AT49F004 Ver la hoja de datos (PDF) - Atmel Corporation

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componentes Descripción

Fabricante

AT49F004

4-Megabit (512K x 8/256K x 16) CMOS Flash Memory

Atmel Corporation 

Software Product Identification Entry(1)

LOAD DATA AA

TO

ADDRESS 5555

Boot Block

Lockout Enable Algorithm(1)

LOAD DATA AA

TO

ADDRESS 5555

LOAD DATA 55

TO

ADDRESS 2AAA

LOAD DATA 55

TO

ADDRESS 2AAA

LOAD DATA 90

TO

ADDRESS 5555

LOAD DATA 80

TO

ADDRESS 5555

ENTER PRODUCT

IDENTIFICATION

MODE(2)(3)(5)

Software Product Identification Exit(1)(6)

LOAD DATA AA

OR

TO

ADDRESS 5555

LOAD DATA F0

TO

ANY ADDRESS

LOAD DATA 55

TO

ADDRESS 2AAA

EXIT PRODUCT

IDENTIFICATION

MODE(4)

LOAD DATA AA

TO

ADDRESS 5555

LOAD DATA 55

TO

ADDRESS 2AAA

LOAD DATA 40

TO

ADDRESS 5555

LOAD DATA F0

TO

ADDRESS 5555

EXIT PRODUCT

IDENTIFICATION

MODE(4)

Notes:

1. Data Format: I/O15 - I/O8 (Don’t Care); I/O7 - I/O0 (Hex)

Address Format: A15 - A0 (Hex), A-1, and A15 - A18

(Don’t Care).

2. A1 - A18 = VIL.

Manufacture Code is read for A0 = VIL;

Device Code is read for A0 = VIH.

3. The device does not remain in identification mode if pow-

ered down.

4. The device returns to standard operation mode.

5. Manufacturer Code: 161FH

Device Code: 11H (AT49F004), 1692H (AT49F4096A),

1692H (AT49F004T), 1690H (AT49F4096AT)

6. Either one of the Product ID Exit commands can be used.

12

AT49F004(T)/4096A(T)

PAUSE 1 second(2)

Notes:

1. Data Format: I/O15 - I/O8 (Don’t Care); I/O7 - I/O0 (Hex)

Address Format: A15 - A0 (Hex), A-1, and A15 - A18

(Don’t Care).

2. Boot block lockout feature enabled.

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