W39L040 Datasheet (Winbond) - 512K x 8 CMOS FLASH MEMORY

W39L040, 512K x 8 CMOS FLASH MEMORY

The W39L040 is a 4Mbit, 3.3-volt only CMOS flash memory organized as 512K × 8 bits.

For flexible erase capability, the 4Mbits of data are divided into 8 uniform sectors of 64 Kbytes, which are composed of 16 smaller even pages with 4 Kbytes.

The byte-wide (× 8) data appears on DQ7 * DQ0.

The

W39L040 Features

* Single 3.3-volt operations

* 3.3-volt Read

* 3.3-volt Erase

* 3.3-volt Program

* Fast Program operation:

* Byte-by-Byte programming: 50 µS (max.)

* Fast Erase operation:

* Chip Erase cycle time: 100 mS (max.)

* Sector Erase cy