w27e512 Winbond Electronics Corp America, w27e512 Datasheet - Page 8

• Manufacturer Part Number: w27e512
• Description: 64k X 8 Electrically Erasable Eprom
• Manufacturer: Winbond Electronics Corp America

TIMING WAVEFORMS
AC Read Waveform
Erase Waveform
Address
OE/Vpp
OE/Vpp
Outputs
Address
Data
CE
CE
Vcc
V
V
V
V
V
V
IH
IL
IH
IL
IH
IL
14.0V
V
V
5V
V
V
V
V
IH
IL
IH
IL
IH
IL
T
OE
T
High Z
T
CE
Read
Company
SID
A0=V
ACC
Others=V
A9=12.0V
DA
IL
T
T
Others=V
ACC
OE
A0=V IH
Read
Device
SID
IL
08
IL
T
VS
T
DS
T
T
T
Others=V
AS
OES
PRT
Data All One
A9= 14.0V
Chip Erase
T
PWE
T
IL
Address Valid
ACC
T
T
T
DH
OEH
AHC
- 8 -
T
T
V
VR
CE
T
IH
VCS
Address Valid
T
T
ACV
OE
T
OEV
=250 nS
D
=150 nS
OUT
Always=V
Erase Verify
3.75V
T
Address Valid
ACV
IL
=250 nS
D
OUT
Valid Output
V
IH
Address Valid
Blank Check
Read Verify
T
ACC
T
T
OH
OE
D
OUT
T
DF
W27E512
Address Valid
High Z