Datasheet

Multi-purpose register recovery time t
MPRR
1 - nCK
22
Internal write to read command delay
t
WTR
7.5 - ns
18
4 - nCK
18
Internal read to precharge command
delay
t
RTP
7.5 - ns
4 - nCK
Minimum CKE low width for Self-refresh
entry to exit timing
t
CKESR
t
CKE
(min)
+1nCK
-
Valid clock requirement after Self-
refresh entry or Power-down entry
t
CKSRE
10 - ns
5 - nCK
Valid clock requirement before Self-
refresh exit or Power-down exit
t
CKSRX
10 - ns
5 - nCK
Exit Self-refresh to commands
not requiring a locked DLL
t
XS
t
RFC
(min)
+10
-
ns
5 - nCK
Exit Self-refresh to commands
requiring a locked DLL
t
XSDLL
t
DLLK
(min)
-
nCK
Auto-refresh to Active/Auto-refresh
command time
t
RFC
160 -
ns
Average Periodic Refresh Interval
0°C <
Tc < +85°C
t
REFI
- 7.8
μs
Average Periodic Refresh Interval
+85°C < Tc <
+95°C
t
REFI
- 3.9
μs
CKE minimum high and low pulse width t
CKE
5 - ns
3 - nCK
Exit reset from CKE high to a valid
command
t
XPR
t
RFC
(min)
+10
-
ns
5 - nCK
DLL locking time t
DLLK
512 - nCK
Power-down entry to exit time t
PD
t
CKE
(min) 9*t
REFI
15
Exit precharge power-down with
DLL frozen to commands requiring
a locked DLL
t
XPDLL
24 - ns
2
10 - nCK
2
Exit power-down with DLL on to any
valid command; Exit precharge
power-down with DLL frozen to
commands not requiring a locked DLL
t
XP
6 - ns
3 - nCK
Command pass disable delay t
CPDED
1 - nCK
Timing of ACT command to
Power-down entry
t
ACTPDEN
1
-
nCK
20
Timing of PRE command to
Power-down entry
t
PRPDEN
1
-
nCK
20
Timing of RD/RDA command to
Power-down entry
t
RDPDEN
RL+4+1
-
nCK
Parameter Symbol
- 12 (DDR3L-1600)
Unit NoteMin Max
AS4C128M16D3LB-12BCN
Confidential
- 39/45 -
Rev.1.0 Mar 2016