20
AT49BV1604A(T)/1614A(T)
1411F–FLASH–03/02
Software Product Identification Entry
(1)
Software Product Identification Exit
(1)(6)
Notes: 1. Data Format: I/O15 - I/O8 (Don’t Care); I/O7 - I/O0 (Hex)
Address Format: A11 - A0 (Hex), A-1, and A11 - A19 (Don’t
Care).
2. A1 - A19 = V
IL
. Manufacturer Code is read for A0 = V
IL
;Device
Code is read for A0 = V
IH
.
Additional Device Code is read for address 0003H
3. The device does not remain in identification mode if
powered down.
4. The device returns to standard operation mode.
5. Manufacturer Code: 1FH(x8); 001FH(x16)
Device Code: C0H (x8) - AT49BV/LV16X4A;
00C0H (x16) - AT49BV/LV16X4A;
C2H (x8) - AT49BV/LV16X4AT;
00C2H (x16) - AT49BV/LV16X4AT.
Additional Device Code: C8H (x8) - AT49BV/LV16X4A(T)
00C8H (x16) - AT49BV/LV16X4A(T)
6. Either one of the Product ID Exit commands can be used.
LOAD DATA AA
TO
ADDRESS 555
LOAD DATA 55
TO
ADDRESS AAA
LOAD DATA 90
TO
ADDRESS 555
ENTER PRODUCT
IDENTIFICATION
MODE
(2)(3)(5)
LOAD DATA AA
TO
ADDRESS 555
LOAD DATA 55
TO
ADDRESS AAA
LOAD DATA F0
TO
ADDRESS 555
EXIT PRODUCT
IDENTIFICATION
MODE
(4)
OR
LOAD DATA F0
TO
ANY ADDRESS
EXIT PRODUCT
IDENTIFICATION
MODE
(4)
Sector Lockdown Enable Algorithm
(1)
Notes: 1. Data Format: I/O15 - I/O8 (Don’t Care); I/O7 - I/O0 (Hex)
Address Format: A11 - A0 (Hex), A-1, and A11 - A19 (Don’t
Care).
2. Sector Lockdown feature enabled.
LOAD DATA AA
TO
ADDRESS 555
LOAD DATA 55
TO
ADDRESS AAA
LOAD DATA 80
TO
ADDRESS 555
LOAD DATA AA
TO
ADDRESS 555
LOAD DATA 55
TO
ADDRESS AAA
LOAD DATA 60
TO
SECTOR ADDRESS
PAUSE 200 µs
(2)
