W27E020-70 WINBOND [Winbond], W27E020-70 Datasheet - Page 9

• Manufacturer Part Number: W27E020-70
• Description: 256K X 8 ELECTRICALLY ERASABLE EPROM
• Manufacturer: WINBOND [Winbond]

Timing Waveforms, continued
Programming Waveform
Address
Data
PGM
V
CE
OE
PP
12.0V
5.0V
V
V
V
V
V
V
V
V
IH
IH
IH
IL
IL
IH
IL
IL
T
VPS
T
AS
T
T
CES
Data In Stable
DS
Address Stable
Program
T
PWP
T
DH
T
OES
T
OEV
Program
Verify
D
OUT
T
T
AH
DFP
- 9 -
Address Stable
D
OUT
Publication Release Date: December 1997
Preliminary W27E020
T
ACC
T
Address Valid
OE
Read
Verify
D
OUT
5V
Revision A1