W19B160BT Datasheet, PDF (24/48 Pages) Winbond – 16Mbit, 2.7~3.6 volt CMOS flash memory

W19B160BT/B DATA SHEET
8.8 Command Definitions
COMMAND
SEQUENCE
(1)
BUS CYCLES (2-5)
CYCLE
FIRST
SECOND
THIRD
FOURTH
FIFTH
SIXTH
ADDR DATA ADDR DATA ADDR DATA ADDR DATA ADDR DATA ADDR DATA
Read (note 6)
1
RA RD
Reset (note 7)
1 XXX F0
Normal
Program
Word
555
2AA
555
4
AA
55
A0 PA PD
Byte
AAA
555
AAA
Chip Erase
Word
6
Byte
Word
Sector Erase
6
Byte
Unlock pass
Word
3
Byte
Unlock bypass program 2
Unlock bypass reset
2
555
2AA
555
AA
55
80
AAA
555
AAA
555
2AA
555
AA
55
80
AAA
555
AAA
555
2AA
555
AA
55
20
AAA
555
AAA
XXX A0 PA PD
XXX 90 XXX F0
555
AAA
555
AAA
2AA
555
AA
55
10
555
AAA
2AA
AA
55 SA 30
555
Erase suspend
1
Erase resume
1
Manufacturer ^Word
Code
Byte
4
Device
Code
Word
4
Byte
Word
Sector Protect
Verify (note 9)
4
Byte
Common Flash _Word
Interface (CFI)
1
Query (note 10) ^Byte
XXX B0
XXX 30
555
2AA
555
AA
55
90 X00 DA
AAA
555
AAA
555
2AA
555
AA
55
90
AAA
555
AAA
X01 _(note11
x02
)
XX00
555
2AA
555
(SA) X02
XX01
AA
55
90
00
AAA
555
AAA
(SA) X04
01
55
98
AA
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 auto select mode) or erased. Address bits A19-A12 uniquely select any sector.
Notes:
1. See Bus Operations Table for details.
2. All values are in hexadecimal.
3. Except for the read cycle and the fourth cycle of the auto select command sequence, all bus cycles are write cycles.
4. Data bits DQ15-DQ8 are don’t care for unlock and command cycle.
5. Unless otherwise noted, address bits A19-A11 are don’t cares for unlock and command cycles.
6. No unlock or command cycles required when reading array data.
7. When device is in the auto select mode, the reset command is required to return to reading array data, or if DQ5 goes
high (while the device is providing status data).
- 24 -