1GB-DDR3L-AS4C64M16D3L Datasheet, PDF (8/90 Pages) Alliance Semiconductor Corporation – JEDEC Standard Compliant

1Gb DDR3L – AS4C64M16D3L
Operation Mode Truth Table
Table 4. Truth Table (Note (1), (2))
Command
BankActivate
State CKEn-1⁽³⁾ CKEn DM BA0-2 A10/AP A0-9, 11 A12/BC# CS# RAS# CAS# WE#
Idle(4)
H
HXV
Row address
L
L
H
H
Single Bank Precharge
Any
H
HXV
L
V
V
L
L
H
L
All Banks Precharge
Any
H
HXV
H
V
V
L
L
H
L
Write (Fixed BL8 or BC4)
Active(4)
H
HXV
L
V
V
L
H
L
L
Write (BC4, on the fly)
Active(4)
H
HXV
L
V
L
L
H
L
L
Write (BL8, on the fly)
Active(4)
H
HXV
L
V
H
L
H
L
L
Write with Autoprecharge
Active(4)
H
HXV
H
V
V
L
H
L
L
(Fixed BL8 or BC4)
Write with Autoprecharge
Active(4)
H
HXV
H
V
L
L
H
L
L
(BC4, on the fly)
Write with Autoprecharge
Active(4)
H
HXV
H
V
H
L
H
L
L
(BL8, on the fly)
Read (Fixed BL8 or BC4)
Active(4)
H
HXV
L
V
V
LHLH
Read (BC4, on the fly)
Active(4)
H
HXV
L
V
L
LHLH
Read (BL8, on the fly)
Active(4)
H
HXV
L
V
H
LHLH
Read with Autoprecharge
Active(4)
H
HXV
H
V
V
LHLH
(Fixed BL8 or BC4)
Read with Autoprecharge
Active(4)
H
HXV
H
V
L
LHLH
(BC4, on the fly)
Read with Autoprecharge
Active(4)
H
HXV
H
V
H
LHLH
(BL8, on the fly)
(Extended) Mode Register Set Idle
H
HXV
OP code
L
L
L
L
No-Operation
Any
H
HXV
V
V
V
L HHH
Device Deselect
Burst Stop
Any
H
HXX
X
X
X
HXXX
Active(5)
H
XXX
X
X
X
L HH L
Refresh
Idle
H
HXV
V
V
V
L
L
L
H
SelfRefresh Entry
Idle
H
L XV
V
V
V
L
L
L
H
SelfRefresh Exit
X
X
X
X
HXXX
Idle
L
HX
V
V
V
V
L HHH
Power Down Mode Entry
X
X
X
X
HXXX
Idle
H
LX
V
V
V
V
L HHH
Power Down Mode Exit
X
X
X
X
HXXX
Any
L
HX
V
V
V
V
L HHH
Data Input Mask Disable
Active
H
XLX
X
X
X
XXXX
Data Input Mask Enable(6)
Active
H
XHX
X
X
X
XXXX
ZQ Calibration Long
Idle
H
HXX
H
X
X
L HH L
ZQ Calibration Short
Idle
H
HXX
L
X
X
NOTE 1: V=Valid data, X=Don't Care, L=Low level, H=High level
NOTE 2: CKEn signal is input level when commands are provided.
NOTE 3: CKEn-1 signal is input level one clock cycle before the commands are provided.
NOTE 4: These are states of bank designated by BA signal.
NOTE 5: Device state is 4, and 8 burst operation.
NOTE 6: LDM and UDM can be enabled respectively.
L HH L
Confidential
8
Rev. 2.0
Aug. /2014