参数资料
型号: M29W800FB9N3F
厂商: NUMONYX
元件分类: PROM
英文描述: 512K X 16 FLASH 3V PROM, 90 ns, PDSO48
封装: 12 X 20 MM, ROHS COMPLIANT, PLASTIC, TSOP-48
文件页数: 13/49页
文件大小: 936K
代理商: M29W800FB9N3F
Command interface
M29W800FT, M29W800FB
4.12
Block Protect and Chip Unprotect commands
Each block can be separately protected against accidental program or erase. The whole
chip can be unprotected to allow the data inside the blocks to be changed.
Block protect and chip unprotect operations are described in Appendix C: Block protection.
Table 4.
Commands, 16-bit mode, BYTE = VIH
(1)
Command
Le
ng
th
Bus write operations
1st
2nd
3rd
4th
5th
6th
Addr Data Addr Data Addr Data Addr Data Addr Data Addr Data
Read/Reset
1X
F0
3
555
AA
2AA
55
X
F0
Auto Select
3
555
AA
2AA
55
555
90
Program
4
555
AA
2AA
55
555
A0
PA
PD
Unlock Bypass
3
555
AA
2AA
55
555
20
Unlock Bypass Program
2
X
A0
PA
PD
Unlock Bypass Reset
2
X
90
X
00
Chip Erase
6
555
AA
2AA
55
555
80
555
AA
2AA
55
555
10
Block Erase
6+
555
AA
2AA
55
555
80
555
AA
2AA
55
BA
30
Erase Suspend
1
X
B0
Erase Resume
1
X
30
Read CFI Query
1
55
98
1.
X don’t care, PA program address, PD program data, BA any address in the block.
All values in the table are in hexadecimal format.
The command interface only uses A–1, A0-A10 and DQ0-DQ7 to verify the commands; A11-A18, DQ8-DQ14 and DQ15
are don’t care. DQ15A–1 is A–1 when BYTE is VIL or DQ15 when BYTE is VIH.
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