Datasheet

Table 56: Electrical Characteristics and AC Operating Conditions for Speed Extensions (Continued)
Notes 1–8 apply to the entire table
Parameter Symbol
DDR3L-1866 DDR3L-2133
Unit NotesMin Max Min Max
DQS, DQS# differential input high pulse width
t
DQSH 0.45 0.55 0.45 0.55 CK
DQS, DQS# falling setup to CK, CK# rising
t
DSS 0.18 – 0.18 – CK 25
DQS, DQS# falling hold from CK, CK# rising
t
DSH 0.18 – 0.18 – CK 25
DQS, DQS# differential WRITE preamble
t
WPRE 0.9 – 0.9 – CK
DQS, DQS# differential WRITE postamble
t
WPST 0.3 – 0.3 – CK
DQ Strobe Output Timing
DQS, DQS# rising to/from rising CK, CK#
t
DQSCK –195 195 –180 180 ps 23
DQS, DQS# rising to/from rising CK, CK# when DLL is disabled
t
DQSCK
(DLL_DIS)
1 10 1 10 ns 26
DQS, DQS# differential output high time
t
QSH 0.40 – 0.40 – CK 21
DQS, DQS# differential output low time
t
QSL 0.40 – 0.40 – CK 21
DQS, DQS# Low-Z time (RL - 1)
t
LZDQS –390 195 –360 180 ps 22, 23
DQS, DQS# High-Z time (RL + BL/2)
t
HZDQS – 195 – 180 ps 22, 23
DQS, DQS# differential READ preamble
t
RPRE 0.9 Note 24 0.9 Note 24 CK 23, 24
DQS, DQS# differential READ postamble
t
RPST 0.3 Note 27 0.3 Note 27 CK 23, 27
Command and Address Timing
DLL locking time
t
DLLK 512 – 512 – CK 28
CTRL, CMD, ADDR setup to CK,CK#
Base (specification)
t
IS
(AC135)
65 – 60 – ps 29, 30,
44
V
REF
@ 1 V/ns 200 – 195 – ps 20, 30
CTRL, CMD, ADDR setup to CK,CK#
Base (specification)
t
IS
(AC125)
150 – 135 – ps 29, 30,
44
V
REF
@ 1 V/ns 275 – 260 – ps 20, 30
CTRL, CMD, ADDR hold from CK,CK#
Base (specification)
t
IH
(DC90)
110 – 95 – ps 29, 30
V
REF
@ 1 V/ns 200 – 195 – ps 20, 30
Minimum CTRL, CMD, ADDR pulse width
t
IPW 535 – 470 – ps 41
ACTIVATE to internal READ or WRITE delay
t
RCD See Speed Bin Tables for
t
RCD ns 31
PRECHARGE command period
t
RP See Speed Bin Tables for
t
RP ns 31
ACTIVATE-to-PRECHARGE command period
t
RAS See Speed Bin Tables for
t
RAS ns 31, 32
ACTIVATE-to-ACTIVATE command period
t
RC See Speed Bin Tables for
t
RC ns 31, 43
8Gb: x4, x8, x16 DDR3L SDRAM
Electrical Characteristics and AC Operating Conditions
85
Rev 2.0 June 2016
© 2015 Alliance Memory, Inc. All rights reserved.
Alliance Memory Inc. reserves the right to change products or specification without notice
Alliance Memory Inc. 511 Taylor Way, San Carlos, CA 94070
TEL: [phone] FAX: [phone]