EM6AB160
EtronTech
Figure 36. Read without Auto Precharge
tCK
tCH tCL
CK
CK
tIH
tIS
tIH
CKE
VALID
NOP
VALID
NOP
VALID
NOP
tIS tIH
NOP
NOP
ACT
RA
NOP
READ
PRE
NOP
COMMAND
A0-A9
tIS tIH
Col n
RA
RA
A11,A12
A10
tIS tIH
ALL BANKS
ONE BANKS
DIS AP
tIS tIH
Bank X
Bank X
*Bank X
BA0,BA1
CL=3
tRP
DM
Case 1:
tAC/tDQSCK=min
tDQSCK
tRPST
min
tRPRE
DQS
DQ
tLZ
min
DO
n
tLZ
tAC
min
min
Case 2:
tAC/tDQSCK=max
tDQSCK
max
tRPST
tRPRE
DQS
tLZ
tHZ
max
max
DO
n
DQ
tLZ
tAC
max
max
DO n = Data Out from column n
Burst Length = 4 in the case shown
3 subsequent elements of Data Out are provided in the programmed order following DO n
DIS AP = Disable Autoprecharge
* = Don't Care , if A10 is HIGH at this point
PRE = PRECHARGE, ACT = ACTIVE, RA = Row Address, BA = Bank Address, AR = AUTOREFRESH
NOP commands are shown for ease of illustration; other commands may be valid at these times
Precharge may not be issued before tRAS ns after the ACTIVE command for applicable banks
Don’t Care
Rev.1.3
54
Jun. /2015
ETRON [ ETRON TECHNOLOGY, INC. ]
