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AT29C040A-12TU Datasheet(PDF) 13 Page - ATMEL Corporation

Part # AT29C040A-12TU
Description  4-megabit (512K x 8) 5-volt Only 256-byte Sector Flash Memory
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT29C040A-12TU Datasheet(HTML) 13 Page - ATMEL Corporation

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0333L–FLASH–9/08
AT29C040A
25. Software Product Identification
Entry
(1)
26. Software Product Identification
Exit(1)
Notes:
1. Data Format: I/O7 - I/O0 (Hex);
Address Format: A14 - A0 (Hex).
2. A1 - A18 = VIL.
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 is 1F. The Device Code is A4.
LOAD DATA AA
TO
ADDRESS 5555
LOAD DATA 55
TO
ADDRESS 2AAA
LOAD DATA 90
TO
ADDRESS 5555
PAUSE 10 mS
ENTER PRODUCT
IDENTIFICATION
MODE(2)(3)(5)
LOAD DATA AA
TO
ADDRESS 5555
LOAD DATA 55
TO
ADDRESS 2AAA
LOAD DATA F0
TO
ADDRESS 5555
PAUSE 10 mS
EXIT PRODUCT
IDENTIFICATION
MODE(4)
27. Boot Block Lockout
Feature Enable Algorithm
(1)
Notes:
1. Data Format: I/O7 - I/O0 (Hex);
Address Format: A14 - A0 (Hex).
2. Lockout feature set on lower address boot block.
3. Lockout feature set on higher address boot block.
LOAD DATA AA
TO
ADDRESS 5555
LOAD DATA 55
TO
ADDRESS 2AAA
LOAD DATA 80
TO
ADDRESS 5555
LOAD DATA AA
TO
ADDRESS 5555
LOAD DATA 55
TO
ADDRESS 2AAA
LOAD DATA 40
TO
ADDRESS 5555
LOAD DATA 00
TO
ADDRESS 00000H(2)
PAUSE 10 mS
LOAD DATA FF
TO
ADDRESS 7FFFFH(3)
PAUSE 10 mS


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