Hynix HMT42GR7MFR4A-H9T3 User Manual
Rev. 1.0 / Aug. 2013
36
Slew Rate Definitions for Single-Ended Input Signals
See 7.5 “Address / Command Setup, Hold and Derating” on “DDR3L Device Operation” for single-ended
slew rate definitions for address and command signals.
See 7.6 “Data Setup, Hold and Slew Rate Derating” on “DDR3L Device Operation” for single-ended slew
rate definition for data signals.
lew 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.
and figure below.
Notes:
The differential signal (i.e. CK-CK and DQS-DQS) must be linear between these thresholds.
The differential signal (i.e. CK-CK and DQS-DQS) must be linear between these thresholds.
Differential Input Slew Rate Definition for DQS, DQS and CK, CK
Differential Input Slew Rate Definition
Description
Measured
Defined by
Min
Max
Differential input slew rate for rising edge
(CK-CK and DQS-DQS)
(CK-CK and DQS-DQS)
V
ILdiffmax
V
IHdiffmin
[V
IHdiffmin
-V
ILdiffmax
] / DeltaTRdiff
Differential input slew rate for falling edge
(CK-CK and DQS-DQS)
(CK-CK and DQS-DQS)
V
IHdiffmin
V
ILdiffmax
[V
IHdiffmin
-V
ILdiffmax
] / DeltaTFdiff
Delta
TFdiff
Delta
TRdiff
V
IHdiffmin
V
ILdiffmax
0
D
iffere
ntial Input
Vo
ltag
e (i.e
. D
Q
S-
DQS;
CK-CK)