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KM416RD8AS-RBM80 데이터시트(PDF) 22 Page - Samsung semiconductor

부품명 KM416RD8AS-RBM80
상세설명  128Mbit RDRAM 256K x 16 bit x 2*16 Dependent Banks Direct RDRAMTM for Consumer Package
PDF  64 Pages
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제조업체  SAMSUNG [Samsung semiconductor]
홈페이지  http://www.samsung.com/Products/Semiconductor
Logo SAMSUNG - Samsung semiconductor

KM416RD8AS-RBM80 데이터시트(HTML) 22 Page - Samsung semiconductor

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Page 19
KM416RD8AS
Direct RDRAM™
Rev. 0.9 July 1999
Target
Figure 14: Offsets for Alternate Precharge Mechanisms
CTM/CFM
DQA7..0
DQB7..0
COL4
..COL0
ROW2
..ROW0
T0
T4
T8
T12
T1
T5
T9
T13
T2
T6
T10
T14
T3
T7
T11
T15 T16
T20
T24
T28
T17
T21
T25
T29
T18
T22
T26
T30
T19
T23
T27
T31 T32
T36
T40
T44
T33
T37
T41
T45
T34
T38
T42
T46
T35
T39
T43
T47
CTM/CFM
DQA7..0
DQB7..0
COL4
..COL0
ROW2
..ROW0
T0
T4
T8
T12
T1
T5
T9
T13
T2
T6
T10
T14
T3
T7
T11
T15 T16
T20
T24
T28
T17
T21
T25
T29
T18
T22
T26
T30
T19
T23
T27
T31 T32
T36
T40
T44
T33
T37
T41
T45
T34
T38
T42
T46
T35
T39
T43
T47
CTM/CFM
DQA7..0
DQB7..0
COL4
..COL0
ROW2
..ROW0
T0
T4
T8
T12
T1
T5
T9
T13
T2
T6
T10
T14
T3
T7
T11
T15 T16
T20
T24
T28
T17
T21
T25
T29
T18
T22
T26
T30
T19
T23
T27
T31 T32
T36
T40
T44
T33
T37
T41
T45
T34
T38
T42
T46
T35
T39
T43
T47
RD a1
ACT a0
RD a2
Q (a2)
Q (a1)
ACT b0
MSK (a2)
MSK (a1)
retire (a1)
tOFFP
WR a1
D (a2)
D (a1)
ACT b0
ACT a0
Transaction a: RD
a0 = {Da,Ba,Ra}
a5 = {Da,Ba}
COLC Packet: RDA Precharge Offset
COLC Packet: WDA Precharge Offset
Transaction a: WR
a0 = {Da,Ba,Ra}
a1 = {Da,Ba,Ca1}
a2 = {Da,Ba,Ca2}
a5 = {Da,Ba}
COLX Packet: PREX Precharge Offset
RD a3
Q (a4)
Q (a3)
RDA a4
PRER a5
The RDA precharge is equivalent to a PRER command here
tOFFP
PRER a5
The WRA precharge (triggered by the automatic retire) is equivalent to a PRER command here
WRA a2
retire (a2)
tRTR
a3 = {Da,Ba,Ca3}
a4 = {Da,Ba,Ca4}
a1 = {Da,Ba,Ca1}
a2 = {Da,Ba,Ca2}
RD a1
ACT a0
RD a2
Q (a2)
Q (a1)
ACT b0
tOFFP
Transaction a: RD
a0 = {Da,Ba,Ra}
a5 = {Da,Ba}
RD a3
Q (a4)
Q (a3)
PRER a5
The PREX precharge command is equivalent to a PRER command here
a3 = {Da,Ba,Ca3}
a4 = {Da,Ba,Ca4}
a1 = {Da,Ba,Ca1}
a2 = {Da,Ba,Ca2}
RD a4
PREX a5



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