1Gb: x4, x8, x16 DDR2 SDRAM
ODT Timing
Figure 84: ODT Timing for Slow-Exit or Precharge Power-Down Modes
CK#
T0
T1
T2
T3
T4
T5
T6
T7
CK
tCK
tCH tCL
Command
Valid
Valid
Valid
Valid
Valid
Valid
Valid
Valid
Address
Valid
Valid
Valid
Valid
Valid
Valid
Valid
Valid
CKE
ODT
tAONPD (MIN)
RTT
tAONPD (MAX)
tAOFPD (MIN)
tAOFPD (MAX)
Transitioning RTT
RTT Unknown
RTT On
Don’t Care
Figure 85: ODT Turn-Off Timings When Entering Power-Down Mode
CK#
T0
T1
T2
T3
T4
T5
T6
CK
Command
NOP
NOP
NOP
NOP
NOP
NOP
NOP
tANPD (MIN)
CKE
ODT
RTT
ODT
RTT
tAOFD
tAOF (MAX)
tAOF (MIN)
tAOFPD (MAX)
Transitioning RTT
tAOFPD (MIN)
RTT Unknown
RTT ON
Don’t Care
PDF: 09005aef8565148a
1GbDDR2.pdf – Rev. AA 07/14 EN
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