as4c8m16s Alliance Memory, Inc, as4c8m16s Datasheet - Page 21

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

Timing Waveforms
Figure 19. AC Parameters for Write Timing
A0-A9,
A11
CLK
CKE
CS#
RAS#
CAS#
BA0,1
DQ
WE#
A10
DQM
FEBRUARY 2011
Hi-Z
t
CH
T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10
t
IS
Activate
Command
Bank A
t
IS
t
CL
RAx
RAx
t
t
IH
t
IS
IH
t
RCD
Write with
Auto Precharge
Command
Bank A
CAx
Ax0
Ax1 Ax2
Activate
Command
Bank B
RBx
RBx
t
RC
Ax3
Begin Auto
Precharge Bank A
Write with
Auto Precharge
Command
Bank B
CBx
Bx0 Bx1
t
DAL
(Burst Length=4)
T11T12 T13 T14 T15 T16 T17 T18 T19
21
Bx2
Activate
Command
Bank A
RAy
RAy
Bx3
Begin Auto
Precharge Bank B
t
IS
Write
Command
Bank A
CAy
Ay0 Ay1 Ay2
t
IH
Don’t Care
Ay3
t
WR
T20
AS4C8M16S
Precharge
Command
Bank A
T21
T22