W27E257-15 WINBOND [Winbond], W27E257-15 Datasheet - Page 8

• Manufacturer Part Number: W27E257-15
• Description: 32K X 8 ELECTRICALLY ERASABLE EPROM
• Manufacturer: WINBOND [Winbond]

TIMING WAVEFORMS
AC Read Waveform
Erase Waveform
Address
Address
Outputs
Data
V
CE
OE
CE
OE
PP
14.0V
5.0V
V
V
V
V
V
V
V
V
V
V
V
V
IH
IL
IH
IL
IH
IL
IH
IH
IH
IL
IL
IL
High Z
Manufacturer
T
CE
T
OE
T
A0 = V
ACC
Others = V
Read
SID
A0= V
DA
A9 = 12.0V
IL
T
OE
IH
T
Others = V
ACC
IL
Device
SID
Read
02
IL
T
T
T
VPS
AS
DS
Others = V
Chip Erase
A9 = 14.0V
Data All One
T
T
T
Address Valid
ACC
PWE
ARC
- 8 -
IL
T
CE
T
T
OES
AHC
T
OE
Address
Stable
Erase Verify
T
T
OEV
DFP
D
OUT
T
AH
Address
Stable
D
Valid Output
OUT
T
T
ACC
T
Blank Check
Read Verify
OH
OE
Address
Stable
T
D
DF
OUT
W27E257
High Z
5V