HMT425S6MFR6A Datasheet, PDF (23/53 Pages) Hynix Semiconductor – DDR3L SDRAM Unbuffered SODIMMs Based on 4Gb M-die

Slew Rate Definitions for Differential Input Signals
Input slew rate for differential signals (CK, CK and DQS, DQS) are defined and measured as shown in table
and figure below.
Differential Input Slew Rate Definition
Description
Measured
Min
Max
Defined by
Differential input slew rate for rising edge
(CK-CK and DQS-DQS)
V_ILdiffmax V_IHdiffmin [VIHdiffmin-VILdiffmax] / DeltaTRdiff
Differential input slew rate for falling edge
(CK-CK and DQS-DQS)
V_IHdiffmin V_ILdiffmax [VIHdiffmin-VILdiffmax] / DeltaTFdiff
Notes:
The differential signal (i.e. CK-CK and DQS-DQS) must be linear between these thresholds.
Delta
TRdiff
V_IHdiffmin
0
Delta
TFdiff
V_ILdiffmax
Differential Input Slew Rate Definition for DQS, DQS and CK, CK
Rev. 1.0 / Jul. 2012
23