Microchip ATECC608B-TFLXTLS Bedienungsanleitung

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Data Sheet

© 2020-2023 Microchip Technology Inc. and its subsidiaries

DS40002249B - 1

Introducon

The ATECC608B-TFLXTLS is a pre-provisioned variant of the ATECC608B. The ATECC608B provides enhanced security measures

over that of the ATECC608A. These enhancements also apply to the ATECC608B-TFLXTLS. The TrustFLEX secure element is part

of Microchip’s family of generically provisioned security-focused devices. The device conguraon was designed to make the

secure element applicable to some of the most common use cases in the IoT market, while minimizing the learning and start-up

curves associated with security devices.

The ATECC608B-TFLXTLS conguraon is nearly idencal to that of the ATECC608B-TNGTLS. Some addional exibility has been

provided with respect to data loaded into cercate and key slots and the locking opons of those slots. These slot access

polices will be set by the Trust Plaorm Design Suite tools prior to ordering the ATECC608B-TFLXTLS devices. A Single Wire

Interface (SWI) opon is also available for this device.

This data sheet provides the slot and key conguraon informaon that is unique to the ATECC608B-TFLXTLS. This informaon

clearly denes the access policies of each of the data zone slots. Only relevant command and I/O operang informaon

has been included. An applicaon secon discussing Microchip’s hardware and soware tools that can aid in developing an

applicaon is also provided with addional links to the locaon of the tools.

Features

•Specied Conguraon Zone with limited selectable opons.

•I/O Opons

–I

2

C Interface with One-Time Changeable I

2

C Address

–Single Wire Interface (SWI)

•One Permanent Primary P-256 Ellipc Curve Cryptography (ECC secp256r1) Private Key Fixed at Manufacturing Time

•One Internal Sign Private Key for Key Aestaon

•Three Secondary P-256 ECC Private Keys that Can Be Regenerated by the User

•Signer Public Key from Signer Cercate

•Public Key Validaon Support

•One Customizable Symmetric Secret Key Slot

•IO Protecon Key Slot to Protect I

2

C Communicaon

•Secure Boot Enabled with Customizable Secure Boot Public Key at Time of Manufacture

•ECDH/KDF Key Slot Capable of Being Used with AES Keys and Commands

•X.509 Compressed Cercate Storage

•Customizable Cercate Storage Slots

•Available in 8-Pad UDFN and 8-Pin SOIC Packages in 2k unit producon quanes.

Use Cases

•Secure IoT TLS 1.2 and 1.3 Connecons

•Secure Boot/Secure Firmware Update

ATECC608B-TFLXTLS CryptoAuthencaon

™

Data

Sheet

ATECC608B-TFLXTLS

Produktspezifikationen