w27e520 Winbond Electronics Corp America, w27e520 Datasheet - Page 8
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w27e520
Manufacturer Part Number
w27e520
Description
64k X 8 Electrically Erasable Eprom
Manufacturer
Winbond Electronics Corp America
Datasheet
1.W27E520.pdf
(16 pages)
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TIMING WAVEFORMS
AC Read Waveform
Programming Waveform
OE/Vpp
AD[7:0]
A[15:8]
ALE
A8-A15
AD0-AD7
OE/Vpp
ALE
13V
V
V
V
V
V
V
V
V
IH
IH
IH
IH
IL
IL
IL
IL
V IH
V IL
V IH
V IL
V IH
V IL
T
LAS
T
ALE
High Z
T
T
RPT
VS
Add
T
AS
PROGRAM
T
LAH
T
ALE
T
AS
Address
T
T
Data in
OES
DS
T
T
PPW
ACC
T
T
AH
OEH
- 8 -
T
CE
Address Stable
T
T
OE
DH
T
Address Valid
VR
Data
T
ALE
T
OH
Add
T
T
DF
POE
PROGRAM (VERIFY)
Data out
W27E520
T
DFP
T
High Z
AH