Overview
The AT4K8G22FDX0AA is organized as a 4K-bits by 8 one-time programmable memory. This is a kind of non-volatile memory fabricated in GLOBALFOUNDRIES® 22nm FD-SOI CMOS logic process. The OTP can be widely used in chip ID, security key, memory redundancy, parameter trimming, configuration setting, feature selection, and PROM, etc.
Learn more about eFuse / OTP IP core
Patented by Attopsemi™, I-fuse™ is a revolutionary non-breaking fuse technology that can be reliably programmed by heat assisted electromigration below a break point. Any cell can be tested as programmable if the initial fuse resistance is low enough (e.g. <400 ohms) to generate enough heat for programming.
OTP stands for “One-Time Programmable”, a device that can only be programmed once to permanently store any kind of information (data for chip IDs, security keys, product feature selection, memory redundancy, device trimming, or MCU code memory). Every chip needs OTPs, as long as they are reliable, available, and affordable.