SPI NOR flash memory is a type of non-volatile storage that uses the synchronous Serial Peripheral Interface (SPI) protocol for communication. It has long been a popular choice among embedded system designers due to its low pin count, compact footprint, and cost-effectiveness.

With the introduction of ultra-fast Execute-In-Place (XIP) for direct SPI NOR memory access, SPI NOR has evolved into a true memory solution that replaces parallel NOR in many applications. The SPI interface protocols include Standard SPI, Dual SPI, Quad SPI, and Octal SPI, each offering progressively higher data throughput.

Over the years, GigaDevice has expanded its voltage options beyond the original 1.8V and 3V series to include three additional series: 1.65V to 3.6V wide voltage range, 1.2V, and 1.8V with 1.2V VIO. The supported density ranges are as follows: 1.8V and 3V support 512Kb to 2Gb; 1.65V to 3.6V supports 512Kb to 256Mb; 1.2V supports 8Mb to 256Mb; and 1.8V with 1.2V VIO supports 32Mb to 2Gb.

Each voltage series includes tailored innovations and feature sets based on customer needs, such as low to ultra-low power consumption, fast program and erase speeds, high read performance, enhanced reliability, extended temperature support up to 125°C, and smaller package options.