-based device identity management.
FAQ
What is the default I²C address of the A7102CLTK2/T0BC2XJ and how is it selected?
The A7102CLTK2/T0BC2XJ defaults to 7-bit I²C address 0x48 (8-bit 0x90) when IF1 = 0 at power-on, or 0x49 (8-bit 0x92) when IF1 = 1. Address selection occurs automatically during power-on-reset based on the logic level held stable on IF1 for ≥500 μs. The A7102CLTK2/T0BC2XJ does not support software-configurable addressing-hardware pin state determines the address at boot.
Does the A7102CLTK2/T0BC2XJ support both 1.8 V and 3.3 V operation, and what are the implications for host interface design?
Yes, the A7102CLTK2/T0BC2XJ supports dual supply modes: 1.62–1.98 V (1V8) and 2.5–3.6 V (3V3). Host I²C lines must be level-shifted if the MCU operates outside the A7102CLTK2/T0BC2XJ's VDD range-no internal level translation is provided. Input thresholds scale with VDD (e.g., VIH = 0.7×VDD), so pull-up resistors must connect to the A7102CLTK2/T0BC2XJ's VCC rail, not the host's.
How does the A7102CLTK2/T0BC2XJ enforce secure boot and prevent unauthorized firmware execution?
The A7102CLTK2/T0BC2XJ does not perform secure boot for external MCUs-it serves as a companion secure element. Its security model enforces integrity via immutable applet logic, protected key storage, and SCP03-secured channels. Host MCU boot validation must be implemented externally; the A7102CLTK2/T0BC2XJ provides cryptographic services (e.g., signature verification of host firmware images) upon authenticated request.
Can the A7102CLTK2/T0BC2XJ's monotonic counters be reset, and what happens when they overflow?
No, the A7102CLTK2/T0BC2XJ's two 32-bit monotonic counters cannot be reset or decremented-only incremented via protected API calls. Upon reaching 0xFFFFFFFF, they wrap to 0x00000000 and continue counting. This behavior is intentional for anti-rollback enforcement; applications must detect overflow in host logic if strict monotonicity beyond 32 bits is required.
Is the A7102CLTK2/T0BC2XJ certified to Common Criteria or FIPS standards, and what documentation is available for compliance validation?
The A7102CLTK2/T0BC2XJ is not individually certified to Common Criteria or FIPS 140-2/3. It inherits security assurance from the A71CH platform, which holds AVA_VAN.5 and ASE_TSP.1 evaluations under Common Criteria EAL5+ (certification ID: CCEVS-VR-VID10820). Full certification reports and evaluation evidence are available under NDA from NXP; Aetrix Electronics provides traceable lot documentation and test summaries upon request.
A7102CLTK2/T0BC2XJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- A71CL
- Package/Case:
- 8-VDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Programmable:
- -
- Applications:
- Security
- Core Processor:
- -
- Program Memory Type:
- -
- Controller Series:
- A7102CLTK2
- RAM Size:
- -
- Interface:
- I2C
- Number of I/O:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -40°C ~ 90°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-HVSON (4x4)
A7102CLTK2/T0BC2XJ FAQ
1.How can I place an order for A7102CLTK2/T0BC2XJ through Aetrix?
Please submit a Request for Quotation (RFQ) for A7102CLTK2/T0BC2XJ 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 A7102CLTK2/T0BC2XJ reliable?
The price and inventory of A7102CLTK2/T0BC2XJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for A7102CLTK2/T0BC2XJ is usually 5 days.
3.What payment methods are accepted for A7102CLTK2/T0BC2XJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for A7102CLTK2/T0BC2XJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for A7102CLTK2/T0BC2XJ?
A7102CLTK2/T0BC2XJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your A7102CLTK2/T0BC2XJ 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 A7102CLTK2/T0BC2XJ?
For technical support, including A7102CLTK2/T0BC2XJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your A7102CLTK2/T0BC2XJ requirements.
6.How does Aetrix verify that A7102CLTK2/T0BC2XJ is sourced from the original manufacturer or authorized distributors?
All A7102CLTK2/T0BC2XJ 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 A7102CLTK2/T0BC2XJ meets industry standards.
7.What is the process for return or replacement of A7102CLTK2/T0BC2XJ?
All A7102CLTK2/T0BC2XJ units undergo pre-shipment inspection (PSI). If there is an issue with A7102CLTK2/T0BC2XJ, 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 A7102CLTK2/T0BC2XJ part is unused and in its original packaging.
Return procedure for A7102CLTK2/T0BC2XJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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