W632GU6NB
Publication Release Date: Aug. 20, 2018
Revision: A01
- 146 -
AC Timing and Operating Condition for -12/12I/12J/-15/15I/15J speed grades, continued
SYMBOL
SPEED GRADE
DDR3L-1600
(-12/12I/12J)
DDR3L-1333
(-15/15I/15J)
UNITS NOTES
PARAMETER
MIN.
MAX.
MIN.
MAX.
Power Down Timing
t
XP
Exit Power Down with DLL on to any valid
command; Exit Precharge Power Down with DLL
frozen to commands not requiring a locked DLL
max(3nCK,
6nS)
max(3nCK,
6nS)
34
t
XPDLL
Exit Precharge Power Down with DLL frozen to
commands requiring a locked DLL
max(10nCK,
24nS)
max(10nCK,
24nS)
35
t
CKE
CKE minimum pulse width
max(3nCK,
5nS)
max(3nCK,
5.625nS)
t
CPDED
Command pass disable delay
1
1
nCK
t
PD
Power Down Entry to Exit Timing
t
CKE
(min)
9 * t
REFI
t
CKE
(min)
9 * t
REFI
25
t
ACTPDEN
Timing of ACT command to Power Down entry
1
1
nCK
27
t
PRPDEN
Timing of PRE or PREA command to Power Down
entry
1
1
nCK
27
t
RDPDEN
Timing of RD/RDA command to Power Down entry RL + 4 + 1
RL + 4 + 1
nCK
t
WRPDEN
Timing of WR command to Power Down entry
(BL8OTF, BL8MRS, BC4OTF)
Min.: WL + 4 + roundup (t
WR
(min)/ t
CK
(avg))
Max.:
nCK
20
t
WRAPDEN
Timing of WRA command to Power Down entry
(BL8OTF, BL8MRS, BC4OTF)
Min.: WL + 4 + WR + 1
Max.:
nCK
19
t
WRPDEN
Timing of WR command to Power Down entry
(BC4MRS)
Min.: WL + 2 + roundup (t
WR
(min)/ t
CK
(avg))
Max.:
nCK
20
t
WRAPDEN
Timing of WRA command to Power Down entry
(BC4MRS)
Min.: WL + 2 + WR + 1
Max.:
nCK
19
t
REFPDEN
Timing of REF command to Power Down entry
1
1
nCK
27, 28
t
MRSPDEN
Timing of MRS command to Power Down entry
t
MOD
(min)
t
MOD
(min)
ODT Timing
ODTH4
ODT high time without write command or with write
command and burst chop 4
4
4
nCK
30
ODTH8
ODT high time with Write command and burst
length 8
6
6
nCK
31
t
AONPD
Asynchronous R
TT
turn-on delay (Power Down
with DLL frozen)
2
8.5
2
8.5
nS
32
t
AOFPD
Asynchronous R
TT
turn-off delay (Power Down
with DLL frozen)
2
8.5
2
8.5
nS
32
t
AON
R
TT
turn-on
-225
225
-250
250
pS
17, 43
t
AOF
Rtt_Nom and Rtt_WR turn-off time from ODTLoff
reference
0.3
0.7
0.3
0.7
t
CK
(avg) 17, 44
t
ADC
R
TT
dynamic change skew
0.3
0.7
0.3
0.7
t
CK
(avg)
17
Write Leveling Timing
t
WLMRD
First DQS/DQS# rising edge after write leveling
mode is programmed
40
40
nCK
5
t
WLDQSEN
DQS/DQS# delay after write leveling mode is
programmed
25
25
nCK
5
t
WLS
Write leveling setup time from (CK, CK#) zero
crossing to rising (DQS, DQS#) zero crossing
165
195
pS
t
WLH
Write leveling hold time from rising (DQS, DQS#)
zero crossing to (CK, CK#) zero crossing
165
195
pS
t
WLO
Write leveling output delay
0
7.5
0
9
nS
t
WLOE
Write leveling output error
0
2
0
2
nS