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MC-45D16CA721 データシート(PDF) 8 Page - Elpida Memory

部品番号 MC-45D16CA721
部品情報  16 M-WORD BY 72-BIT DDR SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE
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メーカー  ELPIDA [Elpida Memory]
ホームページ  http://www.elpida.com/en
Logo ELPIDA - Elpida Memory

MC-45D16CA721 データシート(HTML) 8 Page - Elpida Memory

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Preliminary Data Sheet E0035N10
8
Synchronous Characteristics
Parameter
Symbol
-C75 (PC266B)
-C80 (PC200)
Unit
Note
MIN.
MAX.
MIN.
MAX.
Clock cycle time
CL = 2.5
tCK
7.5
15
8
15
ns
CL = 2
10
15
10
15
CLK high-level width
tCH
0.45
0.55
0.45
0.55
tCK
CLK low-level width
tCL
0.45
0.55
0.45
0.55
tCK
DQ output access time from CLK, /CLK
tAC
–0.75
0.75
–0.8
0.8
ns
DQS output access time from CLK, /CLK
tDQSCK
–0.75
0.75
–0.8
0.8
ns
DQS-DQ skew (for DQS and associated DQ
signals)
tDQSQ
–0.5
0.5
–0.6
0.6
ns
DQS-DQ skew (for DQS and all DQ signals)
tDQSQA
–0.5
0.5
–0.6
0.6
ns
Data out low-impedance time from CLK, /CLK
tLZ
–0.75
0.75
–0.8
0.8
ns
Data out high-impedance time from CLK, /CLK
tHZ
–0.75
0.75
–0.8
0.8
ns
Half clock period
tHP
tCH, tCL
tCH, tCL
ns
DQS read preamble
tRPRE
0.9
1.1
0.9
1.1
tCK
DQS read postamble
tRPST
0.4
0.6
0.4
0.6
tCK
DQ-DQS hold, DQS to first DQ to go non-valid,
per access
tQH
tHP – 0.75
tHP – 1
ns
DQ and DM input setup time
tDS
0.5
0.6
ns
DQ and DM input hold time
tDH
0.5
0.6
ns
DQ and DM input pulse width (for each input)
tDIPW
1.75
2
ns
DQS write preamble setup time
tWPRES
0
0
ns
DQS write preamble
tWPRE
0.25
0.25
tCK
Write postamble
tWPST
0.4
0.6
0.4
0.6
tCK
Write command to first DQS latching transition
tDQSS
0.75
1.25
0.75
1.25
tCK
DQS input high pulse width
tDQSH
0.35
0.35
tCK
DQS input low pulse width
tDQSL
0.35
0.35
tCK
DQS falling edge to CLK setup time
tDSS
0.2
0.2
tCK
DQS falling edge hold time from CLK
tDSH
0.2
0.2
tCK
Address and control input setup time
tIS
0.9
1.1
ns
Address and control input hold time
tIH
0.9
1.1
ns
Address and control input pulse width
tIPW
2.2
2.5
ns
Internal write to read command delay
tWTR
1
1
tCK
Remark These specifications are applied to the monolithic device.


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