w39l020 Winbond Electronics Corp America, w39l020 Datasheet - Page 8

• Manufacturer Part Number: w39l020
• Description: 256k U 8 Cmos Flash Memory
• Manufacturer: Winbond Electronics Corp America

7. TABLE OF OPERATING MODES
Device Bus Operations
(V
Auto-select Codes (High Voltage Method)
(V
Sector Address Table
Note: All sectors are 64K bytes in size.
Read
Write
Standby
Write Inhibit
Output Disable
Auto select Manufacturers ID
Auto select Device ID
Manufacturer ID: Winbond
Device ID: W39L020
ID
ID
= 12 r 0.5V)
= 12 r 0.5V)
SECTOR
DESCRIPTION
SA0
SA1
SA2
SA3
MODE
A17
0
0
1
1
#CE
#CE #OE #WE
V
V
V
V
V
V
V
V
A16
X
X
IL
IL
IH
IL
IL
IL
IL
IL
0
1
0
1
#OE
V
V
V
V
V
V
V
V
X
X
IH
IH
IL
IL
IL
IL
IL
IL
SECTOR SIZE
(KBYTES)
V
V
V
V
V
V
#WE
X
X
IH
IH
IH
IH
V
V
IH
IL
64
64
64
64
- 8 -
IH
IH
V
A0
V
A0
A0
X
X
X
X
IH
IL
V
V
A9
ID
ID
A1
V
V
A1
A1
X
X
X
X
IL
IL
THE OTHER ADDRESS
A1 = V
PIN
V
V
A9
A9
A9
X
X
X
X
All Add = V
ID
ID
IH
, All other = V
00000h  0FFFFh
10000h  1FFFFh
20000h  2FFFFh
30000h  3FFFFh
ADDRESS
IL
DQ0  DQ7
High Z/
High Z/
High Z
High Z
Code
Code
Dout
W39L020
IL
Din
Dout
Dout
DQ[7:0]
DAhex
B5hex