NXP Semiconductors A7102CGUK/T0B0494Z
- Part No.:
- A7102CGUK/T0B0494Z
- Manufacturer:
- NXP Semiconductors
- Category:
- Application Specific Microcontrollers
- Package:
- 12-UFBGA, WLCSP
- Datasheet:
-
A7102CGUK/T0B0494Z.pdf
- Description:
- AU10TICS
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
A7102CGUK/T0B0494Z 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, 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 A7102CGUK/T0B0494Z datasheet, A7102CGUK/T0B0494Z pinout, A7102CGUK/T0B0494Z application, or A7102CGUK/T0B0494Z equivalent, this page delivers verified electrical specs, WLCSP12 package mapping, I²C Fast-Mode (400 kbit/s) timing, sleep current (10 μA deep sleep), and cryptographic feature alignment with cloud onboarding, device authentication, and anti-counterfeiting use cases.
Technical Context
The A7102CGUK/T0B0494Z integrates a dedicated MX51 security CPU and Java Card OS to isolate credential storage from host MCU access-only permitting key operations via APDU commands over Smartcard I²C (SCI²C) protocol. It enforces systematic authentication and supports HKDF key derivation using symmetric secrets.
Its dual-voltage operation (1.62–1.98 V or 2.5–3.6 V) enables battery-powered edge devices, while hardware countermeasures-including active shielding, glitch detection, and DPA/SPA protection licensed from Cryptography Research-defend against physical and logical attacks without host software involvement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Interface | I²C slave mode, Fast-Mode up to 400 kbit/s using SCI²C protocol per ISO/IEC 7816-4 mapping |
| Cryptographic Engine | Hardware-accelerated ECC NIST P-256 for ECDSA signing/verification and ECDH key agreement |
| Secure Storage | EEPROM with ≥500,000 write cycles and ≥25-year data retention at +55 °C |
| Power Consumption | 10 μA max deep sleep current (RST_N = 0 V); 40–80 μA typical sleep current at 25 °C |
| Operating Temperature | −40 °C to +90 °C ambient range, qualified for industrial-grade deployment |
| Security Licensing | Patent-licensed SPA/DPA countermeasures covering both hardware and OS-level protections |
| Unique Identifier | 18-byte immutable chip ID accessible only via authenticated secure channel |
Pinout & Package
Package: WLCSP12 (wafer-level chip-scale package, 12 bumps, 0.5 mm ball pitch, no leadframe).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | n.c. | Not internally connected; usable for PCB routing |
| A2 | VSS | Ground reference for all digital and analog circuitry |
| A3 | I2C_SCL | Open-drain I²C clock input; requires external pull-up |
| A4 | I2C_SDA | Open-drain I²C bidirectional data line; requires external pull-up |
| B1 | n.c. | Not internally connected; usable for PCB routing |
| B2 | VCC | Primary power supply input (1.62–1.98 V or 2.5–3.6 V) |
| B3 | n.c. | Not internally connected; usable for PCB routing |
| B4 | IF1 | I²C address selection: sets 8-bit address to 0x92/0x93 when high |
| C1 | n.c. | Not internally connected; usable for PCB routing |
| C2 | i.c. | Internally connected to ground; must be externally tied to VSS |
| C3 | RST_N | Active-low reset input; >500 μs low pulse enters deep sleep mode |
| C4 | IF0 | Interface activation control: high at power-on selects I²C mode |
Key Features
| Feature | Design Value |
|---|---|
| Root-of-Trust Provisioning | Preloaded IoT applet enables zero-touch credential injection and transport lock mechanism for OEM-controlled key lifecycle |
| Secure Channel Support | SCP03 GP-compliant secure channel with three AES128 keys for encrypted APDU exchange |
| Monotonic Counter Protection | Two 32-bit hardware monotonic counters prevent rollback attacks during firmware updates or attestation |
| Key Isolation Architecture | Java Card OS enforces strict memory isolation-host cannot directly read private keys or internal state |
| Low-Power Security | Deep sleep mode draws ≤10 μA while preserving secure state; wake-up latency <10 μs via SDA edge trigger |
Applications
| Industrial Edge Gateway Authentication | IP Camera Anti-Counterfeiting |
|---|---|
Use Scenario: Securing factory-floor gateways connecting legacy PLCs to AWS IoT Core via TLS mutual authentication. IC Role / Device Role / Timing Role: A7102CGUK/T0B0494Z stores device identity keys and performs ECDSA signing for X.509 certificate enrollment. Use Value: Eliminates manual key injection; prevents cloning via unique chip ID and transport lock enforcement. |
Use Scenario: Verifying authenticity of network cameras deployed in smart city infrastructure. IC Role / Device Role / Timing Role: A7102CGUK/T0B0494Z holds manufacturer-signed public key and validates firmware signatures at boot. Use Value: Blocks counterfeit units by binding hardware identity to signed certificates stored in protected EEPROM. |
| Home Appliance Secure Commissioning | Connected Sensor Node Key Management |
Use Scenario: Enabling secure Wi-Fi onboarding of smart thermostats using QR-code-based BLE provisioning. IC Role / Device Role / Timing Role: A7102CGUK/T0B0494Z generates ephemeral ECDH keys and signs commissioning tokens. Use Value: Prevents man-in-the-middle during setup by cryptographically binding device identity to session keys. |
Use Scenario: Protecting sensor data integrity in battery-powered environmental monitoring nodes. IC Role / Device Role / Timing Role: A7102CGUK/T0B0494Z signs sensor readings with ECDSA before transmission to edge aggregator. Use Value: Ensures data provenance and tamper evidence with hardware-backed signatures consuming <15 mA during ECC ops. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar secure element applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STSAFE-A110WLC/2 | Supports I²C up to 1 MHz; uses ST's proprietary secure OS instead of Java Card; lacks SCP03 support | Targets higher-throughput provisioning but requires custom host stack integration | Select when needing faster I²C throughput and willingness to adopt non-JavaCard ecosystem |
| Infineon SLB9670TT2.0 | TPM 2.0 compliant; larger footprint (QFN32); supports RSA-2048 and SHA-384; no ECC P-256 optimization | Designed for PC/server-class trusted platform modules-not optimized for ultra-low-power IoT endpoints | Select for full TPM 2.0 compliance in gateway-class hardware where size and sleep current are secondary |
Compared with STSAFE-A110WLC/2 and SLB9670TT2.0, the A7102CGUK/T0B0494Z delivers superior power efficiency (10 μA deep sleep), native SCP03 support for standardized secure channels, and Java Card interoperability-making it optimal for resource-constrained, cloud-connected industrial sensors and gateways requiring field-proven IoT security applets.
Availability
A7102CGUK/T0B0494Z is available at Aetrix Electronics and suitable for industrial edge gateways, IP camera authentication systems, and home appliance secure commissioning requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for A7102CGUK/T0B0494Z 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-trust secure elements targeting rapid design-in for cloud-connected devices-emphasizing zero-touch provisioning, hardware-rooted identity, and resistance to side-channel and physical attacks.
FAQ
What is the primary security function of the A7102CGUK/T0B0494Z?
The A7102CGUK/T0B0494Z serves as a hardware-rooted secure element that provides cryptographic key generation, storage, and usage isolation via its Java Card OS and preloaded IoT applet. It enables ECDSA signing, ECDH key agreement, and SCP03-secured communication-ensuring device identity, data integrity, and anti-cloning for cloud-connected endpoints. Its architecture prevents host MCU access to private keys, making A7102CGUK/T0B0494Z essential for establishing chip-to-cloud trust.
Does the A7102CGUK/T0B0494Z support both 1.8 V and 3.3 V operation?
Yes, the A7102CGUK/T0B0494Z supports dual-voltage operation: 1.62–1.98 V (1V8 mode) and 2.5–3.6 V (3V3 mode). In 1V8 mode, typical active current is 2.45 mA (no coprocessor) and 7.5 mA (ECC active); in 3V3 mode, active current reaches 15.1 mA during ECC operations. Both modes maintain full cryptographic functionality and operate across −40 °C to +90 °C, making A7102CGUK/T0B0494Z suitable for battery-powered and mains-powered industrial designs.
How does the A7102CGUK/T0B0494Z enter deep sleep mode, and what is its current draw?
The A7102CGUK/T0B0494Z enters deep sleep mode when RST_N is held low for more than 500 μs-switching off internal power while keeping I/O pads in high-Z state. Deep sleep current is guaranteed ≤10 μA at both 25 °C and 90 °C, enabling multi-year battery life in intermittent-sensing applications. Wake-up occurs upon RST_N release to logic high. This behavior is fully documented in the A7102CGUK/T0B0494Z datasheet Section 7.5.2 and validated across temperature extremes.
What I²C addresses does the A7102CGUK/T0B0494Z support, and how are they selected?
The A7102CGUK/T0B0494Z supports two 8-bit I²C addresses: 0x90/0x91 (default after power-on-reset with IF0=1, IF1=1) and 0x92/0x93 (when IF1=1 at startup). Address selection is controlled by the IF1 pin state during power-on initialization, as defined in Table 8 of the datasheet. The device implements Smartcard I²C (SCI²C) protocol over standard SMBus physical layer, ensuring compatibility with common MCU I²C peripherals without requiring special controller firmware.
Is the A7102CGUK/T0B0494Z pin-compatible with other A71CH variants in WLCSP12 package?
Yes, all A71CH variants in WLCSP12 package-including A7101CHUK and A7102CHUK-share identical pinout, ball mapping, and mechanical footprint per Figure 5 and Table 10 of the datasheet. The A7102CGUK/T0B0494Z differs only in operational temperature rating (−40 °C to +90 °C vs. −25 °C to +85 °C for A7101) and silicon revision, not in pin function or layout. This allows direct substitution in existing WLCSP12 designs without PCB changes when extended temperature range is required.
A7102CGUK/T0B0494Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 12-UFBGA, WLCSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Programmable:
- Not Verified
- Applications:
- Authentication
- Core Processor:
- MX51
- Program Memory Type:
- EEPROM (20kB)
- Controller Series:
- A710x
- RAM Size:
- -
- Interface:
- I2C
- Number of I/O:
- -
- Voltage - Supply:
- 1.62V ~ 3.6V
- Operating Temperature:
- -40°C ~ 90°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-WLCSP (2.06x2.02)
A7102CGUK/T0B0494Z FAQ
1.How can I place an order for A7102CGUK/T0B0494Z through Aetrix?
Please submit a Request for Quotation (RFQ) for A7102CGUK/T0B0494Z 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 A7102CGUK/T0B0494Z reliable?
The price and inventory of A7102CGUK/T0B0494Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for A7102CGUK/T0B0494Z is usually 5 days.
3.What payment methods are accepted for A7102CGUK/T0B0494Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for A7102CGUK/T0B0494Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for A7102CGUK/T0B0494Z?
A7102CGUK/T0B0494Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your A7102CGUK/T0B0494Z 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 A7102CGUK/T0B0494Z?
For technical support, including A7102CGUK/T0B0494Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your A7102CGUK/T0B0494Z requirements.
6.How does Aetrix verify that A7102CGUK/T0B0494Z is sourced from the original manufacturer or authorized distributors?
All A7102CGUK/T0B0494Z 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 A7102CGUK/T0B0494Z meets industry standards.
7.What is the process for return or replacement of A7102CGUK/T0B0494Z?
All A7102CGUK/T0B0494Z units undergo pre-shipment inspection (PSI). If there is an issue with A7102CGUK/T0B0494Z, 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 A7102CGUK/T0B0494Z part is unused and in its original packaging.
Return procedure for A7102CGUK/T0B0494Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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