IC42S32400 Datasheet, PDF (49/62 Pages) Integrated Circuit Solution Inc – 1M x 32 Bit x 4 Banks (128-MBIT) SDRAM

IC42S32400
IC42S32400L
Figure 16.3.Auto Precharge after Read Burst (Burst Length=4,CAS#Latency=3)
T0 T 1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T 11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22
CLK
tCK3
CKE High
CS#
RAS#
CAS#
WE#
BS0,1
A10 ^RAx
RBx
RBy
A0-A9 ^RAx
DQM
Hi-Z
DQ
Activate
Command
Bank A
CAx RBx
CBx
CAy
RBy
CBy
Ax0 Ax1 Ax2 Ax3 Bx0 Bx1 Bx2 Bx3 Ay0 Ay1 Ay2 Ay3
By0 By1 By2 By3
Activate
Command
Bank B
Read
Command
Bank A
Read with
Auto Precharge
Command
Bank B
Read with
Auto Precharge
Command
Bank A
Activate
Command
Bank B
Read with
Auto Precharge
Command
Bank B
Integrated Circuit Solution Inc.
49
DR038-0C 02/01/2005