w19b320b Winbond Electronics Corp America, w19b320b Datasheet - Page 32

• Manufacturer Part Number: w19b320b
• Description: W19b320bt/b Datasheet
• Manufacturer: Winbond Electronics Corp America

7.6.4
Legend:
X = Don’t Care
RA = Address of the memory location to be read.
PA = Address of the memory location to be programmed. Addresses latch on the falling edge of the #WE or #CE pulse,
whichever happens later.
PD = Data to be programmed at location PA. Data latches on the rising edge of #WE or #CE pulse, whichever happens first.
RD = Data read from location RA during read operation.
SA = Address of the sector to be verified (in AUTOSELECT mode) or erased. Address bits A20-A12 uniquely select any sector.
Read (note 6)
Reset (note 7)
Normal Program
Unlock Bypass
Unlock Bypass
Program (note 11)
Unlock
(note12)
Chip Erase
Sector Erase
Erase Suspend
(note 13)
Erase Resume
(note 14)
Enter Security
Sector Region
Exit Security
Sector Region
Common Flash
Interface (CFI)
Query (note 15)
COMMAND SEQUENCE
Security Sector
Factory Protect
Device Code
Sector/Sector
Block Protect
Verify (note 10)
Manufacturer
(note 1 )
(Note 9)
Code
Command Definitions
Bypass
Reset
Word
Word
Word
Word
Word
Word
Word
Word
Word
Word
Word
Byte
Byte
Byte
Byte
Byte
Byte
Byte
Byte
Byte
Byte
Byte
CYCLE
1
1
4
3
2
2
6
6
1
1
4
4
4
4
3
4
1
ADDR
XXX
AAA
AAA
XXX
XXX
AAA
AAA
XXX
XXX
AAA
AAA
AAA
AAA
AAA
AAA
555
555
555
555
555
555
555
555
555
555
RA
AA
55
FIRST
DATA ADDR
RD
AA
AA
AA
AA
AA
AA
A0
AA
AA
B0
AA
AA
F0
90
30
98
XXX
2AA
2AA
2AA
2AA
2AA
2AA
2AA
2AA
2AA
2AA
555
555
555
555
555
555
555
555
555
555
PA
SECOND
DATA
PD
55
55
00
55
55
55
55
55
55
55
55
- 32 -
W19B320BT/B DATASHEET
ADDR
BUS CYCLES (note 2-5)
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
555
555
555
555
555
555
555
555
555
55
THIRD
DATA
A0
20
80
80
90
90
90
90
88
90
Publication Release Date:Dec.25, 2007
ADDR
AAA
AAA
XXX
X00
X01
X02
X03
X06
X02
X04
555
555
PA
FOURTH
DATA
82/02
00/01
(note
16)
PD
AA
AA
DA
00
ADDR
2AA
2AA
555
555
FIFTH
DATA ADDR DATA
55
55
Revisionv A3
AAA
555
SA
SIXTH
10
30