EtronTech
EM636165-XXI
1M x 16 SDRAM
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
High
CKE
CS#
RAS#
CAS#
WE#
A11
A10
RAx
RBx
RBx
RBy
RBy
CAx
CBx
CAy
CBy
RAx
A0~A9
DQM
Hi-Z
DQ
Ax0
By2
Ax1 Ax2 Ax3 Bx0
Bx1 Bx2
Bx3 Ay0 Ay1
Ay2 Ay3
By0 By1
By3
Activate
Command
Bank A
Activate
Read with
Activate
Command
Bank B
Read with
Command
Bank B
Read
Auto Precharge
Command
Bank B
Auto Precharge
Command
Bank B
Read with
Auto Precharge
Command
Command
Bank A
Bank A
Preliminary
56
Rev. 1.1 Apr. 2005