參數(shù)資料
型號: W9412G6CH-5
廠商: WINBOND ELECTRONICS CORP
元件分類: DRAM
英文描述: 8M X 16 DDR DRAM, 0.7 ns, PDSO66
封裝: 0.400 INCH, 0.65 MM PITCH, ROHS COMPLIANT, TSOP2-66
文件頁數(shù): 22/55頁
文件大?。?/td> 2011K
代理商: W9412G6CH-5
W9412G6CH
Publication Release Date: Nov. 19, 2007
- 29 -
Revision A07
Continued
-6
-75
SYM.
PARAMETER
MIN. MAX. MIN. MAX.
UNIT NOTES
tRPRE
DQS Read Preamble Time
0.9
1.1
0.9
1.1
tRPST
DQS Read Postamble Time
0.4
0.6
0.4
0.6
tCK
11
tDS
DQ and DM Setup Time
0.4
0.5
tDH
DQ and DM Hold Time
0.4
0.5
tDIPW
DQ and DM Input Pulse Width (for each input)
1.75
nS
tDQSH
DQS Input High Pulse Width
0.35
tDQSL
DQS Input Low Pulse Width
0.35
tDSS
DQS Falling Edge to CLK Setup Time
0.2
tDSH
DQS Falling Edge Hold Time from CLK
0.2
tCK
11
tWPRES Clock to DQS Write Preamble Set-up Time
0
nS
tWPRE
DQS Write Preamble Time
0.3
0.25
tWPST
DQS Write Postamble Time
0.4
0.6
0.4
tDQSS
Write Command to First DQS Latching Transition
0.75
1.25
0.75
1.25
tCK
11
tIS
Input Setup Time
0.8
0.9
tIH
Input Hold Time
0.8
0.9
tIPW
Control & Address Input Pulse Width (for each input)
2.2
tHZ
Data-out High-impedance Time from CLK, CLK
-0.7
0.7
-0.75
0.75
tLZ
Data-out Low-impedance Time from CLK, CLK
-0.7
0.7
-0.75
0.75
tT(SS)
SSTL Input Transition
0.5
1.5
0.5
1.5
nS
tWTR
Internal Write to Read Command Delay
1
tCK
tXSNR
Exit Self Refresh to non-Read Command
75
nS
tXSRD
Exit Self Refresh to Read Command
200
tCK
tREFI
Refresh Interval Time (4k / 64mS)
15.6
S
17
tMRD
Mode Register Set Cycle Time
12
15
nS
9.7 AC Test Conditions
PARAMETER
SYMBOL
VALUE
UNIT
Input High Voltage (AC)
VIH
VREF + 0.31
V
Input Low Voltage (AC)
VIL
VREF - 0.31
V
Input Reference Voltage
VREF
0.5 x VDDQ
V
Termination Voltage
VTT
0.5 x VDDQ
V
Differential Clock Input Reference Voltage
VR
Vx (AC)
V
Input Difference Voltage. CLK and CLK Inputs (AC)
VID (AC)
1.5
V
Output Timing Measurement Reference Voltage
VOTR
0.5 x VDDQ
V
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