NXP Semiconductors A7101CGUK/T0B0407,

Overview

A7101CGUK/T0B0407 from NXP Semiconductors is a Plug & Trust Secure Element IC implementing Java Card OS and preloaded IoT security applet, providing chip-level root of trust via I²C interface (400 kbit/s Fast-Mode), ECC NIST P-256 key pair storage (4×), and secure credential provisioning for cloud-connected industrial devices operating from −25 °C to +85 °C.

For engineers reviewing the A7101CGUK/T0B0407 datasheet, A7101CGUK/T0B0407 pinout, A7101CGUK/T0B0407 application, or A7101CGUK/T0B0407 equivalent, this page delivers verified package mapping (WLCSP12), validated I²C address options (0x90/0x92), confirmed power modes (deep sleep ≤10 μA), cryptographic capabilities (ECDSA/ECDH/HKDF/SCP03), and real-world use cases in IP cameras and home gateways.

Technical Context

The A7101CGUK/T0B0407 implements Smartcard I²C (SCI²C) protocol over standard I²C physical layer, supporting ISO/IEC 7816-4 APDU mapping with default 7-bit addresses 0x48 (0x90) and 0x49 (0x92). It operates autonomously using integrated Java Card OS and fixed IoT applet, isolating all memory access behind protected APIs.

Security architecture includes hardware-enforced monotonic counters (2×32-bit), protected symmetric secret storage (8×128-bit), SCP03 secure channel support, and tamper sensors (HVS/LVS/LTS/HTS/light/glitch) active in normal mode but disabled in SLEEP mode. Credentials are frozen via OTP behavior and transport lock mechanism.

Key Specifications

Pinout & Package

Package: WLCSP12 (wafer-level chip-scale package, 12 bumps, 0.5 mm ball pitch), no leadframe, body size per Fig. 8 in datasheet Rev. 1.2.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar secure element applications.

Compared with STSAFE-A110 and SLB9670, the A7101CGUK/T0B0407 delivers superior integration density (WLCSP12), lower deep-sleep current (≤10 μA), native SCP03 support, and pre-certified IoT applet - making it optimal for space-constrained, battery-operated cloud-connected devices requiring out-of-box security.

Availability

A7101CGUK/T0B0407 is available at Aetrix Electronics and suitable for IP camera security, home gateway authentication, and industrial sensor node integrity requiring stable component supply, long-term lifecycle support, and traceable sourcing for production programs.

Supply support for A7101CGUK/T0B0407 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 headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The A71CH product line was designed specifically to deliver plug-and-play, chip-to-cloud security for resource-constrained IoT endpoints - enabling rapid integration of hardware-rooted trust without custom firmware development.

FAQ

What is the I²C address configuration for A7101CGUK/T0B0407?

The A7101CGUK/T0B0407 supports two 7-bit I²C addresses: 0x48 (corresponding to 8-bit 0x90) and 0x49 (corresponding to 8-bit 0x92). Address selection is controlled by the IF1 pin state at power-on-reset: low selects 0x48, high selects 0x49. The IF0 pin must be pulled high to enable the I²C interface. These settings are fixed per device configuration and cannot be changed post-manufacture. A7101CGUK/T0B0407 does not support dynamic address reconfiguration during runtime.

Does A7101CGUK/T0B0407 support both 1.8 V and 3.3 V operation?

Yes, A7101CGUK/T0B0407 supports dual-supply operation: 1.62–1.98 V (1V8 mode) and 2.50–3.6 V (3V3 mode). In 1V8 mode, typical active current is 2.45 mA (no coprocessor) and 7.5 mA (ECC active); in 3V3 mode, it is 7.0 mA and 15.1 mA respectively. Both modes maintain full cryptographic functionality and I²C timing compliance. Voltage selection is determined by the applied VCC level and requires no configuration register writes - the device auto-detects operating voltage range.

How is secure provisioning performed on A7101CGUK/T0B0407?

A7101CGUK/T0B0407 enables secure provisioning through its preloaded IoT applet and SCP03-compliant secure channel. Credentials (ECC key pairs, public keys, symmetric secrets) are injected via authenticated, encrypted APDUs over I²C after establishing the SCP03 session using the default keyset. Provisioning can be performed in-system using NXP's host library and OpenSSL/Mbed TLS engine integration. The transport lock feature allows permanent disabling of further provisioning once initial credentials are written - ensuring supply-chain integrity for A7101CGUK/T0B0407.

What are the power-saving modes of A7101CGUK/T0B0407 and how are they triggered?

A7101CGUK/T0B0407 provides two power-saving modes: SLEEP (≤150 μA @25 °C) and DEEP SLEEP (≤10 μA). SLEEP activates automatically after 312 ms of I²C inactivity and exits on RST_N pulse or falling edge on I2C_SDA. DEEP SLEEP requires holding RST_N low for ≥500 μs and exits only upon releasing RST_N to logic high. During DEEP SLEEP, internal power is fully shut down except for I/O pads, which remain in high-Z state. Both modes preserve monotonic counter values and non-volatile memory contents.

Is A7101CGUK/T0B0407 qualified for industrial temperature range?

Yes, A7101CGUK/T0B0407 is rated for −25 °C to +85 °C operational ambient temperature, meeting industrial-grade requirements per A7101 variant specification. This rating is validated across all electrical parameters including I²C timing, supply current, EEPROM endurance (500,000 cycles), and data retention (25 years at +55 °C). The WLCSP12 package has been qualified under JEDEC J-STD-020 moisture sensitivity level 3 and supports reflow soldering per IPC/JEDEC J-STD-020D.2.