W632GU6KB Datasheet, PDF (44/160 Pages) Winbond – 16M X 8 BANKS X 16 BIT DDR3L SDRAM

W632GU6KB
8.13.2 READ Timing Definitions
Read timing is shown in Figure 23 and is applied when the DLL is enabled and locked.
Rising data strobe edge parameters:
 tDQSCK min/max describes the allowed range for a rising data strobe edge relative to CK, CK#.
 tDQSCK is the actual position of a rising strobe edge relative to CK, CK#.
 tQSH describes the DQS, DQS# differential output high time.
 tDQSQ describes the latest valid transition of the associated DQ pins.
 tQH describes the earliest invalid transition of the associated DQ pins.
Falling data strobe edge parameters:
 tQSL describes the DQS, DQS# differential output low time.
 tDQSQ describes the latest valid transition of the associated DQ pins.
 tQH describes the earliest invalid transition of the associated DQ pins.
tDQSQ; both rising/falling edges of DQS, no tAC defined.
CK#
CK
tDQSCK(min)
tDQSCK(min)
tDQSCK(max)
tDQSCK(max)
Rising Strobe
Region
tDQSCK
tQSH
DQS#
Rising Strobe
Region
tDQSCK
tQSL
DQS
tQH
tDQSQ
tQH
tDQSQ
Associated
DQ Pins
Figure 23 – READ Timing Definition
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Publication Release Date: Jan. 20, 2015
Revision: A06