AT49F040T-70PI datasheet(9/10 Pages) ATMEL

9 / 10 page

ENTER PRODUCT

IDENTIFICATION

MODE (2, 3, 5)

LOAD DATA 90

ADDRESS 5555

LOAD DATA 55

ADDRESS 2AAA

LOAD DATA AA

ADDRESS 5555

Notes for software product identification:

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

Address Format: A14 - A0 (Hex).

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

powered down.

4. The device returns to standard operation mode.

5. Manufacturer Code: 1FH

Device Code: 13H

Software Product

Identification Entry

(1)

LOAD DATA 80

ADDRESS 5555

LOAD DATA 55

ADDRESS 2AAA

Boot Block Lockout

Feature Enable Algorithm

(1)

Notes for boot block lockout feature enable:

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

Address Format: A14 - A0 (Hex).

2. Boot block lockout feature enabled.

LOAD DATA AA

ADDRESS 5555

LOAD DATA 55

ADDRESS 2AAA

LOAD DATA AA

ADDRESS 5555

PAUSE 1 second (2)

LOAD DATA 40

ADDRESS 5555

LOAD DATA F0

ADDRESS 5555

LOAD DATA 55

ADDRESS 2AAA

LOAD DATA AA

ADDRESS 5555

Software Product

Identification Exit

(1)

EXIT PRODUCT

IDENTIFICATION

MODE (4)

LOAD DATA F0

ANY ADDRESS

EXIT PRODUCT

IDENTIFICATION

MODE (4)

AT49F040

4-217

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