W19B320ABT7L
| Model | W19B320ABT7L |
| Description | Flash, 2MX16, 70ns, PDSO48, 12 X 20 MM, TSOP-48 |
| PDF file | Total 53 pages (File size: 479K) |
| Chip Manufacturer | WINBOND |
W19B320AT/B
9.7 Chip/Sector Erase Waveform
Erase Command Sequence (last two cycl
T
WC
Address
#CE
T
CH
#OE
#WE
Data
RY/#BY
VDD
Read Status Data
T
AS
SA
555h for chip erase
2AAh
VA
T
AH
VA
T
WP
T
CS
T
WPH
T
DS
T
SE
30h
In
Progress
T
DH
10 for Chip Erase
55h
Complete
T
BUSY
T
RB
T
VCS
Notes :
1. SA = sector address (for Sector Erase), VA = Valid Address for reading status data (see “Write operation Status”).
2. These waveforms are for the word mode
9.8 Back-to back Read/Write Cycle Waveform
T
WC
Addresses
Valid PA
T
RC
Valid RA
T
WC
Valid PA
T
WC
Valid PA
T
AH
#CE
#OE
T
WP
#WE
T
WPH
T
OEH
T
ACC
T
CE
T
OE
T
GHWL
T
CPH
T
CP
T
DF
T
DS
Valid
In
T
DH
T
OH
Valid
Out
Valid
In
Valid
In
Data
T
SR/W
#WE Controlled Write Cycle
Read Cycle
#CE Controlled Write Cycle
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Publication Release Date: December 27, 2005
Revision A4
