![](http://datasheet.mmic.net.cn/330000/MBM29LV650UE_datasheet_16439228/MBM29LV650UE_9.png)
MBM29LV650UE/651UE-
90/12
9
*1:This command is valid while Fast Mode.
*2:This command is valid while RESET = V
ID
.
*3:The valid addresses are A
6
to A
0
.
*4:This command is valid while Hi-ROM mode.
Note:1. Address bits = X = “H” or “L” for all address commands except or Program Address (PA) and Sector Address
(SA).
2.Bus operations are defined in Table 2.
3.RA = Address of the memory location to be read.
PA = Address of the memory location to be programmed. Addresses are latched on the falling edge of
the write pulse.
SA = Address of the sector to be erased. The combination of A
21
, A
20
, A
19
, A
18
, A
17
,A
16
, and A
15
will uniquely
select any sector.
4.RD = Data read from location RA during read operation.
PD = Data to be programmed at location PA. Data is latched on the falling edge of write pulse.
5.SPA = Sector group address to be protected. Set sector group address (SGA) and (A
6
, A
1
, A
0
) = (0, 1, 0).
SD = Sector group protection verify data. Output 01h at protected sector group addresses and output
00h at unprotected sector group addresses.
6.Both Read/Reset commands are functionally equivalent, resetting the device to the read mode.
Table 3 MBM29LV650UE/651UE Command Definitions
Command
Sequence
Bus
Write
Cycles
Req’d
First Bus
Write Cycle
Second Bus
Write Cycle
Third Bus
Write Cycle
Fourth Bus
Read/Write
Cycle
Fifth Bus
Write Cycle
Sixth Bus
Write Cycle
Addr. Data Addr. Data Addr. Data Addr. Data Addr. Data Addr. Data
Read/Reset
1
XXXh
F0h
—
—
—
—
—
—
—
—
—
—
Read/Reset
3
XXXh
AAh
XXXh
55h
XXXh
F0h
RA
RD
—
—
—
—
Autoselect
3
XXXh
AAh
XXXh
55h
XXXh
90h
—
—
—
—
—
—
Program
4
XXXh
AAh
XXXh
55h
XXXh
A0h
PA
PD
—
—
—
—
Chip Erase
6
XXXh
AAh
XXXh
55h
XXXh
80h
XXXh
AAh
XXXh
55h
XXXh
10h
Sector Erase
6
XXXh
AAh
XXXh
55h
XXXh
80h
XXXh
AAh
XXXh
55h
SA
30h
Erase Suspend
1
XXXh
B0h
—
—
—
—
—
—
—
—
—
—
Erase Resume
1
XXXh
30h
—
—
—
—
—
—
—
—
—
—
Set to Fast Mode
3
XXXh
AAh
XXXh
55h
XXXh
20h
—
—
—
—
—
—
Fast Program *1
2
XXXh
A0h
PA
PD
—
—
—
—
—
—
—
—
Reset from Fast
Mode *1
2
XXXh
90h
XXXh
F0h
—
—
—
—
—
—
—
—
Extended Sector
Group Protection
*2
4
XXXh
60h
SPA
60h
SPA
40h
SPA
SD
—
—
—
—
Query *3
1
XXh
98h
—
—
—
—
—
—
—
—
—
—
Hi-ROM Entry
3
XXXh
AAh
XXXh
55h
XXXh
88h
—
—
—
—
—
—
Hi-ROM
Program *4
4
XXXh
AAh
XXXh
55h
XXXh
A0h
PA
PD
—
—
—
—
Hi-ROMExit *4
4
XXXh
AAh
XXXh
55h
XXXh
90h
XXXh
00h
—
—
—
—