2/4/8-Mbit NOR Flash Microchip Technology 2/4/8-Mbit NOR Flash memories are Serial Quad I/O™ (SQI™) family of flash memory devices that feature a six-wire and 4-bit I/O interface. The SQI family with 4-bit interface allows low-power and high-performance operation in a low pin count package. These NOR flash memories improve performance and reliability, while lowering power consumption. The NOR flash memories are AEC-Q100 qualified and RoHS compliant.