as4c8m16s Alliance Memory, Inc, as4c8m16s Datasheet - Page 40

• Manufacturer Part Number: as4c8m16s
• Description: 128mb/ 8m X 16 Bit Synchronous Dram Sdram
• Manufacturer: Alliance Memory, Inc

Figure 33. Interleaved Column Write Cycle
BA0,1
A0-A9,
A11
CLK
A10
CS#
RAS#
DQM
CKE
WE#
DQ
CAS#
FEBRUARY 2011
FEBRUARY 2011
Hi-Z
T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10
Activate
Cammand
Bank A
RAx
RAx
RAx
t
t
RRD
RCD
>t
RRD(min)
Write
Command
Bank A
CAx
DAx0
Activate
Command
Bank B
RBw
RBw
DAx1 DAx2 DAx3 DBw0 DBw1 DBx0 DBx1 DBy0 DBy1 DAy0 DAy1 DBz0 DBz1
Write
Command
Bank B
CBw
Write
Command
Bank B
CBx
(Burst Length=4)
T11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22
Write
Command
Bank B
40
CBy
Write
Command
Bank A
CAy
Write
Command
Bank B
t
CBz
WR
Precharge
Command
Bank A
DBz2 DBz3
Don’t Care
t
WR
AS4C8M16S
AS4C8M16S
Precharge
Command
Bank B