A7101CHTK2/T0BC2BJ

Overview

The A7101CH is a secure element chip designed for zero-touch connection in IoT applications. It provides end-to-end security from the chip to the edge and cloud, serving as a root of trust for injecting secure credentials at the IC level. The device features protected credential access and supports various authentication methods including ECC-based identity verification, TLS-PKI, TLS-PSK, and HMAC for connectionless message authentication. It includes protected storage capabilities with host secret and key wrapping functions, along with key locking mechanisms. The component operates within a standard temperature range of -25°C to +85°C.

Feature Summary

• Secure zero-touch connection enabling plug-and-trust deployment
• Hardware encryption co-processor supporting ECC authentication and TLS protocols
• Protected storage with key wrapping, derivation, and locking mechanisms
• HVSON8 (4x4 mm) and WLCSP (2x2 mm) package options

Applications

• IoT device onboarding and secure provisioning
• Edge computing nodes requiring hardware-rooted trust
• Smart home and industrial IoT sensors needing secure credential injection

Procurement Notes

Verify the specific suffix T0BC2BJ against official NXP documentation to confirm tape and reel packaging specifications and lot traceability requirements. Ensure compatibility with the host MCU's SPI or I2C interface for the cryptographic acceleration interface. Confirm that the standard temperature range (-25 to +85 °C) meets the operational environmental constraints of the target application.

Selection Notes

Select this component when hardware-level security for credential injection is required without manual configuration. Compare with the A7102 variant if an extended temperature range (-40 to +90 °C) is necessary. Ensure the host system can support the required ECC and TLS protocol stacks for leveraging the chip's full security features. Verify pinout compatibility between HVSON8 and WLCSP packages during PCB layout.

Part Context

The A7101CH belongs to NXP's EdgeLock secure element portfolio, designed to simplify IoT security by providing a trusted platform for credential management. It complements microcontrollers like the Kinetis K82 and KW41Z by offloading complex cryptographic operations and secure storage. This family addresses the growing need for secure device identity and data protection in connected ecosystems.

Replacement Considerations

The A7102CH is a direct functional alternative offering an extended temperature range (-40 to +90 °C). Verify package availability and thermal performance differences before substitution. No other cross-model replacements are confirmed in public documentation.