參數(shù)資料
型號: UPD488448FB-C60-53-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
文件頁數(shù): 12/80頁
文件大?。?/td> 1902K
代理商: UPD488448FB-C60-53-DQ2
Data Sheet M14837EJ3V0DS00
12
μ
PD488448 for Rev. P
Figure 2-1 Packet Formats
CTM/CFM
COL4
COL3
COL2
COL1
COL0
T
8
T
9
T
10
T
11
T
12
T
13
T
14
T
15
T
8
T
9
T
10
T
11
T
0
T
1
T
2
T
3
T
0
T
1
T
2
T
3
MA7 MA5 MA3 MA1
M=1 MA6 MA4 MA2 MA0
MB7 MB4 MB1
MB6 MB3 MB0
MB5 MB2
R2
CTM/CFM
ROW2
DR4T DR2 BR0 BR3 RsvR
R8
R5
ROW1
DR4F DR1 BR1 BR4 RsvR
R7
R4
R1
ROW0
DR3 DR0 BR2 RsvB AV=1
R6
R3
R0
ACT a0
PREX d0
MSK (b1)
PRER c0
WR b1
C4
CTM/CFM
COL4
DC4
S=1
RsvC
COL3
DC3
C5
C3
COL2
DC2 COP1
RsvB BC2
C2
DC1 COP0
BC4 BC1
C1
DC0 COP2
COP3 BC3 BC0
C0
COL1
COL0
CTM/CFM
ROW2
ROW1
ROW0
CTM/CFM
COL4
COL3
COL2
COL1
COL0
ROP2
DR4T DR2 BR0 BR3
ROP10
ROP8ROP5
DR4F DR1 BR1 BR4 ROP9ROP7ROP4ROP1
DR3 DR0 BR2 RsvB AV=0 ROP6ROP3ROP0
DX4 XOP4 RsvB BX1
M=0 DX3 XOP3 BX4
BX0
DX2 XOP2 BX3
DX1 XOP1 BX2
DX0 XOP0
T
0
T
4
T
8
T
12
T
1
T
5
T
9
T
13
T
2
T
6
T
10
T
14
T
3
T
7
T
11
T
15
ROWA Packet
COLM Packet
COLC Packet
COLX Packet
ROWR Packet
CTM/CFM
DQA7..0
DQB7..0
COL4
..COL0
ROW2
..ROW0
t
PACKET
S=1
S=1
Notes 1.
The COLM is associated with a previous COLC, and is aligned with the present COLC, indicated
by the Start bit (S=1) position.
2.
The COLX is aligned with the present COLC, indicates by the Start bit (S=1) position.
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