AT49BV008A 데이터 시트보기 (PDF) - Atmel Corporation

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AT49BV008A

8-Megabit (1M x 8/512K x 16) CMOS Flash Memory

Atmel Corporation 

AT49BV008A(T)/8192A(T)

Software Product Identification Entry(1)

LOAD DATA AA

TO

ADDRESS 5555(7)

LOAD DATA 55

TO

ADDRESS 2AAA(7)

Boot Block

Lockout Enable Algorithm(1)

LOAD DATA AA

TO

ADDRESS 5555(3)

LOAD DATA 55

TO

ADDRESS 2AAA(3)

LOAD DATA 90

TO

ADDRESS 5555(7)

LOAD DATA 80

TO

ADDRESS 5555(3)

ENTER PRODUCT

IDENTIFICATION

MODE(2)(3)(5)

Software Product Identification Exit(1)(6)

LOAD DATA AA

OR

TO

ADDRESS 5555(7)

LOAD DATA F0

TO

ANY ADDRESS

LOAD DATA 55

TO

ADDRESS 2AAA(7)

EXIT PRODUCT

IDENTIFICATION

MODE(4)

LOAD DATA F0

TO

ADDRESS 5555(7)

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: 1FH

Device Code: 22H (AT49BV008A), A0H (AT49BV8192A),

21H (AT49BV008AT), A3H (AT49BV8192AT)

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

7. If the alternate pin definition is used,

5555 should be replaced with A555,

2AAA should be replaced with 5AAA.

LOAD DATA AA

TO

ADDRESS 5555(3)

LOAD DATA 55

TO

ADDRESS 2AAA(3)

LOAD DATA 40

TO

ADDRESS 5555(3)

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.

3. If the alternate pin definition is used,

5555 should be replaced with A555,

2AAA should be replaced with 5AAA.

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