29C040 View Datasheet(PDF) - Atmel Corporation
Part Name
Description
Manufacturer
29C040 Datasheet PDF : 11 Pages
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Software Product
Identification Entry (1)
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)
Software Product
Identification Exit (1)
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)
Notes for software product identification:
1. Data Format: I/O7 - I/O0 (Hex);
Address Format: A14 - A0 (Hex).
2. A1 - A18 = VIL.
Manufacture 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: 1F
Device Code: A4
Boot Block Lockout
Feature Enable Algorithm (1)
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 FFFFFH (3)
PAUSE 10 mS
Notes for boot block lockout feature enable:
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.
4-174
AT29C040A
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