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NXP Semiconductors A7102CLTK2/T0BC2AJ
- Part No.:
- A7102CLTK2/T0BC2AJ
- Manufacturer:
- NXP Semiconductors
- Category:
- Application Specific Microcontrollers
- Package:
- 8-VDFN Exposed Pad
- Datasheet:
-
A7102CLTK2/T0BC2AJ.pdf
- Description:
- A7102CLTK2
- Quantity:
- Payment:
- Shipping:
Inventory:3,652
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Product details
Overview
A7102CLTK2/T0BC2AJ 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 secure cloud onboarding of industrial edge devices operating from −40 °C to +90 °C.
For engineers reviewing the A7102CLTK2/T0BC2AJ datasheet, A7102CLTK2/T0BC2AJ pinout, A7102CLTK2/T0BC2AJ application, or A7102CLTK2/T0BC2AJ 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 provisioning use cases without inference or generic claims.
Technical Context
The A7102CLTK2/T0BC2AJ operates as an autonomous secure co-processor using a dedicated MX51 security CPU and Java Card OS, isolating all cryptographic operations and memory access behind fixed applet logic-no direct host memory access permitted. It implements Smartcard I²C (SCI²C) protocol over standard I²C physical layer, with dual I²C slave addresses (0x90/0x92) selectable via IF0/IF1 pins at power-on.
It supports two voltage modes: 3.3 V (2.5–3.6 V) and 1.8 V (1.62–1.98 V), enabling integration into battery-powered and mains-powered systems. Security enforcement includes hardware-based SPA/DPA countermeasures licensed from Cryptography Research, active shielding, and monotonic counters (2×32-bit) for anti-rollback protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Interface | I²C slave, Fast-Mode up to 400 kHz; SCI²C protocol compliant with ISO/IEC 7816-4 APDU mapping |
| Operating Temp | −40 °C to +90 °C ambient - qualified for industrial edge and automotive under-hood environments |
| Crypto Engine | ECC NIST P-256 only; supports 4 key pairs, 3 public keys, 8×128-bit symmetric secrets, ECDSA/ECDH, HMAC-SHA256 |
| Memory | EEPROM: 500,000 write cycles, 25-year data retention at +55 °C; GP storage: 128×32-byte segments |
| Power Modes | SLEEP mode: 45–150 μA (25 °C); DEEP SLEEP: ≤10 μA (25 °C/90 °C) with RST_N held low ≥500 μs |
| Security Features | SCP03 GP support, transport lock, freezing credentials (OTP behavior), unique 18-byte chip ID, monotonic counters |
| Package | HVSON8 (SOT909-1), 4×4×0.85 mm, thermal pad recommended grounded; no internal connection |
Pinout & Package
HVSON8 package (SOT909-1), 4 mm × 4 mm × 0.85 mm body, 8-terminal no-lead outline. Thermal pad is unconnected but recommended to be soldered to PCB ground plane for thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| I2C_SCL | I²C clock input | Open-drain or push-pull compatible; requires external pull-up; defines timing for SCI²C frame synchronization |
| VSS | Ground reference | Primary return path for all digital and analog circuits; must be low-impedance connection to system GND |
| IF0 | Interface activation control | High at power-on selects default I²C address 0x90 (read 0x91); stable ≥500 μs post-POR required |
| n.c. | No connection | Internally unconnected; may be left floating or tied to GND for mechanical stability |
| IF1 | I²C address selection | High at power-on enables alternate I²C address 0x92 (read 0x93); used for multi-device bus configuration |
| RST_N | Active-low reset input | Pulling low ≥40 μs exits SLEEP; ≥500 μs enters DEEP SLEEP; internal resistive pull-down present |
| VCC | Supply voltage input | Accepts 1.62–1.98 V (1V8 mode) or 2.5–3.6 V (3V3 mode); decoupling capacitor mandatory near pin |
| I2C_SDA | I²C bidirectional data line | Open-drain operation per SCI²C; supports falling-edge wake-up from SLEEP mode |
Key Features
| Feature | Design Value |
|---|---|
| Root-of-trust provisioning | Preloaded IoT applet enables zero-touch credential injection and secure bootchain anchoring at IC level |
| Autonomous security execution | Java Card OS + fixed applet enforces strict memory isolation-host cannot read private keys or modify applet state |
| Dual-voltage operation | Supports both 1.8 V and 3.3 V I/O domains, allowing seamless integration into mixed-voltage MCU platforms |
| Hardware attack resistance | Integrated SPA/DPA countermeasures, active shielding, glitch detection, and temperature/voltage sensors per NXP patent license |
| Secure channel foundation | SCP03 GP-compliant keyset (3×AES128) enables authenticated, encrypted communication with host without exposing keys |
| Field-programmable lifecycle | Transport lock, credential freezing (OTP), and monotonic counters enable secure firmware updates and anti-rollback enforcement |
Applications
| Industrial Edge Device Onboarding | IP Camera Cloud Authentication |
|---|---|
Use Scenario: Secure commissioning of factory-deployed PLCs and gateways into AWS IoT Core or Azure IoT Hub. IC Role / Device Role / Timing Role: Root-of-trust anchor performing ECDSA signature of device identity and TLS handshake keys. Use Value: Eliminates manual certificate injection; enables automated, auditable, and tamper-evident device enrollment at scale. |
Use Scenario: Enabling TLS 1.2 mutual authentication between IP cameras and cloud video analytics services. IC Role / Device Role / Timing Role: Secure element storing private key and signing challenge-response during TLS handshake. Use Value: Prevents cloning and unauthorized streaming by binding camera identity to cryptographically attested hardware. |
| Home Gateway Key Protection | Connected Appliance Anti-Counterfeiting |
Use Scenario: Protecting Wi-Fi credentials and Zigbee/Z-Wave network keys in residential smart home hubs. IC Role / Device Role / Timing Role: Protected storage and runtime decryption of symmetric secrets used for local mesh encryption. Use Value: Prevents extraction of network keys via physical probing or firmware dump, preserving ecosystem integrity. |
Use Scenario: Verifying authenticity of replacement parts (e.g., washing machine drum modules) before firmware update. IC Role / Device Role / Timing Role: Storing manufacturer-signed digital certificates and validating signatures during part initialization. Use Value: Blocks counterfeit components by enforcing cryptographic proof of origin before enabling critical functions. |
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 ECC P-256 and RSA-2048; uses proprietary ST crypto API instead of Java Card OS; no SCP03 GP support | Targets STMicroelectronics MCU ecosystems; lacks built-in IoT applet; requires custom host-side middleware | Choose when integrating with STM32 hosts and requiring RSA flexibility over standardized Java Card tooling |
| Infineon SLB9670 | TPM 2.0 compliant; supports SHA-256, RSA-2048, ECC P-256; larger footprint (QFN32); requires SPI interface | Designed for PC/server-class trusted platform modules; not optimized for ultra-low-power edge nodes or I²C-constrained layouts | Choose for full TPM 2.0 compliance in gateway-class devices where SPI bandwidth and board space permit |
Compared with STSAFE-A110 and SLB9670, the A7102CLTK2/T0BC2AJ delivers faster design-in via Java Card tooling and preloaded IoT applet, lower power in deep sleep (≤10 μA), and compact HVSON8 packaging-making it optimal for resource-constrained, battery-aware industrial and consumer edge nodes requiring standardized secure provisioning.
Availability
A7102CLTK2/T0BC2AJ is available at Aetrix Electronics and suitable for industrial edge onboarding, IP camera authentication, and connected appliance anti-counterfeiting requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for A7102CLTK2/T0BC2AJ 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 deep expertise in embedded security and trusted execution environments.
The A71CH product line delivers plug-and-play secure elements targeting rapid, standards-compliant implementation of chip-to-cloud trust in resource-constrained edge devices-designed specifically for zero-touch provisioning and field-upgradeable security.
FAQ
What is the operating temperature range of the A7102CLTK2/T0BC2AJ?
The A7102CLTK2/T0BC2AJ is rated for −40 °C to +90 °C ambient operation, qualifying it for industrial edge, automotive under-hood, and outdoor-connected device applications. This specification is confirmed in Table 5 and Section 13 of the official NXP datasheet Rev. 1.2, and applies specifically to the A7102 variant denoted by the '2' in the part number.
Does the A7102CLTK2/T0BC2AJ support both 1.8 V and 3.3 V operation?
Yes, the A7102CLTK2/T0BC2AJ supports dual-voltage operation: 1.62–1.98 V (1V8 mode) and 2.5–3.6 V (3V3 mode), as specified in Table 13 of the datasheet. Voltage mode is auto-detected at power-on; no configuration register setting is required. Both modes maintain full cryptographic functionality and timing compliance.
What I²C addresses does the A7102CLTK2/T0BC2AJ use?
The A7102CLTK2/T0BC2AJ supports two 8-bit I²C slave addresses: 0x90 (read 0x91) and 0x92 (read 0x93), selected by the logic states of IF0 and IF1 pins at power-on-reset, as defined in Table 8. The default address after POR depends on pin configuration and is not fixed-designers must set IF0/IF1 per application requirements.
How does the A7102CLTK2/T0BC2AJ enter deep sleep mode?
The A7102CLTK2/T0BC2AJ enters deep sleep mode when RST_N is held low for ≥500 μs, reducing supply current to ≤10 μA. This is distinct from SLEEP mode (entered automatically after 312 ms I²C inactivity). To exit deep sleep, RST_N must be released to logic high; no I²C activity or reset pulse is required beyond that transition.
Is the A7102CLTK2/T0BC2AJ preprogrammed with cryptographic keys?
No, the A7102CLTK2/T0BC2AJ shipped as "customer programmable" (per Table 3) contains no pre-provisioned keys. All 4 ECC key pairs, 3 public keys, and 8 symmetric secrets are unset and unlocked by default. Keys must be injected securely via SCP03 channel or plain injection mode-no factory-loaded credentials exist on this variant.
A7102CLTK2/T0BC2AJ 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/T0BC2AJ FAQ
1.How can I place an order for A7102CLTK2/T0BC2AJ through Aetrix?
Please submit a Request for Quotation (RFQ) for A7102CLTK2/T0BC2AJ 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/T0BC2AJ reliable?
The price and inventory of A7102CLTK2/T0BC2AJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for A7102CLTK2/T0BC2AJ is usually 5 days.
3.What payment methods are accepted for A7102CLTK2/T0BC2AJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for A7102CLTK2/T0BC2AJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for A7102CLTK2/T0BC2AJ?
A7102CLTK2/T0BC2AJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your A7102CLTK2/T0BC2AJ 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/T0BC2AJ?
For technical support, including A7102CLTK2/T0BC2AJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your A7102CLTK2/T0BC2AJ requirements.
6.How does Aetrix verify that A7102CLTK2/T0BC2AJ is sourced from the original manufacturer or authorized distributors?
All A7102CLTK2/T0BC2AJ 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/T0BC2AJ meets industry standards.
7.What is the process for return or replacement of A7102CLTK2/T0BC2AJ?
All A7102CLTK2/T0BC2AJ units undergo pre-shipment inspection (PSI). If there is an issue with A7102CLTK2/T0BC2AJ, 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/T0BC2AJ part is unused and in its original packaging.
Return procedure for A7102CLTK2/T0BC2AJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
A7102CLTK2/T0BC2AJ Tags
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