w39l040a Winbond Electronics Corp America, w39l040a Datasheet - Page 19

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

Timing Waveforms, continued
8.3 #CE Controlled Command Write Cycle Timing Diagram
8.4 Chip Erase Timing Diagram
Address A18-0
DQ7-0
#WE
#CE
#OE
Address A18-0
DQ7-0
#WE
#CE
#OE
5555
T
SB0
WP
AA
High Z
T
WPH
2AAA
Six-byte code for 3.3V-only software
SB1
55
T
T
OES
AS
5555
SB2
80
chip erase
- 19 -
5555
SB3
AA
T
AH
T
2AAA
CP
SB4
55
Data Valid
Publication Release Date: April 14, 2005
T
DS
5555
SB5
10
T
T
OEH
DH
T
Internal Erase starts
CPH
T
EC
W39L040A
Revision A3