AT49F002 datasheet(14/16 Pages) ATMEL

Part #	AT49F002

Description	2-Megabit 256K x 8 5-volt Only Flash Memory

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Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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14 / 16 page

14

3354F–FLASH–2/05

AT49F002A(N)(T)

24. Software Product Identification

Entry(1)

25. Software Product Identification

Exit(1)

Notes:

1. Data Format: I/O7 - I/O0 (Hex);

Address Format: A14 - A0 (Hex).

2. A1 - A17 = VIL.

Manufacture Code is read for A0 = V

IL;

Device Code is read for A0 = V

IH.

Additional Device Code is read for address 0003H

3. The device does not remain in identification mode if

powered down.

4. The device returns to standard operation mode.

5. Manufacturer Code: 1FH

Device Code: 07H - AT49F002A(N)

08H - AT49F002A(N)T

Additional Device Code: 0FH - AT49F002A(N)(T)

LOAD DATA AA

TO

ADDRESS 555

LOAD DATA 55

TO

ADDRESS AAA

LOAD DATA 90

TO

ADDRESS 555

ENTER PRODUCT

IDENTIFICATION

MODE(2)(3)(5)

LOAD DATA AA

TO

ADDRESS 555

LOAD DATA 55

TO

ADDRESS AAA

LOAD DATA F0

TO

ADDRESS 555

EXIT PRODUCT

IDENTIFICATION

MODE(4)

OR

LOAD DATA F0

TO

ANY ADDRESS

EXIT PRODUCT

IDENTIFICATION

MODE(4)

26. Boot Block Lockout Feature Enable

Algorithm(1)

Notes:

1. Data Format: I/O7 - I/O0 (Hex);

Address Format: A14 - A0 (Hex).

2. Boot block lockout feature enabled.

LOAD DATA AA

TO

ADDRESS 555

LOAD DATA 55

TO

ADDRESS AAA

LOAD DATA 80

TO

ADDRESS 555

LOAD DATA AA

TO

ADDRESS 555

LOAD DATA 55

TO

ADDRESS AAA

LOAD DATA 40

TO

ADDRESS 555

PAUSE 1 second(2)

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