AT29BV040A-25 ATMEL Corporation, AT29BV040A-25 Datasheet - Page 9

• Manufacturer Part Number: AT29BV040A-25
• Description: 4 Megabit 512K x 8 Single 2.7-volt Battery-Voltage CMOS Flash Memory
• Manufacturer: ATMEL Corporation

Software Product
Identification Entry
Software Product
Identification Exit
Notes for software product identification:
1. Data Format: I/O7 - I/O0 (Hex);
2. A1 - A18 = V
3. The device does not remain in identification mode if
4. The device returns to standard operation mode.
5. Manufacturer Code is 1F. Device Code is C4.
Address Format: A14 - A0 (Hex).
Manufacture Code is read for A0 = V
Device Code is read for A0 = V
powered down.
IL
.
ADDRESS 2AAA
ADDRESS 2AAA
ADDRESS 5555
ADDRESS 5555
ADDRESS 5555
ADDRESS 5555
LOAD DATA AA
LOAD DATA AA
LOAD DATA 55
LOAD DATA 90
LOAD DATA 55
LOAD DATA F0
PAUSE 20 mS
PAUSE 20 mS
TO
TO
TO
TO
TO
TO
(1)
(1)
IH
.
IL
ENTER PRODUCT
IDENTIFICATION
MODE
EXIT PRODUCT
IDENTIFICATION
MODE
;
(2, 3)
(4)
Boot Block Lockout
Feature Enable Algorithm
Notes for boot block lockout feature enable:
1. Data Format: I/O7 - I/O0 (Hex);
2. Lockout feature set on lower address boot block.
3. Lockout feature set on higher address boot block.
Address Format: A14 - A0 (Hex).
ADDRESS 00000H
LOAD DATA 00
PAUSE 20 mS
TO
(2)
ADDRESS 2AAA
ADDRESS 2AAA
LOAD DATA AA
ADDRESS 5555
ADDRESS 5555
LOAD DATA AA
ADDRESS 5555
ADDRESS 5555
LOAD DATA 55
LOAD DATA 80
LOAD DATA 55
LOAD DATA 40
AT29BV040A
TO
TO
TO
TO
TO
TO
ADDRESS FFFFFH
LOAD DATA FF
PAUSE 20 mS
(1)
TO
(3)
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