ST M29F040B 4 Mbit (512Kb x8 Uniform Block) Single Supply Flash Memory handbook
Datasheet
M29F040B is a 4 Mbit (512Kb x 8, Uniform Block) single supply flash memory chip. It has a single 5V ± 10% power supply voltage, fast read/write operation time, 8 uniform 64 Kbytes storage blocks, supported program/erase controller, supported erase suspend/resume mode, low power consumption and 100,000 program/erase cycles.
