at49bv802a ATMEL Corporation, at49bv802a Datasheet - Page 24

• Manufacturer Part Number: at49bv802a
• Description: 8-megabit 512k X 16/ 1m X 8 3-volt Only Flash Memory
• Manufacturer: ATMEL Corporation

28. Software Product Identification
29. Software Product Identification
Notes:
24
Entry
Exit
1.
2.
3.
4.
5.
6.
AT49BV802A(T)
IDENTIFICATION
LOAD DATA AA
EXIT PRODUCT
ADDRESS AAA
LOAD DATA F0
LOAD DATA 55
ADDRESS 555
ADDRESS 555
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).
A1 - A18 = V
Device Code is read for A0 = V
The device does not remain in identification mode if pow-
ered 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.
(1)(6)
MODE
(1)
TO
TO
TO
(4)
IL
. Manufacturer Code is read for A0 = V
ENTER PRODUCT
IDENTIFICATION
LOAD DATA AA
ADDRESS 555
LOAD DATA 55
ADDRESS AAA
LOAD DATA 90
ADDRESS 555
MODE
OR
TO
TO
TO
(2)(3)(5)
IH
IDENTIFICATION
EXIT PRODUCT
ANY ADDRESS
LOAD DATA F0
.
MODE
TO
(4)
IL
;
30. Sector Lockdown Enable
Notes:
Algorithm
1.
2.
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.
(1)
SECTOR ADDRESS
PAUSE 200 µs
LOAD DATA AA
LOAD DATA AA
LOAD DATA 55
ADDRESS AAA
LOAD DATA 80
LOAD DATA 55
ADDRESS AAA
LOAD DATA 60
ADDRESS 555
ADDRESS 555
ADDRESS 555
TO
TO
TO
TO
TO
TO
(2)
3405E–FLASH–2/07