W29C040P-12 WINBOND [Winbond], W29C040P-12 Datasheet - Page 17

• Manufacturer Part Number: W29C040P-12
• Description: 512K X 8 CMOS FLASH MEMORY
• Manufacturer: WINBOND [Winbond]

Timing Waveforms, continued
Reset Software Data Protection Timing Diagram
5 Volt-only Software Chip Erase Timing Diagram
Address A18-0
Address A18-0
DQ7-0
DQ7-0
WE
OE
CE
WE
OE
CE
5555
5555
SW0
T
SW0
T
WP
WP
AA
AA
T
T
WPH
WPH
2AAA
2AAA
SW1
SW1
T
55
T
55
BLC
BLC
Six-byte code for 5V-only software
Six-byte sequence for resetting
software data protection mode
5555
5555
SW2
SW2
80
80
- 17 -
chip erase
5555
5555
SW3
SW3
AA
AA
2AAA
SW4
2AAA
SW4
55
55
5555
Publication Release Date: May 1999
SW5
5555
SW5
10
20
Internal programming starts
Internal erasing starts
T
T
WC
WC
W29C040
Revision A5