參數(shù)資料
型號: K4C89093AF-ACF5
廠商: SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述: 288Mb x18 Network-DRAM2 Specification
中文描述: 288Mb x18網(wǎng)絡(luò)DRAM2規(guī)范
文件頁數(shù): 11/55頁
文件大?。?/td> 1470K
代理商: K4C89093AF-ACF5
K4C89183AF
- 11 -
REV. 0.7 Jan. 2005
AC Characteristics and Operating Conditions
(Notes : 1, 2)
Symbol
Parameter
F6
FB
F5
Units Notes
Min
Max
Min
Max
Min
Max
t
RC
Random Cycle Time
20.0
-
22.5
-
25
-
ns
3
t
CK
Clock Cycle Time
C
L
= 4
4.0
6.0
4.5
6.0
5.0
6.0
3
C
L
= 5
3.33
6.0
3.75
6.0
4.5
6.0
3
C
L
= 6
3.0
6.0
3.33
6.0
4.0
6.0
3
t
RAC
Random Access Time
-
20.0
-
22.5
-
25
3
t
CH
Clock High Time
0.45*t
CK
-
0.45*t
CK
-
0.45*t
CK
-
3
t
CL
Clock Low Time
0.45*t
CK
-
0.45*t
CK
-
0.45*t
CK
-
3
t
CKQS
QS Access Time from CLK
-0.45
0.45
-0.45
0.45
-0.5
0.5
3, 8
t
QSQ
Data Output Skew from QS
-
0.2
-
0.25
-
0.3
4
t
AC
Data Access Time from CLK
-0.5
0.5
-0.5
0.5
-0.6
0.6
3, 8
t
OH
Data Output Hold Time from CLK
-0.5
0.5
-0.5
0.5
-0.6
0.6
3, 8
t
HP
CLK half period ( minium of Actual t
CH
, t
CL
)
min(t
CH
,
t
CL
)
-
min(t
CH
,
t
CL
)
-
min(t
CH
,
t
CL
)
-
3
t
QSP
QS(Read) Pulse Width
t
HP
-
t
QHS
-
t
HP
-
t
QHS
-
t
HP
-
t
QHS
-
4, 8
t
QSQV
Data Output Valid Time from QS
t
HP
-
t
QHS
-
t
HP
-
t
QHS
-
t
HP
-
t
QHS
-
4, 8
t
QHS
DQ, QS Hold skew factor
-
0.055x
t
CK
+0.17
-
0.055x
t
CK
+0.17
-
0.055x
t
CK
+0.17
t
DQSS
DS(Write) Low to High Setup Time
0.8*t
CK
1.2*t
CK
0.8*t
CK
1.2*t
CK
0.8*t
CK
1.2*t
CK
3
t
DSPRE
DS(Write) Preamble Pulse Width
0.4*t
CK
-
0.4*t
CK
-
0.4*t
CK
-
4
t
DSPRES
DS First Input Setup Time
0
-
0
-
0
-
3
t
DSPREH
DS First Low Input Hold Time
0.3*t
CK
-
0.3*t
CK
-
0.3*t
CK
-
3
t
DSP
DS High or Low Input Pulse Width
0.45*t
CK
0.55*t
CK
0.45*t
CK
0.55*t
CK
0.45*t
CK
0.55*t
CK
4
t
DSS
DS Input Falling Edge to Clock Setup
Time
C
L
= 4
0.75
-
0.8
-
1.0
-
3, 4
C
L
= 5
0.75
-
0.8
-
1.0
-
3, 4
C
L
= 6
0.75
-
0.8
-
1.0
-
3, 4
C
L
= 7
-
-
-
-
-
-
3, 4
t
DSPST
DS(Write) Postamble Pulse Width
0.45*t
CK
-
0.45*t
CK
0.45*t
CK
-
4
t
DSPSTH
DS(Write) Postamble Hold Time
C
L
= 4
0.75
-
0.8
-
1.0
-
3, 4
C
L
= 5
0.75
-
0.8
-
1.0
-
3, 4
C
L
= 6
0.75
-
0.8
-
1.0
3, 4
C
L
= 7
-
-
-
-
-
-
3, 4
t
DS
Data Input Setup Time from DS
0.3
-
0.35
-
0.4
-
4
t
DH
Data Input Hold Time from DS
0.3
-
0.35
-
0.4
-
4
t
IS
Command / Address Input Setup Time
0.6
-
0.6
-
0.7
-
3
t
IH
Command / Address Input Hold Time
0.6
-
0.6
-
0.7
-
3
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