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Компоненты Описание
W27E520 Просмотр технического описания (PDF) - Winbond
Номер в каталоге
Компоненты Описание
производитель
W27E520
64K x 8 ELECTRICALLY ERASABLE EPROM
Winbond
W27E520 Datasheet PDF : 16 Pages
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W27E520
Timing Waveforms, continued
Erase Waveform 1
V
IH
A[15:8]
V
IL
V
IH
AD[7:0]
V
IL
13.0V
OE/Vpp
V
IH
V
IL
ALE
V
IH
V
IL
Read
Company
SID
Read
Device
SID
V
DD
= 5.0V
A9 = 12.0V
Others = V
IL
or V
IH
A8 = V
IL
A8 = V
IH
Chip Erase
V
DD
= 6.5V
A9 = 13.0V
Others = V
IL
or V
IH
A8, A11 = V
IL
A10 = V
IH
Erase (Verify)
V
DD
= 6.5V
Address Valid
DA
1F
T
PRT
Add
T
VR
D
OUT
T
EOE
T
OES
T
OEH
T
EPW
Erase Waveform 2
V
IH
A[15:8]
V
IL
OE/Vpp
V
IH
V
IL
V
IH
V
IL
V
IH
AD[7:0]
V
IL
Read
Company
SID
Read
Device
SID
V
DD
=5.0V
A9=12.0
V
Others=V
IL
or V
IH
A8=V
IL
A8=V
IH
Chip Erase
Command 1
Command 2
V
DD
=6.5V
V
DD
=6.5V
T
AS
A[15:8] = 55
A[15:8] = 2A
T
RPT
T
VS
T
PRT
T
OES
T
OEH
T
OES
DA
T
ALE
T
LAS
T
LAH
T
EPW1
T
DS
T
DH
1F
55
AA
AA
T
EPW2
10
Erase Verify
V
DD
=6.5V
Address Valid
T
EOE
Add
D
OUT
Note: First command Address = 5555(hex) with Data = AA(hex)
Second command Address = 2AAA(hex) with Data = 10(hex)
-9-
Publication Release Date: September 2000
Revision A2
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