DESCRIPTION
The NX25F641C Serial Flash memory provide a storage solution for systems which are limited in power, pins, space, hardware and firmware resources. The NX25F641C is ideal for applications that store voice, images and data in a portable/mobile environment as well for down-loading code into controllers with embedded DRAM or SRAM.

FEATURES
• 64M–bit Serial Flash Memory
• Flash storage for systems with limited pins, space, and power
    – Ideal for high density serial code–shadowing
    – Data, voice and image storage
    – Battery–operated products
• Nonvolatile Memory Technology
    – Single transistor EEPROM memory
    – 16,384 sectors of 528 bytes each
    – Sector erase/write time of 10 ms/sector (typical)
    – Ten year data retention
• 4–pin SPI Serial Interface
    – Easily interfaces to popular microcontrollers
    – Clock operation as fast as 20MHz
    – Optional Hold and Ready/Busy pin functions
• Ultra–low Power for Battery–Operation
    – Single 2.7–3.6V supply for Read, Erase/Write
    – 1 µA standby, 5 mA active (typical)
• Special Features
    – Auto-increment sector read for serial code–shadowing applications
    – Two on–board 528–byte SRAM Buffers
    – Byte–level addressing
    – Configurable software write–protection
• Package Options
    – 32–PIN TSOP (Type I)
    – Removable Cards and Modules