AT49BV802AT datasheet(22/29 Pages) ATMEL

22 / 29 page

AT49BV802A(T)

3405C–FLASH–9/04

Software Product Identification Entry

(1)

Software Product Identification Exit

(1)(6)

Notes:

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

Address Format: A11 - A0 (Hex), A-1, and A11 - A18 (Don’t

Care).

2. A1 - A18 = V

IL. Manufacturer Code is read for A0 = VIL;

Device Code is read for A0 = VIH.

The device does not remain in identification mode if powered

down.

The device returns to standard operation mode.

Manufacturer Code: 1FH(x8); 001FH(x16)

Device Code:

00C1H - AT49BV802A;

00C3H - AT49BV802AT.

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

LOAD DATA AA

ADDRESS 555

LOAD DATA 55

ADDRESS AAA

LOAD DATA 90

ADDRESS 555

ENTER PRODUCT

IDENTIFICATION

MODE(2)(3)(5)

LOAD DATA AA

ADDRESS 555

LOAD DATA 55

ADDRESS AAA

LOAD DATA F0

ADDRESS 555

EXIT PRODUCT

IDENTIFICATION

MODE(4)

LOAD DATA F0

ANY ADDRESS

EXIT PRODUCT

IDENTIFICATION

MODE(4)

Sector Lockdown Enable Algorithm

(1)

Notes:

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

Address Format: A11 - A0 (Hex), A-1, and A11 - A18

(Don’t Care).

Sector Lockdown feature enabled.

LOAD DATA AA

ADDRESS 555

LOAD DATA 55

ADDRESS AAA

LOAD DATA 80

ADDRESS 555

LOAD DATA AA

ADDRESS 555

LOAD DATA 55

ADDRESS AAA

LOAD DATA 60

SECTOR ADDRESS

PAUSE 200

µs(2)

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