AT49F020 데이터 시트보기 (PDF) - Atmel Corporation

부품명

상세내역

일치하는 목록

AT49F020

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

Atmel Corporation 

AT49F020

Software Product Identification Entry(1)

LOAD DATA AA

TO

ADDRESS 5555

LOAD DATA 55

TO

ADDRESS 2AAA

LOAD DATA 90

TO

ADDRESS 5555

ENTER PRODUCT

IDENTIFICATION

MODE(2)(3)(5)

Software Product Identification Exit(1)

LOAD DATA AA

OR

LOAD DATA F0

TO

TO

ADDRESS 5555

ANY ADDRESS

Boot Block Lockout

Feature Enable Algorithm(1)

LOAD DATA AA

TO

ADDRESS 5555

LOAD DATA 55

TO

ADDRESS 2AAA

LOAD DATA 80

TO

ADDRESS 5555

LOAD DATA AA

TO

ADDRESS 5555

LOAD DATA 55

TO

ADDRESS 2AAA

LOAD DATA 55

TO

ADDRESS 2AAA

EXIT PRODUCT

IDENTIFICATION

MODE(4)

LOAD DATA 40

TO

ADDRESS 5555

LOAD DATA F0

TO

ADDRESS 5555

EXIT PRODUCT

IDENTIFICATION

MODE(4)

Notes for software product identification:

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

Address Format: A14 - A0 (Hex).

2. A1 - A17 = VIL.

Manufacturer 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 is 1FH. The Device Code is

0BH.

PAUSE 1 second(2)

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.

9

Share Link: