Datasheet

ODT Timing Diagrams
The following pages provide example timing diagrams
T0 T1 T2 T8 T9 T10 T11 T14 T15 T16
T17 T18
CK#
CK
T19 T20 T21
TRANSITIONING DATA
T22 T23 T24
RTT
t
ADC
(min)
CMD
ODT
ODTLcwn
DODTLon = WL - 2
R
TT_PARK
t
ADC
(max)
R
TT_WR
R
TT_PARK
t
ADC
(min)
t
ADC
(max)
t
ADC
(min)
t
ADC
(max)
R
TT_PARK
R
TT_NOM
ODTLcnw
WR
DODTLoff = WL - 2
t
ADC
(min)
t
ADC
(max)
diff
Figure 168. ODT timing (Dynamic ODT, 1tCK preamble, CL=14, CWL=11, BL=8, AL=0, CRC Disabled)
T0 T1 T2 T5 T9 T10 T11 T12 T15 T16
T17 T18
CK#
CK
T19 T20 T21
TRANSITIONING DATA
T22 T23 T24
RTT
CMD
ODT
ODTLcnw
ODTLcwn8
R
TT_NOM
R
TT_WR
t
ADC
(min)
t
ADC
(max)
R
TT_NOM
R
TT_PARK
DODTLoff = CWL - 2
WR
t
ADC
(min)
t
ADC
(max)
t
ADC
(min)
t
ADC
(max)
diff
Figure 169. Dynamic ODT overlapped with Rtt_NOM (CL=14, CWL=11, BL=8, AL=0, CRC Disabled)
AS4C256M16D4
Confidential
- 153 of 201 -
Rev.1.0 Aug.2019