參數(shù)資料
型號(hào)： UPD488448FF-C80-45-DQ2
廠商： NEC Corp.
英文描述： 128 M-bit Direct Rambus⑩ DRAM
中文描述： 128 M位DRAM的直接Rambus的⑩
文件頁(yè)數(shù)： 18/80頁(yè)
文件大?。?/td> 1902K
代理商： UPD488448FF-C80-45-DQ2
Data Sheet M14837EJ3V0DS00
18
μ
PD488448 for Rev. P
Table 6-1 ROW-to-ROW Packet Interaction - Rules
Case #
ROPa Da
Ba
Ra
ROPb Db
Bb
Rb
t
RRDELAY
Example
RR1
RR2
RR3
RR4
ACT
ACT
ACT
ACT
Da
Da
Da
Da
Ba
Ba
Ba
Ba
Ra
Ra
Ra
Ra
ACT
ACT
ACT
ACT
/= Da
== Da /= {Ba, Ba+1, Ba-1}
== Da == {Ba+1, Ba-1}
== Da == {Ba}
xxxx
x..x
x..x
x..x
x..x
t
PACKET
t
RR
t
RC
- illegal unless PRER to Ba / Ba+1 / Ba-1
t
RC
- illegal unless PRER to Ba / Ba+1 / Ba-1
Figure 10-2
Figure 10-2
Figure 10-1
Figure 10-1
RR5
RR6
RR7
RR8
ACT
ACT
ACT
ACT
Da
Da
Da
Da
Ba
Ba
Ba
Ba
Ra
Ra
Ra
Ra
PRER /= Da
PRER == Da /= {Ba, Ba+1, Ba-1}
PRER == Da == {Ba+1, Ba-1}
PRER == Da == {Ba}
xxxx
x..x
x..x
x..x
x..x
t
PACKET
t
PACKET
t
RAS
t
RAS
Figure 10-2
Figure 10-2
Figure 10-1
Figure 13-1
RR9
RR10
RR10a
RR10b
RR11
RR12
PRER Da
PRER Da
PRER Da
PRER Da
PRER Da
PRER Da
Ba
Ba
Ba
Ba
Ba
Ba
Ra
Ra
Ra
Ra
Ra
Ra
ACT
ACT
ACT
ACT
ACT
ACT
/= Da
== Da /= {Ba, Ba+-1, Ba+-2}
== Da == {Ba+2}
== Da == {Ba-2}
== Da == {Ba+1, Ba-1}
== Da == {Ba}
xxxx
x..x
x..x
x..x
x..x
x..x
x..x
t
PACKET
t
PACKET
t
PACKET
/t
RP
if Ba+1 is precharged/activated.
t
PACKET
/t
RP
if Ba-1 is precharged/activated.
t
RP
t
RP
Figure 10-3
Figure 10-3
Figure 10-1
Figure 10-1
RR13
RR14
RR15
RR16
PRER Da
PRER Da
PRER Da
PRER Da
Ba
Ba
Ba
Ba
Ra
Ra
Ra
Ra
PRER /= Da
PRER == Da /= {Ba, Ba+1, Ba-1}
PRER == Da == {Ba+1, Ba-1}
PRER == Da == {Ba}
xxxx
x..x
x..x
x..x
x..x
t
PACKET
t
PP
t
PP
t
PP
Figure 10-3
Figure 10-3
Figure 10-3
Figure 10-3
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