w39l040a Winbond Electronics Corp America, w39l040a Datasheet - Page 20

• Manufacturer Part Number: w39l040a
• Description: 512k ? 8 Cmos Flash Memory
• Manufacturer: Winbond Electronics Corp America

Timing Waveforms, continued
8.5 Sector Erase Timing Diagram
8.6 #Data Polling Timing Diagram
Address A18-0
DQ7-0
#WE
#CE
#OE
Address A18-0
SA = Sector Address
#WE
#OE
#CE
DQ7
5555
SB0
T
WP
AA
An
T
WPH
X
2AAA
SB1
Six-byte commands for 3.3V-only
T
T
55
OEP
OEH
Sector Erase
T
5555
CEP
SB2
An
80
- 20 -
X
T
BP or
5555
SB3
T
EC
AA
2AAA
SB4
An
55
X
SB5
SA
30
Internal Erase starts
An
X
T
W39L040A
EP
T
OES