Software Product Identification Entry(1)
Software Product Identification Exit(1)
LOAD DATA AA
LOAD DATA AA
TO
TO
ADDRESS 5555
ADDRESS 5555
LOAD DATA 55
TO
LOAD DATA 55
TO
ADDRESS 2AAA
ADDRESS 2AAA
LOAD DATA 90
TO
LOAD DATA F0
TO
ADDRESS 5555
ADDRESS 5555
PAUSE 10 mS
ENTER PRODUCT
IDENTIFICATION
MODE(2)(3)(5)
PAUSE 10 mS
EXIT PRODUCT
IDENTIFICATION
MODE(4)
Notes: 1. Data Format: I/O7 - I/O0 (Hex);
Address Format: A14 - A0 (Hex).
2. A1 - A14 = VIL.
Manufacturer Code is read for A0 = VIL;
Device Code is read for A0 = VIH.
3. The device does not remain in identification mode if
powered down.
4. The device returns to standard operation mode.
5. Manufacturer Code is 1F. The Device Code is DC.
12
AT29C256
0046P–FLASH–10/04
ATMEL [ ATMEL ]
