w49v002a Winbond Electronics Corp America, w49v002a Datasheet - Page 18

• Manufacturer Part Number: w49v002a
• Description: 256k X 8 Cmos Flash Memory With Lpc Interface
• Manufacturer: Winbond Electronics Corp America

Timing Waveforms for Programmer Interface Mode, continued
Program Cycle Timing Diagram
#DATA Polling Timing Diagram
(Internal A[17:0])
(Internal A[17:0])
Note: The internal address A[17:0] are converted from external Column/Row address.
Column/Row Address are mapped to the Low/High order internal address.
i.e. Column Address A[10:0] are mapped to the internal A[10:0],
A[10:0]
DQ[7:0]
A[10:0]
#WE
#OE
Row Address A[6:0] are mapped to the internal A[17:11].
R/
R/
#OE
DQ7
#WE
#C
#C
An
X
5555
Byte 0
T
WP
AA
T
WPH
T
OEP
An
2AAA
Byte 1
55
X
- 18 -
T
BP or
5555
Byte 2
Byte Program Cycle
T
EC
A0
Programmed Address
Preliminary W49V002A
Byte 3
Data-In
An
Internal Write Start
X
T
BP
An
X