AT52BR1664AT Datasheet, PDF (25/35 Pages) ATMEL Corporation – 16-megabit Flash + 4-megabit SRAM Stack Memory

AT52BR1664A(T)
Software Product Identification Entry⁽¹⁾
LOAD DATA AA
TO
ADDRESS 555
Sector Lockdown Enable Algorithm⁽¹⁾
LOAD DATA AA
TO
ADDRESS 555
LOAD DATA 55
TO
ADDRESS AAA
LOAD DATA 55
TO
ADDRESS AAA
LOAD DATA 90
TO
ADDRESS 555
LOAD DATA 80
TO
ADDRESS 555
ENTER PRODUCT
IDENTIFICATION
MODE^(2)(3)(5)
Software Product Identification Exit⁽¹⁾⁽⁶⁾
LOAD DATA AA
OR
TO
ADDRESS 555
LOAD DATA F0
TO
ANY ADDRESS
LOAD DATA 55
TO
ADDRESS AAA
EXIT PRODUCT
IDENTIFICATION
MODE⁽⁴⁾
LOAD DATA F0
TO
ADDRESS 555
Notes:
EXIT PRODUCT
IDENTIFICATION
MODE⁽⁴⁾
1. Data Format: I/O15 - I/O8 (Don’t Care); I/O7 - I/O0 (Hex)
Address Format: A11 - A0 (Hex), 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.
3. The device does not remain in identification mode if powered
down.
4. The device returns to standard operation mode.
5. Manufacturer Code: 001FH(x16)
Device Code: 00C0H (x16) - Bottom Boot;
00C2H (x16) - Top Boot.
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 60
TO
SECTOR ADDRESS
PAUSE 200 µs⁽²⁾
Notes:
1. Data Format: I/O15 - I/O8 (Don’t Care); I/O7 - I/O0 (Hex)
Address Format: A11 - A0 (Hex), and A11 - A19 (Don’t
Care).
2. Sector Lockdown feature enabled.
25
3361C–STKD–1/04