AT49BV320 ATMEL [ATMEL Corporation], AT49BV320 Datasheet - Page 25

• Manufacturer Part Number: AT49BV320
• Description: 32-megabit (2M x 16/4M x 8) 3-volt Only Flash Memory
• Manufacturer: ATMEL [ATMEL Corporation]

Software Product Identification
Entry
Software Product Identification
Exit
Notes:
1494H–FLASH–01/03
(1)(6)
(1)
1. Data Format: I/O15 - I/O8 (Don’t Care); I/O7 - I/O0 (Hex)
2.
3. The device does not remain in identification mode if pow-
4. The device returns to standard operation mode.
5. Manufacturer Code: 1FH(x8); 001FH(x16)
6. Either one of the Product ID Exit commands can be used.
IDENTIFICATION
EXIT PRODUCT
LOAD DATA AA
LOAD DATA 55
ADDRESS AAA
LOAD DATA F0
ADDRESS 555
ADDRESS 555
Address Format: A11 - A0 (Hex), A-1, and A11 - A20
(Don’t Care).
A1 - A20 = V
Device Code is read for A0 = V
ered down.
Device Code: C8 (x8) - AT49BV/LV32X;
MODE
TO
TO
TO
(4)
00C9H (x16) - AT49BV/LV32XT.
ENTER PRODUCT
IL
00C8 (x16) - AT49BV/LV32X;
C9H (x8) - AT49BV/LV32XT;
IDENTIFICATION
LOAD DATA AA
ADDRESS AAA
. Manufacturer Code is read for A0 = V
ADDRESS 555
LOAD DATA 55
LOAD DATA 90
ADDRESS 555
MODE
OR
TO
TO
TO
(2)(3)(5)
IDENTIFICATION
IH
EXIT PRODUCT
LOAD DATA F0
ANY ADDRESS
.
MODE
TO
(4)
IL
;
Sector Lockdown Enable Algorithm
Notes:
1. Data Format: I/O15 - I/O8 (Don’t Care); I/O7 - I/O0 (Hex)
2. Sector Lockdown feature enabled.
AT49BV/LV320(T)/321(T)
Address Format: A11 - A0 (Hex), A-1, and A11 - A20
(Don’t Care).
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)
(1)
25