GENERAL DESCRIPTION
The MX28F2100B is a 2-mega bit Flash memory organized as 256K bytes of 8 bits or 128K words of 16 bits switchable. MXICs Flash memories offer the most cost-effective and reliable read/write nonvolatile random access memory. The MX28F2100B is packaged in 44-pin SOP and 48-pin TSOP(I). It is designed to be reprogrammed and erased in-system or in-standard EPROM programmers.

FEATURES
• 262,144x8/131,072x16 switchable
• Fast access time: 70/90/120ns
• Low power consumption
    – 50mA maximum active current
    – 100uA maximum standby current
• Programming and erasing voltage 12V ± 7%
• Command register architecture
    – Byte/Word Programming (50 us typical)
    – Auto chip erase 5 sec typical (including preprogramming time)
    – Block Erase (Any one from 5 blocks:16K-Byte x1, 8K-Byte x2, 96K-Byte x1, and 128K-Byte x1)
    – Auto Erase with Erase Suspend capability
• Status Register feature for Device status detection
• Auto Erase (chip & block) and Auto Program
    – Status Registers
• 10,000 minimum erase/program cycles
• Latch-up protected to 100mA from -1 to VCC+1V
• Package type:
    – 44-pin SOP
    – 48-pin TSOP (Type 1)