Rainbow Electronics W29C040 - Manual (Page 17)

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