Datasheet

AS4C32M16D1A-C&I
52 Rev. 1.0 Mar. /2015
Figure 37. Read with Auto Precharge
NOP
t
IS
t
IH
NOP
NOP NOP
VALID
VALID
VALID
t
IS
t
IH
t
CH
t
CL
t
CK
RA
NOP READ
RA
t
IH
t
IS
CL=3
t
RP
ACT
NOP NOP
NOP
Col n
t
IS
t
IH
RA
Bank X
t
IS
t
IH
EN AP
Bank X
t
RPRE
min
t
RPST
t
LZ
t
AC
min
t
RPRE
t
RPST
t
LZ
t
LZ
max
t
DQSCK
t
HZ
max
t
IH
min
max
max
Don’t Care
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
EN AP = Enable Autoprecharge
ACT = ACTIVE, RA = Row Address
NOP commands are shown for ease of illustration; other commands may be valid at these times
The READ command may not be issued until tRAP has been satisfied. If Fast Autoprecharge is supported, tRAP = tRCD, else the READ
may not be issued prior to tRASmin – (BL*tCK/2)
DO
n
DO
n
max
t
AC
min
t
LZ
t
DQSCK
CK
CK
A0-A9
COMMAND
CKE
A10
BA0,BA1
DM
DQS
DQ
DQS
DQ
A11,A12
Case 2:
t
AC
/t
DQSCK
=max
Case 1:
t
AC
/t
DQSCK
=min