TECHNICAL GUIDE
STSAFA110DFSPL02 Hardware Secure Element Authentication IC
Use the article below together with the latest manufacturer documentation and your application requirements.
The STSAFA110DFSPL02 is a dedicated hardware‑based secure element, built to deliver robust identity authentication and key management for embedded electronic systems. It adopts compact surface‑mount packaging, suitable for high‑density PCB layout, and supports standard tape‑and‑reel SMT processing to satisfy large‑volume industrial production demands.
This crypto chip integrates complete symmetric cryptographic hardware acceleration, supporting SHA‑256 hash algorithm, HMAC and MAC authentication operations. Critical secret keys are stored inside hardware‑isolated memory zones, which can avoid key exposure risks existing in software‑only encryption solutions. Memory areas support configurable access permission setting, and partial regions can be permanently locked after programming to prevent unauthorized reading or tampering.
Every STSAFA110DFSPL02 device is pre‑programmed with a unique unchangeable serial number during manufacturing, providing fixed hardware identity for each end device. An on‑board true random number generator generates high‑quality random data for authentication challenges, effectively resisting replay attack and brute‑force decryption. Integrated OTP and user storage memory can hold customized configuration parameters, credential information and product‑specific data for long‑time retention.
The component utilizes I²C communication interface for connection with mainstream microcontroller units. It supports wide operating voltage range, adapting to various consumer and industrial embedded power supply designs. Low power consumption characteristics enable it to work efficiently in battery‑driven portable equipment, keeping low energy consumption under standby status.
Equipped with hardware anti‑tamper protection mechanism, all cryptographic calculation processes are completed within internal independent circuits, and sensitive data will not be transmitted to external main control chip. It maintains stable working performance under standard industrial temperature range, and conforms to RoHS environmental requirements for global electronic product shipment.
Common application scenarios include accessory anti‑cloning verification, consumable product anti‑counterfeiting, IoT device identity certification, embedded hardware IP protection, and secure storage of sensitive configuration information. As a cost‑effective hardware trust root, it relieves security burdens of host MCU and improves overall system safety for smart hardware and industrial terminals.
This crypto chip integrates complete symmetric cryptographic hardware acceleration, supporting SHA‑256 hash algorithm, HMAC and MAC authentication operations. Critical secret keys are stored inside hardware‑isolated memory zones, which can avoid key exposure risks existing in software‑only encryption solutions. Memory areas support configurable access permission setting, and partial regions can be permanently locked after programming to prevent unauthorized reading or tampering.
Every STSAFA110DFSPL02 device is pre‑programmed with a unique unchangeable serial number during manufacturing, providing fixed hardware identity for each end device. An on‑board true random number generator generates high‑quality random data for authentication challenges, effectively resisting replay attack and brute‑force decryption. Integrated OTP and user storage memory can hold customized configuration parameters, credential information and product‑specific data for long‑time retention.
The component utilizes I²C communication interface for connection with mainstream microcontroller units. It supports wide operating voltage range, adapting to various consumer and industrial embedded power supply designs. Low power consumption characteristics enable it to work efficiently in battery‑driven portable equipment, keeping low energy consumption under standby status.
Equipped with hardware anti‑tamper protection mechanism, all cryptographic calculation processes are completed within internal independent circuits, and sensitive data will not be transmitted to external main control chip. It maintains stable working performance under standard industrial temperature range, and conforms to RoHS environmental requirements for global electronic product shipment.
Common application scenarios include accessory anti‑cloning verification, consumable product anti‑counterfeiting, IoT device identity certification, embedded hardware IP protection, and secure storage of sensitive configuration information. As a cost‑effective hardware trust root, it relieves security burdens of host MCU and improves overall system safety for smart hardware and industrial terminals.
