NOR Flash with built-in security features

Security NOR Flash with Root of Trust and advanced encryption capabilities

Currently, there is an increase in security attacks against flash in embedded systems that involve tampering and spoofing. Infineon's SEMPER™ Secure NOR Flash family SEMPER™
This is a flash with added security features. Hardware Root of Trust is realized in TCGDICE. Unique Device Secret (UDS) management, keysProvides managed or provisioned advanced encryption capabilities.

It also has a built-in hardware acceleration engine, enabling secure transactions.

SEMPER™ Secure NOR Flash Architecture

Architecture description

Nonvolatile Monotonic Counters: Two 64-bit nonvolatile monotonic counters that never decrease in value, preventing replay attacks
UDS (Unique Device Secret): The device has a secret value and protects it from being misused by others.
Key Management: Provides secure key storage and allows only authorized hosts to update key storage
Symmetric/Asymmetric Key Provisioning: SEMPER™ Secure NOR Flash offers symmetric and asymmetric provisioning, which is performed only when devices are paired, ensuring authenticity
True random number generator: Generates numbers that cannot be guessed by hackers, and is used for generating keys, digital signatures, etc.
Secure transactions: Provides reliability, integrity and security between hosts and devices, ensuring only authorized read and erase operations
Encryption engine: Always encrypts data transmitted between hosts and devices in case a hacker sees it

Comparison with other companies' products

	SEMPER™ Secure NOR Flash(Infineon)	Company A	Company B
capacity	128Mb - 1Gb	64Mb - 2Gb	1Gb
Operating voltage	1.8V and 3.0V	1.8V and 3.0V	2.5V and 3.0V
Interface/ speed	JEDEC xSPI: 400MB/s (200MHz) QSPI: 102BM/s (166MHz)	133MHz or 90MHz SPI	133MHz (x1 and x8) Single Octa
temperature grade	-40℃ - +125℃	-40℃ - +105℃	-40℃ - +85℃
package	BGA, SOIC, WSON	T-PBGA, SOP, W-PDFN	SOP, TFBGA
Number of rewrites Data Retention Period	500k rewrite endurance 25 years	100k rewrite endurance 20 years	100k rewrite endurance 20 years
Functional safety	Interface, Data CRC ECC Safe Boot, Diagnostics	Data CRC	ECC, Data CRC
Security function	Secure Boot, Secure Transaction, UDS, Symmetric/Asymmetric Key Provisioning	-	OTP（One Time Password）
core	Arm®Coretex®-M0	-	-

Product features

NOR flash stores boot code and important data, so it must always be managed securely. However, with cyber attacks by hackers and other hackers expected to increase in the future, the demand for security is growing.

In response to these challenges, Infineon offers SEMPER™ Secure NOR Flash, which can prevent external attacks and ensure secure management of data.

SEMPER™ Secure NOR Flash, the world's most secure
ISO 26262 ASIL-B and ASPICE Level 2 Compliant
TCG DICE Compliant Easy FIPS 140-2 compliance
Automotive grade support: AEC-Q100 qualified and proven at -40°C to +125°C temperature
Up to 400MB/s Read Bandwidth: Offers HYPERBUS™, Octal SPI, and Quad SPI
EnduraFlex architecture: Configure multiple partitions for up to 25 years of data retention and 500,000+ cycle endurance