W632GU6NB
Publication Release Date: Aug. 20, 2018
Revision: A01
- 88 -
T0
T1
T2
T4
CK#
CK
DON'T CARE
T5
T3
ODT
T6
T7
T8
T9
T10
T11
NOP
TRANSITIONING
Address
RTT
WRS4
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
Command
DQ
DQS, DQS#
VALID
ODTLcnw
Rtt_WR
Din
b
Din
b+2
Din
b+3
Din
b+1
WL
ODTLcwn4
Rtt_Nom
t
ADCmax
t
ADCmin
t
AOFmin
t
AOFmax
ODTH4
t
AONmin
t
ADCmax
ODTLoff
ODTLon
Notes:
1. ODTH4 is defined from ODT registered high to ODT registered low, so in this example, ODTH4 is satisfied.
2. ODT registered low at T5 would also be legal.
Figure 80
– Dynamic ODT: Behavior with ODT pin being asserted together with write command
for duration of 6 clock cycles, example for BC4 (via MRS or OTF), AL = 0, CWL = 5
T0
T1
T2
T4
CK#
CK
DON'T CARE
T5
T3
ODT
T6
T7
T8
T9
T10
T11
NOP
TRANSITIONING
Address
RTT
WRS4
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
Command
DQ
DQS, DQS#
VALID
ODTLcnw
Rtt_WR
Din
b
Din
b+2
Din
b+3
Din
b+1
WL
ODTLcwn4
t
AOFmax
t
AOFmin
ODTH4
t
AONmin
t
ADCmax
ODTLoff
ODTLon
Note:
1. Example for BC4 (via MRS or OTF), AL = 0, CWL = 5. In this example, ODTH4 = 4 is exactly satisfied.
Figure 81
– Dynamic ODT: Behavior with ODT pin being asserted together with write command
for duration of 4 clock cycles