AS29LV016 Ver la hoja de datos (PDF) - Austin Semiconductor
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AS29LV016
Austin Semiconductor
AS29LV016 Datasheet PDF : 40 Pages
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COTS PEM
BOOT SECTOR FLASH
Austin Semiconductor, Inc.
AS29LV016
TABLE 9: COMMAND DEFINITIONS
Command Sequence1
Read6
1
Reset7
1
Manufacturer ID
Word
Byte
4
Device ID,
Top Boot Block
Word 4
Byte
Device ID,
Bottom Boot Block
Word 4
Byte
Sector Protect Verify9
Word
4
Byte
CFI Query10
Program
Unlock Bypass
Unlock Bypass Program11
Unlock Bypass Reset12
Chip Erase
Sector Erase
Erase Suspend13
Erase Resume14
Word
Byte
1
Word
Byte
4
Word 3
Byte
2
2
Word
Byte
6
Word
Byte
6
1
1
First
Addr Data
RA
RD
XXX
F0
555
AAA
AA
555
AA
AAA
555
AA
AAA
555
AA
AAA
55
AA
98
555
AAA
AA
555
AA
AAA
XXX
A0
XXX
90
555
AAA
AA
555
AAA
AA
XXX
B0
XXX
30
Second
Addr Data
2AA
555
55
2AA
55
555
2AA
55
555
2AA
55
555
2AA
555
55
2AA
55
555
PA
PD
XXX
F0
2AA
555
55
2AA
555
55
Bus Cycles2-5
Third
Fourth
Addr Data Addr Data
555
AAA
90
X00
01
555
90
X01 22C4
AAA
X02
C4
555
90
X01 2249
AAA
X02
49
555
AAA
90
(SA)
X02
(SA)
X04
XX00
XX01
00
01
555
AAA
A0
PA
PD
555
20
AAA
555
AAA
80
555
AAA
AA
555
AAA
80
555
AAA
AA
Fifth
Addr Data
2AA
555
55
2AA
555
55
Sixth
Addr Data
555
AAA
10
SA
30
Legend:
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 A19–A12 uniquely select any sector.
Note:
1. See Table 1 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 A19–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.
AS29LV016
Rev. 2.1 10/08
21
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
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