HM5225165B/HM5225805B/HM5225405B-75/A6/B6
Current state
CS
H
L
RAS CAS WE
Address
Command
DESL
Operation
Write
×
×
×
×
×
Continue burst to end
Continue burst to end
H
H
H
L
H
L
H
H
L
NOP
L
BA, CA, A10 READ/READ A Term burst and New read
L
L
BA, CA, A10 WRIT/WRIT A
Term burst and New write
L
H
H
BA, RA
ACTV
Other bank active
ILLEGAL on same bank*3
L
L
H
L
BA, A10
PRE, PALL
Term burst write and
Precharge*2
L
L
H
L
L
×
L
L
×
H
L
×
REF, SELF
MRS
ILLEGAL
ILLEGAL
MODE
Write with auto-
precharge
×
×
DESL
Continue burst to end and
precharge
L
H
H
H
×
NOP
Continue burst to end and
precharge
L
L
L
H
H
L
L
L
H
H
L
BA, CA, A10 READ/READ A ILLEGAL*4
BA, CA, A10 WRIT/WRIT A
ILLEGAL*4
H
BA, RA
ACTV
Other bank active
ILLEGAL on same bank*3
L
L
L
H
L
L
L
×
H
L
L
×
L
H
L
×
BA, A10
PRE, PALL
REF, SELF
MRS
ILLEGAL*4
×
ILLEGAL
MODE
ILLEGAL
Refresh (auto-
refresh)
×
DESL
Enter IDLE after tRC
L
L
L
L
L
L
L
H
H
H
L
H
L
H
H
L
×
NOP
Enter IDLE after tRC
BA, CA, A10 READ/READ A ILLEGAL*5
L
BA, CA, A10 WRIT/WRIT A
ILLEGAL*5
ILLEGAL*5
ILLEGAL*5
ILLEGAL
H
H
L
H
L
BA, RA
BA, A10
×
ACTV
L
PRE, PALL
REF, SELF
MRS
L
H
L
L
L
MODE
ILLEGAL
Notes: 1. H: VIH. L: VIL. ×: VIH or VIL. The other combinations are inhibit.
2. An interval of tDPL is required between the final valid data input and the precharge command.
3. If tRRD is not satisfied, this operation is illegal.
4. Illegal for same bank, except for another bank.
5. Illegal for all banks.
6. NOP for same bank, except for another bank.
Data Sheet E0082H10
16
ELPIDA [ ELPIDA MEMORY ]
