參數(shù)資料
型號(hào)： 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(yè)數(shù)： 22/50頁(yè)
文件大?。?/td> 852K
代理商： W9425G6JB-5
W9425G6JB
Publication Release Date: Oct. 08, 2010
- 29 -
Revision A01
10. SYSTEM CHARACTERISTICS FOR DDR SDRAM
The following specification parameters are required in systems using DDR400 devices to ensure
proper system performance. These characteristics are for system simulation purposes and are
guaranteed by design.
10.1 Table 1: Input Slew Rate for DQ, DQS, and DM
AC CHARACTERISTICS
SYMBOL
DDR400
UNIT
NOTES
PARAMETER
MIN.
MAX.
DQ/DM/DQS input slew rate
measured between VIH(DC),
VIL(DC) and VIL(DC), VIH(DC)
DCSLEW
0.5
4.0
V/nS
a, k
10.2 Table 2: Input Setup & Hold Time Derating for Slew Rate
INPUT SLEW RATE
ΔtIS
ΔtIH
UNIT
NOTES
0.5 V/nS
0
pS
h
0.4 V/nS
+50
0
pS
h
0.3 V/nS
+100
0
pS
h
10.3 Table 3: Input/Output Setup & Hold Time Derating for Slew Rate
INPUT SLEW RATE
ΔtDS
ΔtDH
UNIT
NOTES
0.5 V/nS
0
pS
j
0.4 V/nS
+75
0
pS
j
0.3 V/nS
+150
0
pS
j
10.4 Table 4: Input/Output Setup & Hold Derating for Rise/Fall Delta Slew Rate
INPUT SLEW RATE
ΔtDS
ΔtDH
UNIT
NOTES
±0.0 nS/V
0
pS
i
±0.25 nS/V
+50
0
pS
i
±0.5 nS/V
+100
0
pS
i
10.5 Table 5: Output Slew Rate Characteristics (X16 Devices only)
SLEW RATE
CHARACTERISTIC
TYPICAL
RANGE (V/nS)
MINIMUM
(V/nS)
MAXIMUM
(V/nS)
NOTES
Pullup Slew Rate
1.2 ~ 2.5
0.7
5.0
a, c, d, e, f, g
Pulldown Slew Rate
1.2 ~ 2.5
0.7
5.0
a, c, d, e, f, g
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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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