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K4C89363AF Datasheet, PDF (9/58 Pages) Samsung semiconductor – 2,097,152-WORDS x 4 BANKS x 36-BITS DOUBLE DATA RATE Network-DRAM
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K4C89363AF
AC Characteristics and Operating Conditions (Notes : 1, 2)
Symbol
Parameter
t RC
Random Cycle Time
t CK
Clock Cycle Time
t RAC
t CH
t CL
t CKQS
tQSQ
t AC
t OH
t HP
tQSP
t QSQV
tQHS
t DQSS
tDSPRE
t DSPRES
t DSPREH
t DSP
Random Access Time
Clock High Time
Clock Low Time
QS Access Time from CLK
Data Output Skew from QS
Data Access Time from CLK
Data Output Hold Time from CLK
C L K h a l f p e r i o d ( m i n i u m o f A c t u a l tC H , t CL )
QS(Read) Pulse Width
Data Output Valid Time from QS
DQ, QS Hold skew factor
DS(Write) Low to High Setup Time
DS(Write) Preamble Pulse Width
DS First Input Setup Time
DS First Low Input Hold Time
DS High or Low Input Pulse Width
t DSS
DS Input Falling Edge to Clock Setup Time
t DSPST
DS(Write) Postamble Pulse Width
t DSPSTH
DS(Write) Postamble Hold Time
t DS
Data Input Setup Time from DS
t DH
Data Input Hold Time from DS
t IS
Command / Address Input Setup Time
t IH
Command / Address Input Hold Time
F6
Min
Max
FB
Min
Max
F5
Min
Max
Units Notes
20.0
-
22.5
-
25
-
3
CL = 4
4.0
7.5
4.5
7.5
5.0
7.5
3
CL = 5
3.33
7.5
3.75
7.5
4.5
7.5
3
CL = 6
3.0
7.5
3.33
7.5
4.0
7.5
3
-
20.0
-
22.5
-
25
3
0 . 4 5 * tC K
-
0.45*tC K
-
0 . 4 5 * tC K
-
3
0 . 4 5 * tC K
-
0.45*tC K
-
0 . 4 5 * tC K
-
3
-0.45
0.45
-0.45
0.45
-0.5
0.5
3, 8
-
0.2
-
0.25
-
0.3
4
-0.5
0.5
-0.5
0.5
-0.6
0.6
3, 8
-0.5
0.5
-0.5
0.5
-0.6
0.6
3, 8
m i n ( tC H , t CL )
-
m i n ( tC H , tC L )
-
m i n ( tC H , t CL )
-
3
t HP-t QHS
-
t H P-tQ H S
-
t HP-t QHS
-
4, 8
t HP-t QHS
-
t H P-tQ H S
-
t HP-t QHS
-
4, 8
0.055x
0.055x
0.055x
-
-
-
t CK+ 0 . 1 7
tC K+0.17
t CK+ 0 . 1 7
ns
0.8*t CK
1.2*tC K
0 . 8 * tC K
1.2*t C K
0.8*t CK
1.2*tC K
3
0.4*t CK
-
0 . 4 * tC K
-
0.4*t CK
-
4
0
-
0
-
0
-
3
0.3*t CK
-
0 . 3 * tC K
-
0.3*t CK
-
3
0 . 4 5 * tC K
0.55*t C K
0.45*tC K
0.55*tC K
0 . 4 5 * tC K
0.55*t CK
4
CL = 4
0.9
-
0.9
-
1.0
-
3, 4
CL = 5
0.9
-
0.9
-
1.0
-
3, 4
CL = 6
0.9
-
0.9
-
1.0
-
3, 4
0 . 4 5 * tC K
-
0.45*tC K
0 . 4 5 * tC K
-
4
CL = 4
0.9
-
0.9
-
1.0
-
3, 4
CL = 5
0.9
-
0.9
-
1.0
-
3, 4
CL = 6
0.9
-
0.9
-
1.0
3, 4
0.3
-
0.35
-
0.4
-
4
0.3
-
0.35
-
0.4
-
4
0.6
-
0.6
-
0.7
-
3
0.6
-
0.6
-
0.7
-
3
-9-
REV. 0.0 Nov. 2002
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