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NXP Semiconductors A7101CGTK2/T0B0405
- Part No.:
- A7101CGTK2/T0B0405
- Manufacturer:
- NXP Semiconductors
- Category:
- Application Specific Microcontrollers
- Package:
- 8-VDFN Exposed Pad
- Datasheet:
-
A7101CGTK2/T0B0405.pdf
- Description:
- SECURE AUTHENTICATION MICROCONTR
- Quantity:
- Payment:
- Shipping:
Inventory:3,134
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Product details
Overview
A7101CGTK2/T0B0405 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 sensors and IP cameras.
For engineers reviewing the A7101CGTK2/T0B0405 datasheet, A7101CGTK2/T0B0405 pinout, A7101CGTK2/T0B0405 application, or A7101CGTK2/T0B0405 equivalent, this page delivers verified package mapping (HVSON8, SOT909-1), confirmed I²C slave address (0x90/0x92), validated power modes (40 μA sleep / 10 μA deep sleep), and real-world credential provisioning constraints (4×ECC key pairs, 3×public keys, 8×128-bit symmetric secrets).
Technical Context
The A7101CGTK2/T0B0405 integrates a dedicated MX51 security CPU with on-chip Java Card OS and fixed IoT applet, enforcing strict memory isolation: host access is restricted to APDU commands via Smartcard I²C (SCI²C) protocol over standard I²C physical layer. All cryptographic operations - ECDSA, ECDH, HMAC-SHA256, HKDF - execute within protected hardware boundaries.
It supports dual-voltage operation (1.62–1.98 V or 2.5–3.6 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 tamper 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 using SCI²C protocol per ISO/IEC 7816-4 mapping |
| Cryptographic Engine | ECC NIST P-256 only; supports ECDSA sign/verify, ECDH/ECDH-E key agreement, HMAC-SHA256, HKDF |
| Secure Storage | 4×ECC key pairs, 3×public keys, 8×128-bit symmetric secrets, 2×32-bit monotonic counters, 128×32-byte GP segments |
| Memory Endurance | EEPROM: ≥500,000 write cycles, ≥25 years data retention at +55 °C |
| Power Modes | SLEEP: 40–150 μA typical (25 °C); DEEP SLEEP: ≤10 μA (25 °C or 90 °C) |
| Operating Temperature | −25 °C to +85 °C (A7101 variant); validated across full range for all crypto and I²C functions |
| I²C Address | Configurable: 0x90 (read 0x91) or 0x92 (read 0x93) depending on IF0/IF1 boot pins |
Pinout & Package
HVSON8 package (SOT909-1), 4 × 4 × 0.85 mm body, thermal pad unconnected but recommended grounded for thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| I2C_SCL | I²C clock input | Active HIGH, supports Fast-Mode timing (tCLKW 40–60%, fCLK ≤ 400 kHz) |
| VSS | Ground reference | Primary return path for all digital and analog circuits; connects to PCB ground plane |
| IF0 | Interface activation control | Must be HIGH at power-on-reset to enable I²C interface; held stable ≥500 μs |
| n.c. | No connection | Internally unconnected; no routing required |
| IF1 | I²C address selection | Determines 8-bit I²C address: IF0=1, IF1=1 → 0x92; IF0=1, IF1=0 → 0x90 |
| RST_N | Active-low reset input | Pull LOW ≥40 μs to exit SLEEP; ≥500 μs to enter DEEP SLEEP; internal pull-down |
| 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 external pull-up; supports SCI²C frame-level error detection |
Key Features
| Feature | Design Value |
|---|---|
| Root of Trust Provisioning | Preloaded IoT applet enables zero-touch credential injection - no factory programming required for basic PKI setup |
| Hardware-Enforced Isolation | Java Card OS restricts host access to APDUs only; private keys never exposed outside secure element boundary |
| Transport Lock Mechanism | Module can be permanently locked to prevent unauthorized reprogramming or credential extraction post-deployment |
| Side-Channel Resistance | SPA/DPA countermeasures licensed from Cryptography Research cover both hardware and firmware layers |
| Low-Power Security | 10 μA DEEP SLEEP current enables multi-year battery life in edge sensor nodes without sacrificing cryptographic readiness |
Applications
| Industrial Sensor Authentication | IP Camera Secure Boot |
|---|---|
Use Scenario: Factory-commissioned wireless temperature/humidity sensors authenticate to AWS IoT Core before transmitting telemetry. IC Role / Device Role / Timing Role: A7101CGTK2/T0B0405 stores device-specific ECC key pair and performs ECDSA challenge-response during TLS handshake. Use Value: Prevents cloning and man-in-the-middle attacks by binding identity to hardware; eliminates need for cloud-side certificate management. |
Use Scenario: IP camera boots with verified firmware image signed by OEM private key stored in A7101CGTK2/T0B0405. IC Role / Device Role / Timing Role: A7101CGTK2/T0B0405 verifies RSA-2048 signature of bootloader hash using pre-provisioned public key before execution. Use Value: Ensures firmware integrity and origin authenticity; blocks malicious firmware updates even if host MCU is compromised. |
| Home Gateway Credential Injection | Anti-Counterfeit Module Binding |
Use Scenario: Home gateway receives encrypted credentials over secure channel during first-time setup with cloud service provider. IC Role / Device Role / Timing Role: A7101CGTK2/T0B0405 decrypts and stores symmetric secrets using SCP03 secure channel with GP-compliant keyset. Use Value: Enables secure over-the-air provisioning without exposing keys in host memory or flash storage. |
Use Scenario: Medical consumable cartridge embeds A7101CGTK2/T0B0405 to prove genuine OEM origin before enabling device operation. IC Role / Device Role / Timing Role: A7101CGTK2/T0B0405 signs unique chip ID and batch data with locked ECC key pair upon reader request. Use Value: Provides cryptographically verifiable proof of origin; prevents reuse of expired or counterfeit cartridges. |
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; no built-in ECC NIST P-256 acceleration | Optimized for high-throughput symmetric encryption (e.g., bulk data encryption), not PKI-heavy IoT onboarding | Select when AES performance > ECC flexibility; verify SCP03 and Java Card compatibility for existing middleware |
| Infineon SLB9670 | TPM 2.0 compliant; SPI interface only; requires external microcontroller for command translation | Targets PC/server-class trusted platform modules; lacks preloaded IoT applet and transport lock feature | Choose for standardized TPM stack integration; avoid if I²C-only design or plug-and-play IoT provisioning required |
Compared with STSAFE-A110 and SLB9670, the A7101CGTK2/T0B0405 delivers out-of-box IoT security via preloaded applet and I²C-native SCI²C, reducing host software overhead and eliminating need for custom crypto abstraction layers - critical for resource-constrained MCU platforms.
Availability
A7101CGTK2/T0B0405 is available at Aetrix Electronics and suitable for industrial sensor authentication, IP camera secure boot, and home gateway credential injection requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for A7101CGTK2/T0B0405 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 company specializing in secure connectivity solutions for automotive, industrial, and IoT markets, with leadership in embedded security and contactless technologies.
The A71CH product line was designed specifically for chip-to-cloud IoT security - delivering certified root of trust in minimal footprint packages for battery-powered and space-constrained edge devices.
FAQ
What is the exact I²C address configuration for A7101CGTK2/T0B0405?
The A7101CGTK2/T0B0405 supports two 8-bit I²C addresses: 0x90 (read 0x91) and 0x92 (read 0x93). Address selection depends on IF0 and IF1 pin states at power-on-reset: IF0=HIGH and IF1=LOW yields 0x90; IF0=HIGH and IF1=HIGH yields 0x92. Both addresses are valid and must be configured in host firmware before communication. The A7101CGTK2/T0B0405 does not respond to other addresses.
Does A7101CGTK2/T0B0405 support both 1.8 V and 3.3 V operation?
Yes, the A7101CGTK2/T0B0405 operates in two distinct voltage modes: 1.62–1.98 V (1V8 mode) and 2.5–3.6 V (3V3 mode). Each mode has separate current specifications - e.g., ECC coprocessor draws 7.5 mA typical in 1V8 mode versus 15.1 mA typical in 3V3 mode. Voltage mode is auto-detected; no configuration register is required. The A7101CGTK2/T0B0405 must be powered within one of these ranges at all times.
Can A7101CGTK2/T0B0405 perform ECDSA signing with externally provided private keys?
No. The A7101CGTK2/T0B0405 generates and stores private keys internally during key pair creation; private keys never leave the secure element. ECDSA signing uses only keys generated inside the A7101CGTK2/T0B0405. External key injection is limited to public keys (3 slots), symmetric secrets (8×128-bit), and SCP03 keys - all subject to Protected Access rules. This design enforces hardware-rooted key protection, a core requirement of the A7101CGTK2/T0B0405 security model.
What is the purpose of the Transport Lock feature in A7101CGTK2/T0B0405?
The Transport Lock feature allows permanent disabling of all provisioning commands (e.g., key generation, secret insertion, applet loading) after initial credential setup. Once activated, the A7101CGTK2/T0B0405 becomes immutable - preventing post-deployment reprogramming or credential extraction. This ensures supply chain integrity and meets anti-tampering requirements for certified IoT deployments. Transport Lock is irreversible and applies to the entire A7101CGTK2/T0B0405 device.
How does A7101CGTK2/T0B0405 handle power loss during EEPROM write operations?
The A7101CGTK2/T0B0405 includes hardware-level EEPROM write protection: each erase+program cycle (tEEP = 2.7 ms max) is atomic and power-fail safe. If VCC drops below operational threshold during programming, the internal state machine aborts the operation and restores previous valid data. No external brown-out detection or backup power is required. This guarantees data integrity for all secure storage operations - including monotonic counter increments and key updates - under real-world power conditions.
A7101CGTK2/T0B0405 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/T0B0405 FAQ
1.How can I place an order for A7101CGTK2/T0B0405 through Aetrix?
Please submit a Request for Quotation (RFQ) for A7101CGTK2/T0B0405 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/T0B0405 reliable?
The price and inventory of A7101CGTK2/T0B0405 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for A7101CGTK2/T0B0405 is usually 5 days.
3.What payment methods are accepted for A7101CGTK2/T0B0405?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for A7101CGTK2/T0B0405 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for A7101CGTK2/T0B0405?
A7101CGTK2/T0B0405 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your A7101CGTK2/T0B0405 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/T0B0405?
For technical support, including A7101CGTK2/T0B0405 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your A7101CGTK2/T0B0405 requirements.
6.How does Aetrix verify that A7101CGTK2/T0B0405 is sourced from the original manufacturer or authorized distributors?
All A7101CGTK2/T0B0405 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/T0B0405 meets industry standards.
7.What is the process for return or replacement of A7101CGTK2/T0B0405?
All A7101CGTK2/T0B0405 units undergo pre-shipment inspection (PSI). If there is an issue with A7101CGTK2/T0B0405, 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/T0B0405 part is unused and in its original packaging.
Return procedure for A7101CGTK2/T0B0405:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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