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S29AL008J70BFI020 Datasheet(PDF) 32 Page - SPANSION

Part # S29AL008J70BFI020
Description  8 Megabit (1 M x 8-Bit/512 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
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Manufacturer  SPANSION [SPANSION]
Direct Link  http://www.spansion.com
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S29AL008J
S29AL008J_00_11 April 12, 2012
Da ta
Sh e e t
10.10 Command Definitions Table
Legend
Notes
Table 10.1 S29AL008J Command Definitions
Command
Sequence
(Note 1)
Bus Cycles (Notes 2–5)
First
Second
Third
Fourth
Fifth
Sixth
Addr
Data
Addr
Data
Addr
Data
Addr
Data
Addr
Data
Addr
Data
Read (Note 6)
1RA
RD
Reset (Note 7)
1
XXX
F0
Manufacturer ID
Word
4
555
AA
2AA
55
555
90
X00
01
Byte
AAA
555
AAA
Device ID,
Top Boot Block
Word
4
555
AA
2AA
55
555
90
X01
22DA
Byte
AAA
555
AAA
X02
DA
Device ID,
Bottom Boot Block
Word
4
555
AA
2AA
55
555
90
X01
225B
Byte
AAA
555
AAA
X02
5B
Sector Group Protect Verify
(Note 9)
Word
4
555
AA
2AA
55
555
90
(SA)
X02
XX00
XX01
Byte
AAA
555
AAA
(SA)
X04
00
01
Enter Secured Silicon Sector
Word
3
555
AA
2AA
55
555
88
Byte
AAA
555
AAA
Exit Secured Silicon Sector
Word
4
555
AA
2AA
55
555
90
XXX
00
Byte
AAA
555
AAA
CFI Query (Note 10)
Word
1
55
98
Byte
AA
Program
Word
4
555
AA
2AA
55
555
A0
PA
PD
Byte
AAA
555
AAA
Unlock Bypass
Word
3
555
AA
2AA
55
555
20
Byte
AAA
555
AAA
Unlock Bypass Program (Note 11)
2
XXX
A0
PA
PD
Unlock Bypass Reset (Note 12)
2
XXX
90
XXX
00
Chip Erase
Word
6
555
AA
2AA
55
555
80
555
AA
2AA
55
555
10
Byte
AAA
555
AAA
AAA
555
AAA
Sector Erase (Note 15)
Word
6
555
AA
2AA
55
555
80
555
AA
2AA
55
SA
30
Byte
AAA
555
AAA
AAA
555
Erase Suspend (Note 13)
1
XXX
B0
Erase Resume (Note 14)
1
XXX
30
X = Don’t care
RA = Address of the memory location to be read
RD = Data read from location RA during read operation.
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.
SA = Address of the sector to be verified (in autoselect mode) or erased.
Address bits A18–A12 uniquely select any sector.
1. See Table 7.1 on page 13 for description of bus operations.
2. All values are in hexadecimal.
3. Except for the read cycle and the fourth cycle of the autoselect command
sequence, all bus cycles are write cycles.
4. Data bits DQ15–DQ8 are don’t cares for unlock and command cycles.
5. Address bits A18–A11 are don’t cares for unlock and command cycles,
unless SA or PA required.
6. No unlock or command cycles required when reading array data.
7. The Reset command is required to return to reading array data when device
is in the autoselect mode, or if DQ5 goes high (while the device is providing
status data).
8. The fourth cycle of the autoselect command sequence is a read cycle.
9. The data is 00h for an unprotected sector and 01h for a protected sector. See
“Autoselect Command Sequence” for more information.
10. Command is valid when device is ready to read array data or when device is
in autoselect mode.
11. The Unlock Bypass command is required prior to the Unlock Bypass Program
command.
12. The Unlock Bypass Reset command is required to return to reading array
data when the device is in the unlock bypass mode. F0 is also acceptable.
13. The system may read and program in non-erasing sectors, or enter the
autoselect mode, when in the Erase Suspend mode. The Erase Suspend
command is valid only during a sector erase operation.
14. The Erase Resume command is valid only during the Erase Suspend mode.
15. Additional sector erase commands during the time-out period after an initial
sector erase are one cycle long and identical to the sixth cycle of the sector
erase command sequence (SA / 30).


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