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NXP Semiconductors A7101CLTK2/T0BC2WJ
- Part No.:
- A7101CLTK2/T0BC2WJ
- Manufacturer:
- NXP Semiconductors
- Category:
- Application Specific Microcontrollers
- Package:
- -
- Datasheet:
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A7101CLTK2/T0BC2WJ.pdf
- Description:
- RF MOSFET
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Product details
Overview
A7101CLTK2/T0BC2WJ from NXP Semiconductors is a Plug & Trust Secure Element IC implementing Java Card OS and preloaded IoT security applet, supporting I²C Fast-Mode (400 kbit/s), ECC NIST P-256 key pair management (4×), ECDSA signature/verification, ECDH key agreement, and 2×32-bit monotonic counters - deployed in secure cloud onboarding for industrial sensors and IP cameras.
For engineers reviewing the A7101CLTK2/T0BC2WJ datasheet, A7101CLTK2/T0BC2WJ pinout, A7101CLTK2/T0BC2WJ application, or A7101CLTK2/T0BC2WJ equivalent, this page delivers verified package mapping (HVSON8, SOT909-1), confirmed I²C address options (0x90/0x92), operational temperature range (−25 °C to +85 °C), sleep current (45 μA typ.), and cryptographic feature alignment with SCP03 GP and HKDF SHA256.
Technical Context
The A7101CLTK2/T0BC2WJ integrates a dedicated MX51 security CPU and on-chip Java Card OS, enabling autonomous execution of IoT applets without host OS dependency. It enforces systematic authentication via protected access storage and supports both 1.8 V and 3.3 V supply modes with separate DC/AC timing specs.
Its Smartcard I²C (SCI²C) protocol layer maps ISO/IEC 7816-4 APDUs over SMBus-based I²C, using fixed 7-bit addresses (0x48/0x49) and configurable boot-time address selection via IF0/IF1 pins. Security countermeasures include hardware-level SPA/DPA protection licensed from Cryptography Research.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Interface | I²C slave, Fast-Mode up to 400 kbit/s; SCI²C-compliant with ISO/IEC 7816-4 APDU mapping |
| Operating Temp | −25 °C to +85 °C - validated for home gateways and industrial edge nodes |
| Crypto Engine | ECC NIST P-256 only; 4× key pairs, 3× public keys, 8×128-bit symmetric secrets, 2×32-bit monotonic counters |
| Memory | EEPROM: 500,000 write cycles, 25-year data retention at +55 °C |
| Power Modes | SLEEP mode: 45 μA typical; DEEP SLEEP: ≤10 μA - activated by RST_N low ≥500 μs |
| Supply Voltage | Supports dual-rail operation: 1.62–1.98 V (1V8 mode) or 2.5–3.6 V (3V3 mode) |
| Security Licensing | SPA/DPA countermeasures covered under Cryptography Research Incorporated patent license |
Pinout & Package
HVSON8 package (SOT909-1), 4 × 4 × 0.85 mm body, thermal pad unconnected but recommended grounded for thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| I2C_SCL | I²C clock input | Active HIGH; supports 400 kHz Fast-Mode; internal pull-down disabled |
| VSS | Ground reference | Primary return path for all digital and analog circuits; must be low-impedance |
| IF0 | Interface activation control | Apply HIGH at power-on to enable I²C interface; determines default I²C address |
| n.c. | No connection | Unused terminal; no internal bond; electrically isolated |
| IF1 | I²C address selection | Configures 8-bit I²C address: 0x90/0x91 (IF0=1, IF1=1) or 0x92/0x93 (IF0=1, IF1=1) |
| RST_N | Active-low reset input | Pull LOW ≥40 μs for normal reset; ≥500 μs to enter DEEP SLEEP mode |
| VCC | Power supply input | Accepts 1.62–1.98 V or 2.5–3.6 V; bypass capacitor required per layout guidelines |
| I2C_SDA | I²C bidirectional data line | Open-drain output with external pull-up; supports ACK/NACK and arbitration |
Key Features
| Feature | Design Value |
|---|---|
| Root-of-trust provisioning | Preloaded IoT applet enables zero-touch credential injection and secure channel (SCP03) setup out-of-box |
| Hardware-enforced isolation | Java Card OS restricts direct memory access; all key operations execute within secured applet context |
| Transport lock mechanism | Module can be permanently locked to prevent unauthorized reprogramming or credential extraction |
| Monotonic counter enforcement | Two independent 32-bit counters support anti-replay and firmware update validation |
| HMAC-SHA256 acceleration | One-shot or sequential calculation supported; used for secure boot integrity verification |
Applications
| Secure Cloud Onboarding | Device Authentication |
|---|---|
Use Scenario: Connecting constrained IoT sensors to AWS IoT Core or Azure IoT Hub during factory commissioning. IC Role / Device Role / Timing Role: Secure Element performs TLS handshake key exchange and X.509 certificate signing using onboard ECC P-256 keys. Use Value: Eliminates need for external secure programming stations; reduces time-to-cloud by >70% versus software-only PKI. |
Use Scenario: Verifying authenticity of replacement modules in industrial PLCs before firmware update. IC Role / Device Role / Timing Role: Acts as trusted identity anchor; signs challenge-response payloads using ECDSA with frozen credentials. Use Value: Prevents counterfeit component insertion; ensures only OEM-signed firmware executes on target hardware. |
| Anti-Counterfeiting | Data Integrity Protection |
Use Scenario: Embedding in smart home appliances (e.g., HVAC controllers) to validate firmware origin. IC Role / Device Role / Timing Role: Stores immutable device ID (18-byte) and signed public key; verifies firmware signature prior to boot. Use Value: Blocks unauthorized firmware modifications; enables brand protection across global supply chain. |
Use Scenario: Securing configuration data stored in external flash memory of IP cameras. IC Role / Device Role / Timing Role: Generates HMAC-SHA256 over critical settings; validates integrity before loading into runtime RAM. Use Value: Mitigates tampering with camera resolution, motion detection thresholds, or network credentials. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar secure element applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STSAFE-A110 | Supports I²C up to 1 MHz; includes AES-128 coprocessor; lacks monotonic counters | Optimized for high-throughput secure boot; not certified for SCP03 GP compliance | Select when higher I²C bandwidth and AES acceleration outweigh monotonic counter needs |
| Infineon SLB9670 | TPM 2.0 compliant; SPI interface only; requires host-side TPM stack integration | Targets PC-class platforms with UEFI firmware; unsuitable for resource-constrained MCU hosts | Select for Windows/Linux systems requiring standardized TPM interfaces and attestation services |
Compared with STSAFE-A110 and SLB9670, the A7101CLTK2/T0BC2WJ uniquely combines Java Card OS, SCP03 GP support, monotonic counters, and dual-voltage I²C in HVSON8 - making it optimal for embedded Linux and RTOS-based IoT endpoints needing field-upgradable root-of-trust.
Availability
A7101CLTK2/T0BC2WJ is available at Aetrix Electronics and suitable for secure cloud onboarding, device authentication, anti-counterfeiting, and data integrity protection requiring stable component supply across industrial, consumer, and infrastructure markets.
Supply support for A7101CLTK2/T0BC2WJ 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 applications, with over 30 years of embedded security IP development.
The A71CH product line delivers chip-level root-of-trust for resource-constrained devices, designed specifically to simplify secure cloud onboarding and protect against physical/logical attacks in battery-powered and industrial edge deployments.
FAQ
What is the I²C address configuration for A7101CLTK2/T0BC2WJ?
The A7101CLTK2/T0BC2WJ supports two 8-bit I²C addresses: 0x90 (read 0x91) and 0x92 (read 0x93), selected at power-on via IF0 and IF1 pin states. IF0 must be HIGH to enable I²C; IF1 determines address selection. Default after POR depends on boot pin voltage levels held for ≥500 μs.
Does A7101CLTK2/T0BC2WJ support both 1.8 V and 3.3 V operation?
Yes, A7101CLTK2/T0BC2WJ operates in dual-voltage modes: 1.62–1.98 V (1V8 mode) and 2.5–3.6 V (3V3 mode). Current consumption differs per mode - e.g., ECC coprocessor draws 7.5 mA typ. in 1V8 mode vs. 15.1 mA typ. in 3V3 mode - and timing specs are mode-specific.
How does transport lock work on A7101CLTK2/T0BC2WJ?
The A7101CLTK2/T0BC2WJ implements a one-time programmable transport lock that disables further credential injection or applet updates. Once activated, the module enters permanent "LOCKED" state - preventing reprogramming, key extraction, or configuration changes - ensuring supply chain integrity.
What cryptographic algorithms are supported by A7101CLTK2/T0BC2WJ?
A7101CLTK2/T0BC2WJ supports ECDSA signature/verification, ECDH/ECDH-E key agreement, HMAC-SHA256 (one-shot or sequential), HKDF key derivation, and AES-128 for SCP03 secure channel. All ECC operations are limited to NIST P-256 curve; no RSA or SM2 support is provided.
Is the EEPROM in A7101CLTK2/T0BC2WJ field-programmable?
Yes, the EEPROM in A7101CLTK2/T0BC2WJ is field-programmable with guaranteed 500,000 write cycles and 25-year data retention at +55 °C. Write endurance and retention are validated per JEDEC JESD22-A117; erase+program time is 2.7 ms typical.
A7101CLTK2/T0BC2WJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- -
- Applications:
- -
- Core Processor:
- -
- Program Memory Type:
- -
- Controller Series:
- -
- RAM Size:
- -
- Interface:
- -
- Number of I/O:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
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A7101CLTK2/T0BC2WJ FAQ
1.How can I place an order for A7101CLTK2/T0BC2WJ through Aetrix?
Please submit a Request for Quotation (RFQ) for A7101CLTK2/T0BC2WJ 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 A7101CLTK2/T0BC2WJ reliable?
The price and inventory of A7101CLTK2/T0BC2WJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for A7101CLTK2/T0BC2WJ is usually 5 days.
3.What payment methods are accepted for A7101CLTK2/T0BC2WJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for A7101CLTK2/T0BC2WJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for A7101CLTK2/T0BC2WJ?
A7101CLTK2/T0BC2WJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your A7101CLTK2/T0BC2WJ 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 A7101CLTK2/T0BC2WJ?
For technical support, including A7101CLTK2/T0BC2WJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your A7101CLTK2/T0BC2WJ requirements.
6.How does Aetrix verify that A7101CLTK2/T0BC2WJ is sourced from the original manufacturer or authorized distributors?
All A7101CLTK2/T0BC2WJ 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 A7101CLTK2/T0BC2WJ meets industry standards.
7.What is the process for return or replacement of A7101CLTK2/T0BC2WJ?
All A7101CLTK2/T0BC2WJ units undergo pre-shipment inspection (PSI). If there is an issue with A7101CLTK2/T0BC2WJ, 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 A7101CLTK2/T0BC2WJ part is unused and in its original packaging.
Return procedure for A7101CLTK2/T0BC2WJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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