Hynix HMT42GR7BFR4A-PBT4 사용자 설명서
Rev. 1.0 / May. 2014
31
AC and DC Logic Input Levels for Differential Signals
Differential signal definition
Definition of differential ac-swing and “time above ac-level” t
DVAC
time
Dif
fe
rential Input V
olt
age(i.e.D
QS - DQ
S#
, CK
- CK
#)
V
IL.DIFF.AC.MAX
V
IL.DIFF.MAX
0
V
IL.DIFF.MIN
V
IL.DIFF.AC.MIN
t
DVAC
half cycle
t
DVAC