Rainbow Electronics AT29C257 - Manual (Page 10)

PAUSE 10 mS
LOAD DATA 90
TO
ADDRESS 5555
LOAD DATA 55
TO
ADDRESS 2AAA
LOAD DATA AA
TO
ADDRESS 5555
Notes for software product identification:
1. Data Format: I/O7 - I/O0 (Hex);
Address Format: A14 - A0 (Hex).
2. A1 - A14 = V
IL
.
Manufacture 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: 1F
Device Code: DC
ENTER PRODUCT
IDENTIFICATION
MODE
(2, 3, 5)
Software Product
Identification Entry
(1)
PAUSE 10 mS
LOAD DATA F0
TO
ADDRESS 5555
LOAD DATA 55
TO
ADDRESS 2AAA
LOAD DATA AA
TO
ADDRESS 5555
EXIT PRODUCT
IDENTIFICATION
MODE
(4)
Software Product
Identification Exit
(1)
4-114
AT29C257