at29c257 ATMEL Corporation, at29c257 Datasheet - Page 10
at29c257
Manufacturer Part Number
at29c257
Description
256k 32k X 8 5-volt Only Cmos Flash Memory
Manufacturer
ATMEL Corporation
Datasheet
1.AT29C257.pdf
(12 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
at29c257-12JC
Manufacturer:
ATM
Quantity:
2 300
Company:
Part Number:
at29c257-12JC
Manufacturer:
ATM
Quantity:
2 300
Company:
Part Number:
at29c257-12JC
Manufacturer:
ATMEL
Quantity:
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Part Number:
at29c257-12JC
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
at29c257-12JI
Manufacturer:
SILICON
Quantity:
1 001
Company:
Part Number:
at29c257-12JI
Manufacturer:
ATM
Quantity:
2 340
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)