PD45128168G5-A75A-9JF Elpida Memory, Inc., PD45128168G5-A75A-9JF Datasheet - Page 18

• Manufacturer Part Number: PD45128168G5-A75A-9JF
• Description: 128M-bit synchronous DRAM 4-bank, LVTTL MOS integrated circuit
• Manufacturer: Elpida Memory, Inc.

Notes 1.
Remark H = High level, L = Low level,
18
Write recovering
Write recovering
with auto precharge
Refreshing
Mode register
accessing
Current state
2.
3.
4.
5.
6.
7.
8.
9.
10. Illegal if t
All entries assume that CKE was active (High level) during the preceding clock cycle.
If all banks are idle, and CKE is inactive (Low level), PD45128xxx will enter Power down mode.
All input buffers except CKE will be disabled.
Illegal to bank in specified states; Function may be legal in the bank indicated by Bank Address (BA),
depending on the state of that bank.
If all banks are idle, and CKE is inactive (Low level), PD45128xxx will enter Self refresh mode. All input
buffers except CKE will be disabled.
Illegal if t
Illegal if t
Must satisfy burst interrupt condition.
Must satisfy bus contention, bus turn around, and/or write recovery requirements.
Must mask preceding data which don't satisfy t
RCD
RAS
RRD
/CS /RAS /CAS /WE
is not satisfied.
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
is not satisfied.
is not satisfied.
H
H
H
H
H
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
= High or Low level (Don’t care), V = Valid data
BA, CA, A10
BA, CA, A10
BA, RA
BA, A10
Op-Code
BA, CA, A10
BA, CA, A10
BA, RA
BA, A10
Op-Code
Address
Data Sheet E0031N30
DPL
DESL
NOP
BST
READ/READA
WRIT/WRITA
ACT
PRE/PALL
REF/SELF
MRS
DESL
NOP
BST
READ/READA
WRIT/WRITA
ACT
PRE/PALL
REF/SELF
MRS
DESL
NOP/BST
READ/WRIT
ACT/PRE/PALL
REF/SELF/MRS
DESL
NOP
BST
READ/WRIT
ACT/PRE/PALL/
REF/SELF/MRS
.
Command
PD45128441, 45128841, 45128163
Nop
Nop
Nop
Start read, Determine AP
New write, Determine AP
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
Nop
Nop
Nop
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
Nop
Nop
ILLEGAL
ILLEGAL
ILLEGAL
Nop
Nop
ILLEGAL
ILLEGAL
ILLEGAL
Enter row active after t
Enter row active after t
Enter row active after t
Enter precharge after t
Enter precharge after t
Enter precharge after t
Enter idle after t
Enter idle after t
Enter idle after t
Enter idle after t
Action
RC
RC
RSC
RSC
DPL
DPL
DPL
DPL
DPL
DPL
Notes
(3/3)
3, 8
8
3
3
3
3