w39l040p-90k Winbond Electronics Corp America, w39l040p-90k Datasheet - Page 14
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w39l040p-90k
Manufacturer Part Number
w39l040p-90k
Description
Manufacturer
Winbond Electronics Corp America
Datasheet
1.W39L040P-90K.pdf
(27 pages)
- Current page: 14 of 27
- Download datasheet (329Kb)
Software Product Identification and Boot Block Lockout Detection Flow Chart
Entry (1)
Identification
Product
address 5555
address 5555
address 2AAA
Pause 10 S
Load data AA
Load data 55
Load data 90
to
to
to
µ
Identification
and Boot Block
Lockout
Mode (3)
D t ti
Product
Read address=02/7FFF2
data:in DQ0="1" or "0"
Read address = 0001
for Bottom/Top
Read address = 0000
for 64K Boot Block
for 16K Boot Block
or DQ1="1" or "0"
data = B6
data = DA
- 14 -
(4)
(2)
(2)
Product
Identification Exit(6)
Normal Mode
address 5555
Load data
55
Load data AA
address 2AAA
address 5555
Load data F0
Pause 10 S
to
to
to
µ
W39L040
(5)
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