The N25Q128A21BF840E from Micron Technology Inc. is a 128 Mbit SPI NOR flash memory Integrated Circuit rated to 108 MHz, in an 8-VDFPN (MLP8) (8x6) package.
The N25Q128A21BSF40F TR from Micron Technology Inc. is a NOR flash memory Integrated Circuit with 128 Mbit capacity and an SPI interface, rated at 108 MHz, in a 16-SOP2 package.
The N25Q128A21BF840F TR from Micron Technology Inc. is a NOR flash memory Integrated Circuit with 128 Mbit capacity and an SPI interface operating at 108 MHz, in an 8-VDFPN (MLP8) (8x6) package.