W49F020 Datasheet (Winbond) - 256K x 8 CMOS FLASH MEMORY

W49F020, 256K x 8 CMOS FLASH MEMORY

The W49F020 is a 2-megabit, 5-volt only CMOS flash memory organized as 256K × 8 bits.

The device can be programmed and erased in-system with a standard 5V power supply.

A 12-volt VPP is not required.

The unique cell architecture of the W49F020 results in fast program/erase operations with extremely

W49F020 Features

* Single 5-volt operations:

* 5-volt Read

* 5-volt Erase

* 5-volt Program

* Fast Program operation:

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

* Fast Erase operation: 100 mS (typ.)

* Fast Read access time: 70/90 nS

* Endurance: 1K