AT29C257-12 ATMEL Corporation, AT29C257-12 Datasheet - Page 10

• Manufacturer Part Number: AT29C257-12
• Description: 256K 32K x 8 5-volt Only CMOS Flash Memory
• Manufacturer: ATMEL Corporation

Notes for software product identification:
1. Data Format: I/O7 - I/O0 (Hex);
2. A1 - A14 = V
3. The device does not remain in identification mode if
4. The device returns to standard operation mode.
5. Manufacturer Code: 1F
Software Product
Identification Entry
4-114
Address Format: A14 - A0 (Hex).
Manufacture Code is read for A0 = V
Device Code is read for A0 = V
powered down.
Device Code: DC
IL
.
ADDRESS 2AAA
ADDRESS 5555
ADDRESS 5555
LOAD DATA AA
LOAD DATA 55
LOAD DATA 90
PAUSE 10 mS
TO
TO
TO
AT29C257
(1)
IH
.
IL;
ENTER PRODUCT
IDENTIFICATION
MODE
(2, 3, 5)
Software Product
Identification Exit
ADDRESS 2AAA
LOAD DATA AA
ADDRESS 5555
ADDRESS 5555
LOAD DATA F0
LOAD DATA 55
PAUSE 10 mS
TO
TO
TO
(1)
EXIT PRODUCT
IDENTIFICATION
MODE
(4)