Datasheet Summary
M29W640FT M29W640FB
64 Mbit (8Mb x8 or 4Mb x16, Page, Boot Block) 3V Supply Flash Memory
Feature summary
Supply voltage VCC = 2.7V to 3.6V for Program, Erase,
Read VPP =12 V for Fast Program (optional) Asynchronous Random/Page Read Page Width: 4 Words Page Access: 25ns Random Access: 60ns, 70ns
Programming time 10 s per Byte/Word typical 4 Words / 8 Bytes Program
135 Memory Blocks 1 Boot Block and 7 Parameter Blocks,
8 KBytes each (Top or Bottom location) 127 Main Blocks, 64 KBytes each
Program/Erase Controller Embedded Byte/Word Program algorithms
Program/Erase Suspend and Resume Read from any Block during Program
Suspend Read and Program another Block...