W29C040 Datasheet - Winbond

W29C040 512K X 8 CMOS FLASH MEMORY

The W29C040 is a 4-megabit, 5-volt only CMOS page mode EEPROM organized as 512K × 8 bits. The device can be written (erased and programmed) in-system with a standard 5V power supply. A 12-volt VPP is not required. The unique cell architecture of the W29C040 results in fast write (erase/ program) ope.

W29C040 Features

* Single 5-volt write (erase and program) operations Fast page-write operations

* 256 bytes per page

* Page write (erase/program) cycle: 5 mS (typ.)

* Effective byte-write (erase/program) cycle time: 19.5 µS

* Optional software-protected data write

W29C040_Winbond.pdf