as4c8m16s Alliance Memory, Inc, as4c8m16s Datasheet - Page 36

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

Figure 31.1. Read and Write Cycle
CLK
CKE
CS#
RAS#
CAS#
WE#
A10
A0-A9,
A11
DQM
DQ
BA0,1
FEBRUARY 2011
Hi-Z
T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10
Activate
Cammand
Bank A
RAx
RAx
RAx
Read
Command
Bank A
CAx
Ax0
Ax1
Ax2 Ax3
(Burst Length=4, CAS# Latency=2)
Write
Command
Bank A
DAy0 DAy1
36
CAy
T11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22
The Write Data
is Masked with a
Zero Clock
Latency
DAy3
Read
Command
Bank A
CAz
Don’t Care
Az0
Az1
AS4C8M16S
The Read Data
is Masked with a
Two Clock
Latency
Az3