EM638165 Etron Technology Inc., EM638165 Datasheet - Page 65

• Manufacturer Part Number: EM638165
• Description: 4Mega x 16 Synchronous DRAM (SDRAM)
• Manufacturer: Etron Technology Inc.

Figure 21. Random Row Read (Interleaving Banks)
Preliminary
A0~A9,A11
BA0,1
RAS#
CAS#
DQM
CKE
CS#
WE#
CLK
A10
DQ
High
Command
Activate
Bank B
RBu
RBu
T0
(Burst Length=2, CAS# Latency=1)
Precharge
with Auto
Bank B
CBu
Read
T 1 T2
Command
Activate
t
Bank A
CK1
RAu CAu
RAu
Bu0
Begin Auto
Precharge
with Auto
Precharge
Bank A
Bank B
Read
Bu1 Au0
T3
Command
Activate
t RP
Bank B
RBv
RBv CBv
T4
Begin Auto
Precharge
with Auto
Precharge
Bank B
Bank A
Au1
Read
T5
t RP
Command
Activate
Bank A
RAv
RAv
Bv0 Bv1
T6
Precharge
Begin Auto
with Auto
Precharge
Bank A
Bank B
Read
CAv
T7
Command
Activate
Bank B
t RP
RBw
RBw CBw
Av0
T8
Precharge
Begin Auto
Precharge
with Auto
Bank B
Bank A
Read
Av1
T9
Command
Activate
t RP
Bank A
65
Bw0 Bw1
RAw
RAw CAw
T10 T 11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22
Precharge
Begin Auto
Precharge
with Auto
Bank A
Bank B
Read
Command
t RP
Activate
Bank B
RBx
RBx
Aw0
Begin Auto
Precharge
Precharge
with Auto
Bank B
Bank A
Read
CBx
Aw1Bx0
t RP
Command
Activate
Bank A
RAx
RAx CAx
Begin Auto
Precharge
Precharge
with Auto
Bx1
Bank A
Bank B
Read
Command
t RP
Activate
Bank B
RBy
RBy CBy
Ax0
Begin Auto
Precharge
Precharge
with Auto
Bank B
Bank A
Read
Ax1 By0
Command
Activate
t RP
Bank A
Rev 0.6
RAy
RAy CAy
EM638165
Begin Auto
Precharge
with Auto
Precharge
Bank A
Bank B
Read
By1 Ay0 Ay1
Command
Activate
Bank B
t RP
RBz
RBz
Begin Auto
Precharge
with Auto
Precharge
Bank B
Feb. 2001
Bank A
CBz
Read
t RP
Command
Activate
Bank A
RAz
RAz
Bz0