W632GU6NB
Publication Release Date: Aug. 20, 2018
Revision: A01
- 144 -
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.
Data Timing
t
DQSQ
DQS, DQS# to DQ skew, per group, per access
100
125
pS
23
t
QH
DQ output hold time from DQS, DQS#
0.38
0.38
t
CK
(avg)
18, 23
t
LZ(DQ)
DQ low impedance time from CK, CK#
-450
225
-500
250
pS
17, 23, 24
t
HZ(DQ)
DQ high impedance time from CK, CK#
225
250
pS
17, 23, 24
t
DS(AC135)
Data setup time to
DQS, DQS#
Base specification
25
45
pS
11, 40
V
REF
@ 1 V/nS
160
180
pS
11, 40, 42
t
DH(DC90)
Data hold time from
DQS, DQS#
Base specification
55
75
pS
11, 40
V
REF
@ 1 V/nS
145
165
pS
11, 40, 42
t
DIPW
DQ and DM input pulse width for each input
360
400
pS
10
Data Strobe Timing
t
RPRE
DQS,DQS# differential READ Preamble
0.9
Note 21
0.9
Note 21 t
CK
(avg) 18, 21, 23
t
RPST
DQS,DQS# differential READ Postamble
0.3
Note 22
0.3
Note 22 t
CK
(avg) 18, 22, 23
t
QSH
DQS,DQS# differential output high time
0.4
0.4
t
CK
(avg)
18, 23
t
QSL
DQS,DQS# differential output low time
0.4
0.4
t
CK
(avg)
18, 23
t
WPRE
DQS,DQS# differential WRITE Preamble
0.9
0.9
t
CK
(avg)
46
t
WPST
DQS,DQS# differential WRITE Postamble
0.3
0.3
t
CK
(avg)
46
t
DQSCK
DQS,DQS# rising edge output access time from
rising CK, CK#
-225
225
-255
255
pS
17, 23
t
LZ(DQS)
DQS and DQS# low-impedance time from
CK, CK# (Referenced from RL - 1)
-450
225
-500
250
pS
17, 23, 24
t
HZ(DQS)
DQS and DQS# high-impedance time from
CK, CK# (Referenced from RL + BL/2)
225
250
pS
17, 23, 24
t
DQSL
DQS,DQS# differential input low pulse width
0.45
0.55
0.45
0.55
t
CK
(avg)
12, 14
t
DQSH
DQS,DQS# differential input high pulse width
0.45
0.55
0.45
0.55
t
CK
(avg)
13, 14
t
DQSS
DQS,DQS# rising edge to CK,CK# rising edge
-0.27
0.27
-0.25
0.25
t
CK
(avg)
16
t
DSS
DQS,DQS# falling edge setup time to CK,CK#
rising edge
0.18
0.2
t
CK
(avg)
15, 16
t
DSH
DQS,DQS# falling edge hold time from CK,CK#
rising edge
0.18
0.2
t
CK
(avg)
15, 16
Command and Address Timing
t
AA
Internal read command to first data
See “Speed Bin” on
page 135
See “Speed Bin” on
page 134
nS
8
t
RCD
ACT to internal read or write delay time
nS
8
t
RP
PRE command period
nS
8
t
RC
ACT to ACT or REF command period
nS
8
t
RAS
ACT to PRE command period
nS
8
t
DLLK
DLL locking time
512
512
nCK
t
RTP
Internal READ Command to PRECHARGE
Command delay
max(4nCK,
7.5nS)
max(4nCK,
7.5nS)
8
t
WTR
Delay from start of internal write transaction to
internal read command
max(4nCK,
7.5nS)
max(4nCK,
7.5nS)
8, 26