at52br3244 ATMEL Corporation, at52br3244 Datasheet - Page 24

• Manufacturer Part Number: at52br3244
• Description: 32-megabit 2m X 16 Flash +4-megabit 256k X 16 / 8-megabit 512k X 16 Sram Stack Memory
• Manufacturer: ATMEL Corporation

Software Product Identification
Entry
Software Product Identification
Exit
Notes:
24
(1)(6)
(1)
1.
2.
3.
4.
5.
6.
IDENTIFICATION
EXIT PRODUCT
LOAD DATA AA
LOAD DATA 55
ADDRESS AAA
LOAD DATA F0
AT52BR3244(T)/3248(T)
ADDRESS 555
ADDRESS 555
Data Format: I/O15 - I/O8 (Don’t Care); I/O7 - I/O0 (Hex)
Address Format: A11 - A0 (Hex) and A11 - A20 (Don’t
Care).
A1 - A20 = V
Device Code is read for A0 = V
is read for address 0003H
The device does not remain in identification mode if pow-
ered down.
The device returns to standard operation mode.
Manufacturer Code: 001FH(x16) Device Code: 00D8H-
AT52BR3244/3248; 00D9H-AT52BR3244T/3248T.
Either one of the Product ID Exit commands can be used.
MODE
TO
TO
TO
(4)
ENTER PRODUCT
IL
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)
IH
IDENTIFICATION
EXIT PRODUCT
LOAD DATA F0
ANY ADDRESS
. Additional Device Code
MODE
TO
(4)
IL
;
Sector Lockdown Enable Algorithm
Notes:
1.
2.
Data Format: I/O15 - I/O8 (Don’t Care); I/O7 - I/O0 (Hex)
Address Format: A11 - A0 (Hex) and A11 - A20 (Don’t
Care).
Sector Lockdown feature enabled.
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)
2471E–STKD–10/02
(1)