Hynix 4GB PC3-12800 HMT351S6CFR8C-PB User Manual
Product codes
HMT351S6CFR8C-PB
Rev. 1.0/Sep. 2012
21
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.
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
[VIHdiffmin-VILdiffmax] / DeltaTRdiff
Differential input slew rate for falling edge
(CK-CK and DQS-DQS)
(CK-CK and DQS-DQS)
V
IHdiffmin
V
ILdiffmax
[VIHdiffmin-VILdiffmax] / DeltaTFdiff
Delta
TFdiff
Delta
TRdiff
V
IHdiffmin
V
ILdiffmax
0
D
iff
ere
nti
al
I
nput V
olt
ag
e (
i.e
. DQ
S-
D
Q
S;
CK
-CK
)