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W49V002FA

256K

脳

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

脳

8 bits. The

device can be programmed and erased in-system with a standard 3.3V power supply. A 12-volt V

PP

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

鈥?/div>

Single 3.3-volt operations:

鈭?/div>

3.3-volt Read

鈭?/div>

3.3-volt Erase

鈭?/div>

3.3-volt Program

鈥?/div>

Two 8K bytes Parameter Blocks

Four main memory blocks (with 32K bytes, 64K

bytes, 64K bytes, 64K bytes each)

Low power consumption

鈭?/div>

Active current: 40 mA (typ. for FWH)

Automatic program and erase timing with

internal V

PP

generation

End of program or erase detection

鈭?/div>

Toggle bit

鈭?/div>

Data polling

鈥?/div>

Fast program operation:

鈭?/div>

Byte-by-byte programming: 50

碌S

(typ.)

Fast erase operation: 150 mS (typ.)

Fast read access time: Tkq 11 nS

Endurance: 10K cycles (typ.)

Twenty-year data retention

Hardware data protection

鈭?/div>

#TBL & #WP serve as hardware protection

One 16K bytes Boot Block with lockout

protection

鈥?/div>

Latched address and data

TTL compatible I/O

Available packages: 32L PLCC, 32L STSOP

-1-

Publication Release Date: February 19, 2002

Revision A2

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