FL Serial NOR Flash Memory Infineon Technologies FL Serial NOR Flash Memory offers a reduced pin count while providing optimal read/write performance. This feature makes the FL Serial NOR Flash Memory optimal for automotive, networking, consumer electronics, and industrial applications. An AEC-Q100 qualification and PPAP support are available for automotive customers. The Infineon FL family has four product groups: FL-S, FL-L, FL1-K, and FL-P.