MT47H64M16HR-25EITH Datasheet, PDF (131/134 Pages) Micron Technology – DDR2 SDRAM MT47H256M4 – 32 Meg x 4 x 8 banks MT47H128M8 – 16 Meg x 8 x 8 banks MT47H64M16 – 8 Meg x 16 x 8 banks

1Gb: x4, x8, x16 DDR2 SDRAM
ODT Timing
Figure 83: 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)
R_TT
tAONPD _(MAX)
tAOFPD _(MIN)
tAOFPD _(MAX)
Transitioning R_TT
R_TT Unknown
R_TT On
Don’t Care
Figure 84: 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
R_TT
ODT
R_TT
tAOFD
tAOF _(MAX)
tAOF _(MIN)
tAOFPD _(MAX)
Transitioning R_TT
tAOFPD _(MIN)
R_TT Unknown
R_TT ON
Don’t Care
PDF: 09005aef821ae8bf
1GbDDR2.pdf – Rev. V 6/10 EN
131
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