參數(shù)資料
型號: HYB18L256160B
廠商: QIMONDA
英文描述: DRAMs for Mobile Applications 256-Mbit Mobile-RAM
中文描述: DRAM的針對移動應用256兆移動RAM
文件頁數(shù): 21/58頁
文件大?。?/td> 1766K
代理商: HYB18L256160B
Data Sheet
Rev. 1.73, 2006-09
01302004-CZ2R-J9SE
21
HY[B/E]18L256160B[C/F]L-7.5
256-Mbit Mobile-RAM
FIGURE 14
Single READ Burst (CAS Latency = 3)
Data from any READ burst may be concatenated with data from a subsequent READ command. In either case, a continuous
flow of data can be maintained. A READ command can be initiated on any clock cycle following a previous READ command,
and may be performed to the same or a different (active) bank. The first data element from the new burst follows either the last
element of a completed burst (
Figure 15
) or the last desired data element of a longer burst which is being truncated
(
Figure 16
). The new READ command should be issued x cycles after the first READ command, where x equals the number
of desired data elements.
FIGURE 15
Consecutive READ Bursts
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LQ WKH FDVH VKRZQ
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&/
W
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W
53
W
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W
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123
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123
123
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123
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$& 7
123
123
&/.
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'LV $3 'LVDEOH $X WR 3 HFKDUJH
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$
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3UH $ O
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'4
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'2 Q
' 2 Q
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&ROQ
%D $ &RO Q E %DQN $ &ROXPQ Q E
'2 Q E 'DWD 2XW IURP FROXPQ Q E
%XUVW /H QJWK
LQ WKH FDVH VKRZQ
VXEVHTXHQW HOHPHQWV RI 'DWD 2XW DUH SURYLGHG LQ WKH SURJUDPPHG RUGHU IROORZLQJ '2 Q E
'RQW &DUH
&/.
&/
&/
&RPPDQG
123
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123
123
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123
123
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123
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&RO E
&RO Q
'4
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'2 Q
' 2 Q
' 2 Q
'2 E
'2 E
'2 E
'4
'2 Q
'2 Q
' 2 Q
' 2 Q
' 2 E
'2 E
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