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| 型號： | W9425G6JB-5 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | DRAM |
| 英文描述： | DDR DRAM, PBGA60 |
| 封裝： | 8 X 13 MM, ROHS COMPLIANT, TFBGA-60 |
| 文件頁數(shù)： | 20/50頁 |
| 文件大?。?/td> | 852K |
| 代理商： | W9425G6JB-5 |
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W9425G6JB
Publication Release Date: Oct. 08, 2010
- 27 -
Revision A01
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
V SWING (MAX)
VDDQ
VSS
T
VIH min (AC)
VREF
VIL max (AC)
SLEW = (VIHmin (AC) - VILmax (AC)) / T
Output
50 Ω
VTT
Timing Reference Load
Output
V(out)
30pF
Notes:
(1)
Conditions outside the limits listed under “Absolute Maximum Ratings” may cause permanent damage to the device.
(2)
All voltages are referenced to VSS, VSSQ.
(3)
Peak to peak AC noise on VREF may not exceed
±2% VREF(DC).
(4)
VOH = 1.95V, VOL = 0.35V
(5)
VOH = 1.9V, VOL = 0.4V
(6)
The values of IOH(DC) is based on VDDQ = 2.3V and VTT = 1.19V.
The values of IOL(DC) is based on VDDQ = 2.3V and VTT = 1.11V.
(7)
These parameters depend on the cycle rate and these values are measured at a cycle rate with the minimum values
of tCK and tRC.
(8)
VTT is not applied directly to the device. VTT is a system supply for signal termination resistors is expected to be set
equal to VREF and must track variations in the DC level of VREF.
(9)
These parameters depend on the output loading. Specified values are obtained with the output open.
(10) Transition times are measured between VIH min(AC) and VIL max(AC).Transition (rise and fall) of input signals have a fixed
slope.
(11) IF the result of nominal calculation with regard to tCK contains more than one decimal place, the result is rounded up to
the nearest decimal place.
(i.e., tDQSS = 1.25
× tCK, tCK = 5 nS, 1.25 × 5 nS = 6.25 nS is rounded up to 6.2 nS.)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W9425G6JB-5 TR | 制造商:Winbond Electronics Corp 功能描述:256M DDR SDRAM X16, 200MHZ |
| W9425G6JB-5I | 制造商:Winbond Electronics Corp 功能描述:DRAM Chip DDR SDRAM 256M-Bit 16Mx16 2.5V 制造商:Winbond Electronics 功能描述:IC MEMORY 制造商:Winbond Electronics Corp 功能描述:IC MEMORY |
| W9425G6JB-5I TR | 制造商:Winbond Electronics Corp 功能描述:256M DDR SDRAM X16, 200MHZ, IN |
| W9425G6JH | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4 M × 4 BANKS × 16 BITS DDR SDRAM |
| W9425G6JH-4 | 制造商:Winbond Electronics Corp 功能描述:DRAM Chip DDR SDRAM 256M-Bit 16Mx16 2.5V 66-Pin TSOP-II 制造商:Winbond Electronics 功能描述:IC MEMORY 制造商:Winbond Electronics Corp 功能描述:IC MEMORY 制造商:Winbond 功能描述:16MX16,256MB DDR,250MHZ,2.5V , TSOP 66PIN GREEN |
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