W49V002FAQ

W49V002FA

256K × 8 CMOS FLASH MEMORY WITH FWH INTERFACE

GENERAL DESCRIPTION

The W49V002FA is a 2-megabit, 3.3-volt only CMOS flash memory organized as 256K × 8 bits. The device can be programmed and erased in-system with a standard 3.3V power supply. A 12-volt VPP is not required. The unique cell architecture of the W49V002FA results in fast program/erase operations with extremely low current consumption. This device can operate at two modes, Programmer bus interface mode and FWH bus interface mode. As in the Programmer interface mode, it acts like the traditional flash but with a multiplexed address inputs. But in the FWH interface mode, this device complies with the Intel FWH specification. The device can also be programmed and erased using standard EPROM programmers.

FEATURES

• Single 3.3-volt operations:

• Two 8K bytes Parameter Blocks

• Four main memory blocks (with 32K bytes, 64K bytes, 64K bytes, 64K bytes each)

− 3.3-volt Read

− 3.3-volt Erase

• Low power consumption

− 3.3-volt Program

− Active current: 40 mA (typ. for FWH)

• Fast program operation:

• Automatic program and erase timing with internal VPP generation