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NXP Semiconductors A7101CGTK2/T0B040X
- Part No.:
- A7101CGTK2/T0B040X
- Manufacturer:
- NXP Semiconductors
- Category:
- Application Specific Microcontrollers
- Package:
- 8-VDFN Exposed Pad
- Datasheet:
-
A7101CGTK2/T0B040X.pdf
- Description:
- SECURE AUTHENTICATION MICROCONTR
- Quantity:
- Payment:
- Shipping:
Inventory:4,705
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Product details
Overview
A7101CGTK2/T0B040X 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, ECDSA signature/verification, ECDH key agreement, and 2×32-bit monotonic counters - deployed in secure cloud onboarding for industrial gateways.
For engineers reviewing the A7101CGTK2/T0B040X datasheet, A7101CGTK2/T0B040X pinout, A7101CGTK2/T0B040X application, or A7101CGTK2/T0B040X equivalent, this page delivers verified package mapping (HVSON8), validated I²C address options (0x90/0x92), confirmed power modes (40 μA sleep / 10 μA deep sleep), and real-world credential provisioning use cases.
Technical Context
The A7101CGTK2/T0B040X implements a dedicated MX51 security CPU with on-chip Java Card OS and fixed IoT applet, enforcing strict memory isolation via protected access storage - all host interactions occur through Smartcard I²C (SCI²C) protocol over standard SMBus physical layer. It supports dual-voltage operation (1.62–1.98 V or 2.5–3.6 V) and automatic interface mode detection at power-on based on IF0/IF1 pin states.
Security architecture includes hardware-based SPA/DPA countermeasures licensed from Cryptography Research, active shielding, glitch/light/temperature/voltage sensors, and transport lock capability. Credential lifecycle is managed via SCP03-secured channel, with EEPROM endurance rated at 500,000 cycles and 25-year data retention at +55 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| I²C Interface | Slave-mode Fast-Mode up to 400 kbit/s; uses SCI²C protocol per ISO/IEC 7816-4 mapping |
| Operating Temperature | −25 °C to +85 °C (A7101 variant); enables deployment in home gateways and IP cameras |
| Cryptographic Support | 4× ECC NIST P-256 key pairs; 3× public keys; 8×128-bit symmetric secrets; ECDSA/ECDH/HKDF/HMAC-SHA256 |
| Power Consumption | 40 μA typical sleep current; 10 μA max deep sleep current - critical for battery-backed edge nodes |
| Memory Endurance | EEPROM: 500,000 program/erase cycles; 25-year data retention at +55 °C - ensures long-term credential integrity |
| Security Features | SCP03 GP support; transport lock; monotonic counters; unique 18-byte chip ID; CRI-licensed SPA/DPA countermeasures |
| Package | HVSON8 (SOT909-1), 4 × 4 × 0.85 mm body; thermal pad recommended grounded for reliability |
Pinout & Package
HVSON8 package (SOT909-1), 4 × 4 × 0.85 mm body with exposed thermal pad (not electrically connected but recommended grounded).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| I2C_SCL | I²C clock input | Active-low synchronous timing signal; supports Fast-Mode up to 400 kHz |
| VSS | Ground reference | Primary return path for all digital and analog circuitry; connects to PCB ground plane |
| IF0 | Interface activation control | High at power-on selects default I²C address (0x90/0x92); must be stable ≥500 μs after POR |
| n.c. | No connection | Internally unconnected terminal; no routing required |
| IF1 | I²C address selection | Determines second I²C address option (0x92/0x93); used with IF0 for dual-address configuration |
| RST_N | Active-low reset input | Pull low ≥500 μs to enter deep sleep; falling edge on SDA wakes from sleep mode |
| 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 output with internal pull-up; supports SCI²C APDU framing and error detection |
Key Features
| Feature | Design Value |
|---|---|
| Secure credential injection | Enables zero-touch root-of-trust provisioning at IC level without exposing private keys to host MCU |
| Protected Access storage | Hardware-enforced isolation prevents host read/write access to stored keys unless authenticated via SCP03 |
| Transport lock mechanism | Immutable lock state prevents unauthorized reprogramming or credential extraction after deployment |
| Monotonic counter enforcement | Two independent 32-bit counters prevent rollback attacks during firmware updates or secure boot verification |
| Smartcard I²C protocol compliance | Full SCI²C implementation enables interoperability with existing Java Card middleware and OpenSSL/Mbed TLS engines |
Applications
| Cloud Onboarding | Device Authentication |
|---|---|
Use Scenario: Provisioning IoT devices onto AWS IoT Core or Azure IoT Hub during manufacturing or field commissioning. IC Role / Device Role / Timing Role: Secure Element performs attestation, signs device identity certificates, and establishes TLS-secured MQTT sessions. Use Value: Eliminates manual certificate injection; enables scalable, auditable, and tamper-proof cloud enrollment. |
Use Scenario: Mutual authentication between two edge devices before establishing encrypted sensor data exchange. IC Role / Device Role / Timing Role: Generates ephemeral ECDH keys and verifies peer signatures using pre-provisioned public keys. Use Value: Prevents spoofing and man-in-the-middle attacks in mesh networks without centralized PKI infrastructure. |
| Anti-Counterfeiting | Secure Firmware Updates |
Use Scenario: Verifying authenticity of replacement modules in industrial PLCs or medical equipment. IC Role / Device Role / Timing Role: Stores manufacturer-signed proof-of-origin certificate and validates digital signature on module firmware. Use Value: Blocks counterfeit components by binding hardware identity to cryptographic credentials stored in tamper-resistant EEPROM. |
Use Scenario: Authenticating and decrypting OTA firmware images in smart home appliances. IC Role / Device Role / Timing Role: Validates ECDSA signature of update manifest and derives AES session key via HKDF using stored symmetric secret. Use Value: Ensures only authorized, unmodified firmware executes - critical for safety-critical consumer devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar secure element applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ATECC608A-TFLXT | Supports I²C and SPI; lacks Java Card OS; uses custom command set instead of SCI²C/APDU | Better suited for resource-constrained MCUs without Java Card middleware stack | Select when needing SPI interface or tighter integration with Microchip's CryptoAuthentication library |
| SLB9670 | TPM 2.0 compliant; larger footprint (QFN32); requires dedicated TPM driver stack | Required for Windows Hello, BitLocker, or Linux tpm2-tss compliance | Select when platform-level trust anchor certification (e.g., Microsoft WHQL) is mandatory |
Compared with ATECC608A-TFLXT and SLB9670, the A7101CGTK2/T0B040X offers plug-and-play compatibility with Java Card ecosystems and optimized power efficiency for battery-operated edge nodes - making it ideal for rapid design-in where cloud SDK alignment (e.g., IBM Watson IoT) and low-quiescent-current security are prioritized.
Availability
A7101CGTK2/T0B040X is available at Aetrix Electronics and suitable for secure cloud onboarding, device authentication, anti-counterfeiting, and secure firmware updates requiring stable component supply across industrial, consumer, and embedded IoT programs.
Supply support for A7101CGTK2/T0B040X 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 trusted execution environments.
The A71CH product line delivers chip-to-cloud security with pre-integrated Java Card OS and IoT applets - designed specifically for rapid, standards-compliant secure provisioning in resource-constrained edge devices.
FAQ
What is the primary security function of the A7101CGTK2/T0B040X?
The A7101CGTK2/T0B040X serves as a tamper-resistant secure element that provides root-of-trust functionality through hardware-isolated storage and cryptographic operations. It executes a fixed IoT applet on a dedicated MX51 security CPU, enabling secure credential injection, ECDSA signing/verification, ECDH key agreement, and SCP03-secured communication - all while preventing host MCU access to private keys. This makes the A7101CGTK2/T0B040X ideal for protecting device identity in cloud-connected systems.
Does the A7101CGTK2/T0B040X support both 1.8 V and 3.3 V operation?
Yes, the A7101CGTK2/T0B040X 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 deep sleep current remains at 10 μA. In 3V3 mode, active current rises to 7.0 mA (no coprocessor), while sleep current is 45–150 μA. Voltage selection is determined by external supply and does not require configuration - the A7101CGTK2/T0B040X auto-detects operating range.
What I²C addresses does the A7101CGTK2/T0B040X use, and how are they selected?
The A7101CGTK2/T0B040X supports two 8-bit I²C addresses: 0x90 (read 0x91) and 0x92 (read 0x93), selected at power-on based on IF0 and IF1 pin states. When IF0 = high and IF1 = high, the address defaults to 0x92/0x93; when IF0 = high and IF1 = low, it defaults to 0x90/0x91. These pins must remain stable for ≥500 μs after power-on-reset. The A7101CGTK2/T0B040X uses Smartcard I²C (SCI²C) protocol, not standard I²C, requiring host-side APDU framing.
How does the A7101CGTK2/T0B040X handle power management in low-power systems?
The A7101CGTK2/T0B040X provides two ultra-low-power states: SLEEP mode (40 μA typical, triggered automatically after 312 ms I²C inactivity) and DEEP SLEEP mode (10 μA max, entered by holding RST_N low ≥500 μs). In SLEEP mode, clocks freeze and RAM retains content; in DEEP SLEEP, internal power shuts off and I/O pads go high-Z. Wake-up occurs via RST_N release or falling edge on I2C_SDA - enabling energy-efficient operation in battery-powered IoT endpoints using the A7101CGTK2/T0B040X.
Is the A7101CGTK2/T0B040X compatible with standard Java Card development tools?
Yes, the A7101CGTK2/T0B040X runs a certified Java Card OS and supports GlobalPlatform-compliant applets, including SCP03 secure channel. It integrates with standard toolchains such as GlobalPlatform Pro, JCOP Tools, and OpenSC - provided the host system implements SCI²C protocol translation (via NXP's host library or custom APDU wrapper). Unlike generic Java Card chips, the A7101CGTK2/T0B040X ships with a fixed IoT applet, so applet loading is restricted unless customer-programmable configuration is ordered.
A7101CGTK2/T0B040X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 8-VDFN Exposed Pad
- 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:
- -25°C ~ 90°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-HVSON (4x4)
A7101CGTK2/T0B040X FAQ
1.How can I place an order for A7101CGTK2/T0B040X through Aetrix?
Please submit a Request for Quotation (RFQ) for A7101CGTK2/T0B040X 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 A7101CGTK2/T0B040X reliable?
The price and inventory of A7101CGTK2/T0B040X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for A7101CGTK2/T0B040X is usually 5 days.
3.What payment methods are accepted for A7101CGTK2/T0B040X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for A7101CGTK2/T0B040X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for A7101CGTK2/T0B040X?
A7101CGTK2/T0B040X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your A7101CGTK2/T0B040X 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 A7101CGTK2/T0B040X?
For technical support, including A7101CGTK2/T0B040X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your A7101CGTK2/T0B040X requirements.
6.How does Aetrix verify that A7101CGTK2/T0B040X is sourced from the original manufacturer or authorized distributors?
All A7101CGTK2/T0B040X 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 A7101CGTK2/T0B040X meets industry standards.
7.What is the process for return or replacement of A7101CGTK2/T0B040X?
All A7101CGTK2/T0B040X units undergo pre-shipment inspection (PSI). If there is an issue with A7101CGTK2/T0B040X, 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 A7101CGTK2/T0B040X part is unused and in its original packaging.
Return procedure for A7101CGTK2/T0B040X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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