參數(shù)資料
型號(hào): K4D263238E-GC45
廠商: SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述: DIODE ZENER TRIPLE ISOLATED 200mW 17.88Vz 10mA-Izt 0.02545 0.05uA-Ir 14 SOT-363 3K/REEL
中文描述: 100萬x 32Bit的× 4銀行圖形雙數(shù)據(jù)速率同步DRAM的雙向數(shù)據(jù)選通和DLL
文件頁數(shù): 13/17頁
文件大?。?/td> 310K
代理商: K4D263238E-GC45
128M GDDR SDRAM
K4D263238E-GC
- 13 -
Rev 1.7 (Nov. 2003)
AC CHARACTERISTICS
*1.
The cycle to cycle jitter over 1~6 cycle short term jitter.
Parameter
Symbol
-25
-2A
-33
-36
-40
-45
Unit Note
Min
-
-
2.5
0.45
Max
Min
-
2.86
-
0.45
Max
Min
-
3.3
Max
Min
-
3.6
Max
Min
-
4.0
Max
Min
4.5
-
Max
CK cycle time
CL=3
CL=4
CL=5
t
CK
4
4
10
10
10
10
ns
ns
ns
tCK
tCK
ns
ns
ns
tCK
tCK
tCK
ns
tCK
tCK
tCK
tCK
ns
ns
ns
ns
CK high level width
t
CH
t
CL
t
DQSCK
t
AC
t
DQSQ
t
RPRE
t
RPST
t
DQSS
t
WPRES
t
WPREH
t
WPST
t
DQSH
t
DQSL
0.55
0.55
0.45
0.55
0.45
0.55
0.45
0.55
0.45
0.55
CK low level width
0.45
0.55
0.45
0.55
0.45
0.55
0.45
0.55
0.45
0.55
0.45
0.55
DQS out access time from CK
-0.55
0.55
-0.55
0.55
-0.55
0.55
-0.6
0.6
-0.6
0.6
-0.7
0.7
Output access time from CK
-0.55
0.55
-0.55
0.55
-0.55
0.55
-0.6
0.6
-0.6
-0.6
-0.7
0.7
Data strobe edge to Dout edge
-
0.35
-
0.35
-
0.35
-
0.40
-
0.40
-
0.45
1
Read preamble
0.9
1.1
0.9
1.1
0.9
1.1
0.9
1.1
0.9
1.1
0.9
1.1
Read postamble
0.4
0.6
0.4
0.6
0.4
0.6
0.4
0.6
0.4
0.6
0.4
0.6
CK to valid DQS-in
0.85
1.15
0.85
1.15
0.85
1.15
0.85
1.15
0.8
1.2
0.8
1.2
DQS-In setup time
0
-
0
-
0
-
0
-
0.
-
0.
-
DQS-in hold time
0.35
-
0.35
-
0.35
-
0.35
-
0.35
-
0.3
-
DQS write postamble
0.4
0.6
0.4
0.6
0.4
0.6
0.4
0.6
0.4
0.6
0.4
0.6
DQS-In high level width
0.45
0.55
0.45
0.55
0.45
0.55
0.45
0.55
0.45
0.55
0.45
0.55
DQS-In low level width
Address and Control input setup
t
IS
Address and Control input hold
0.45
0.55
0.45
0.55
0.45
0.55
0.45
0.55
0.45
0.55
0.45
0.55
0.8
-
0.8
-
0.8
-
0.9
-
0.9
-
1.0
-
t
IH
t
DS
t
DH
0.8
-
0.8
-
0.8
-
0.9
-
0.9
-
1.0
-
DQ and DM setup time to DQS
0.35
-
0.35
-
0.35
-
0.40
-
0.40
-
0.45
-
DQ and DM hold time to DQS
0.35
tCLmin
or
tCHmin
-
tHP-
t
QHS
-
0.35
tCLmin
or
tCHmin
-
tHP-
t
QHS
-
0.35
tCLmin
or
tCHmin
-
tHP-
t
-
0.40
tCLmin
or
tCHmin
-
tHP-
t
QHS
-
0.40
tCLmin
or
tCHmin
-
tHP-
t
QHS
-
0.45
tCLmin
or
tCHmin
-
tHP-
t
QHS
-
Clock half period
t
HP
-
-
-
-
-
-
ns
1
Data Hold skew factor
t
QHS
0.4
0.4
0.4
0.45
0.45
0.5
ns
Data output hold time from DQS
t
QH
-
-
-
-
-
-
ns
1
Jitter over 1~6 clock cycle error
t
J
*
1
t
DCERR
t
R
, t
F
-
75
-
75
-
85
-
95
-
100
-
105
ps
ps
ps
Cycle to cyde duty cycle error
-
75
-
75
-
85
-
95
-
100
-
105
Rise and fall times of CK
-
600
-
600
-
700
-
700
-
700
-
700
1
3
4
6
7
tCL
tCK
CK, CK
DQS
DQ
CS
DM
2
5
tIS
tIH
8
tDS tDH
0
tRPST
tRPRE
Db0
Db1
tDQSS
tDQSH
tDQSL
tCH
Qa1
Qa2
COMMAND
READA
WRITEB
tDQSQ
t
WPRES
t
WPREH
tDQSCK
tAC
Simplified Timing @ BL=2, CL=4
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