W49F201S-45 Winbond, W49F201S-45 Datasheet - Page 19
W49F201S-45
Manufacturer Part Number
W49F201S-45
Description
128K X 16 CMOS FLASH MEMORY
Manufacturer
Winbond
Datasheet
1.W49F201S-45.pdf
(23 pages)
- Current page: 19 of 23
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Timing Waveforms, continued
Boot Block Lockout Enable Timing Diagram
Chip Erase Timing Diagram
Address A16-0
Address A16-0
DQ15-0
DQ15-0
WE
WE
OE
CE
CE
OE
*Note: It is not allowed to assert read operation(CE# &OE# are both active) during the
5555
5555
SW0
SW0
XXAA
T
T
XXAA
WP
WP
command sequence. If read command is asserted during the command
sequence, then the device will return to read mode(abort write).
T
T
WPH
WPH
2AAA
2AAA
SW1
SW1
XX55
XX55
Six-word code for 5V-only software
Six-word code for Boot Block
Lockout Feature Enable
5555
5555
SW2
SW23
XX80
XX80
chip erase
- 19 -
5555
5555
SW3
SW3
XXAA
XXAA
2AAA
2AAA
SW4
SW4
XX55
XX55
Preliminary W49F201
5555
5555
SW5
SW5
XX10
XX40
Publication Release Date: June 1999
Internal Erase starts
T
T
EC
EC
Revision A1
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