F49L004UA-70N datasheet(8/46 Pages) ESMT

Part #	F49L004UA-70N

Description	4 Mbit (512K x 8) 3V Only CMOS Flash Memory

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Manufacturer	ESMT [Elite Semiconductor Memory Technology Inc.]

Direct Link	http://www.esmt.com.tw/index.asp

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8 / 46 page

EFST

preliminary

F49L004UA / F49L004BA

Elite Flash Storage Technology Inc.

Publication Date : Aug. 2003

Revision: 0.2

8/46

Temporary Sector Unprotect Mode

This feature allows temporary unprotection of previously

protected sector to change data in-system. This mode is

activated by setting the

ESET

R

pin to V

ID(11.5V-12.5V).

During this mode, all formerly protected sectors are un-

protected and can be programmed or erased by selecting

the sector addresses. Once V

ID is removed from the

ESET

R

pin, all the previously protected sectors are

protected again.

Notes:

1. All protected sectors unprotected.

2. All previously protected sectors are protected once again.

Start

RESET = VID (Note 1)

Perform Erase or

Program Operations

RESET = VIH

Temporary Sector

Unprotect Completed

(Note 2)

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F49L004UA-70N Datasheet(PDF) 8 Page - Elite Semiconductor Memory Technology Inc.

F49L004UA-70N Datasheet(HTML) 8 Page - Elite Semiconductor Memory Technology Inc.

Similar Part No. - F49L004UA-70N

Similar Description - F49L004UA-70N

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