參數(shù)資料
型號(hào): HYB18L256160B
廠商: QIMONDA
英文描述: DRAMs for Mobile Applications 256-Mbit Mobile-RAM
中文描述: DRAM的針對(duì)移動(dòng)應(yīng)用256兆移動(dòng)RAM
文件頁(yè)數(shù): 29/58頁(yè)
文件大?。?/td> 1766K
代理商: HYB18L256160B
Data Sheet
Rev. 1.73, 2006-09
01302004-CZ2R-J9SE
29
HY[B/E]18L256160B[C/F]L-7.5
256-Mbit Mobile-RAM
TABLE 13
Timing Parameters for WRITE
FIGURE 25
WRITE Burst (CAS Latency = 2)
Parameter
Symbol
- 7.5
Units
Note
min.
max.
DQ and DQM input setup time
DQ input hold time
DQM input hold time
DQM write mask latency
ACTIVE to ACTIVE command period
ACTIVE to READ or WRITE delay
ACTIVE to PRECHARGE command period
WRITE recovery time
PRECHARGE command period
t
IS
t
IH
1.5
0.8
0.5
0
67
19
45
14
19
100k
ns
ns
ns
t
CK
ns
ns
ns
ns
ns
t
DQW
t
RC
t
RCD
t
RAS
t
WR
t
RP
1)
1) These parameters account for the number of clock cycles and depend on the operating frequency as follows:
no. of clock cycles = specified delay / clock period; round up to next integer.
1)
1)
1)
1)
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', Q 'DWD ,Q WR FROXPQ Q
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LQ WKH FDVH VKRZQ
'RQW &DUH
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W
5&'
W
5$6
W
5&
W
53
W
:5
&RPPDQG
123
:5,7(
123
123
123
35(
123
$& 7
$& 7
123
$G GUHVV
%D $
&RO Q
%D $
5RZ [
5RZ E
$3
$3
3UH %DQN $
3UH $ O
$
$3
'4
', Q
', Q
', Q
', Q
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