The NX25Mxxx and NX26Mxxx Serial Flash Modules (SFM) provide the benefits of NexFlash's Serial Flash Memories in an innovative removable package. SFM support capacities of 128KB, 256KB, 512KB, 1MB, 2MB, and 4MB. SFM ' s are ideal for microcontroller-based applications, small portable and mobile products, and other resource-limited systems that store data, voice, and images. SFM's have a space-efficient form factor of 15mm (0.6") by 45mm (1.8") that is easy to handle and transport (see Figure 1). Simple electrical contacts, similar to those used in smart cards, provide for a reliable and cost-effective interface to a surface-mount slide-in connector (commonly used in GSM phones). Up to two Serial Flash Memories can be mounted onto the module which is made of standard FR4 Epoxy Glass PCB material.