W49F201S-45B WINBOND [Winbond], W49F201S-45B Datasheet - Page 20

• Manufacturer Part Number: W49F201S-45B
• Description: 128K X 16 CMOS FLASH MEMORY
• Manufacturer: WINBOND [Winbond]

Timing Waveforms, continued
Sector Erase Timing Diagram
Reset Timing Diagram
RESET
CE
OE
Address A16-0
DQ15-0
WE
CE
OE
*Note: It is not allowed to assert read operation(CE# &OE# are both active) during the
5555
SW0
T
XXAA
command sequence. If read command is asserted during the 4-word command
sequence, then the device will return to read mode(abort write).
WP
SA = Sector Address
T
RP
T
WPH
2AAA
XX55
SW1
Six-word code for 5V-only software
Main Memory Erase
5555
SW2
XX80
- 20 -
T
RH
5555
SW3
XXAA
2AAA
SW4
XX55
Preliminary W49F201
SA
SW5
XX30
Internal Erase starts
T
EC