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參數(shù)資料
| 型號(hào)： | W3HG2256M72ACER665D6IMG |
| 廠商： | WHITE ELECTRONIC DESIGNS CORP |
| 元件分類： | DRAM |
| 英文描述： | 512M X 72 DDR DRAM MODULE, 0.45 ns, DMA240 |
| 封裝： | ROHS COMPLIANT, DIMM-240 |
| 文件頁數(shù)： | 12/12頁 |
| 文件大?。?/td> | 0K |
| 代理商： | W3HG2256M72ACER665D6IMG |
WV3HG2256M72AER-D6
ADVANCED
9
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
White Electronic Designs
October 2006
Rev. 2
DDR2 SDRAM COMPONENT AC TIMING PARAMETERS & SPECIFICATION (Continued)
VCC = +1.8V ± 0.1V
AC Characteristics
806
665
534
403
Parameter
Symbol
Min
Max
Min
Max
Min
Max
Min
Max
Unit
Refresh to Active or Refresh to Refresh
command interval
tRFC
TBD
127.5
70,000
127.5
70,000
127.5
70,000
ns
Average periodic refresh interval
tREFI
TBD
7.8
μs
Exit self refresh to non-read command
tXSNR
TBD
tRFC
(MIN)
+10
tRFC
(MIN)
+10
tRFC
(MIN)
+10
ns
Exit self refresh to read command
tXSRD
TBD
200
tCK
Exit self refresh timing reference
tISXR
TBD
tIS
ps
ODT
ODT turn-on delay
tAOND
TBD
222222
tCK
ODT turn-on
tAON
TBD
tAC(MIN)
tAC(MAX)
+1,000
tAC(MIN)
tAC(MAX)
+1,000
tAC(MIN)
tAC(MAX)
+1,000
ps
ODT turn-off delay
tAOFD
TBD
2.5
tCK
ODT turn-off
tAOF
TBD
tAC(MIN)
tAC(MAX)
+600
tAC(MIN)
tAC(MAX)
+600
tAC(MIN)
tAC(MAX)
+600
ps
ODT turn-on (power-down mode)
tAONPD
TBD
tAC(MIN)
+2,000
2x tCK +
tAC (MAX)
+ 1,000
tAC(MIN)
+2,000
2x tCK +
tAC (MAX)
+ 1,000
tAC(MIN)
+2,000
2x tCK +
tAC (MAX)
+ 1,000
ps
ODT turn-off (power-down mode)
tAOFPD
TBD
tAC(MIN)
+2,000
2.5x tCK
+ tAC
(MAX)
+
1,000
tAC(MIN)
+2,000
2.5x tCK
+ tAC
(MAX)
+
1,000
tAC(MIN)
+2,000
2.5x tCK
+ tAC
(MAX)
+
1,000
tCK
ODT to power-down entry latency
tANPD
TBD
333
tCK
ODT power-down exit latency
tAXPD
TBD
888
tCK
Power-Down
Exit active power-down to READ
command, MR[bit12=0]
tXARD
TBD
222
tCK
Exit active power-down to READ
command, MR[bit12=1]
tXARDS
TBD
7-AL
6-AL
tCK
Exit precharge power-down to any non-
READ command.
tXP
TBD
222
tCK
CKE minimum high/low time
tCKE
TBD
333
tCK
Note:
AC specication is based on
SAMSUNG components. Other DRAM manufactures specication may be different.
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| W3HG2256M72ACER534D6ISG | 512M X 72 DDR DRAM MODULE, 0.5 ns, DMA240 |
| W3HG2256M72ACER665D6ISG | 512M X 72 DDR DRAM MODULE, 0.45 ns, DMA240 |
| W3HG2256M72ACER665D6SG | 512M X 72 DDR DRAM MODULE, 0.45 ns, DMA240 |
| W3HG2256M72ACER806D6SG | 512M X 72 DDR DRAM MODULE, DMA240 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W3HG264M72EER403AD7XG | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:1GB - 2x64Mx72 DDR2 SDRAM REGISTERED, w/PLL, VLP Mini-DIMM |
| W3HG264M72EER534AD7XG | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:1GB - 2x64Mx72 DDR2 SDRAM REGISTERED, w/PLL, VLP Mini-DIMM |
| W3HG264M72EER665AD7XG | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:1GB - 2x64Mx72 DDR2 SDRAM REGISTERED, w/PLL, VLP Mini-DIMM |
| W3HG264M72EER806AD7XG | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:1GB - 2x64Mx72 DDR2 SDRAM REGISTERED, w/PLL, VLP Mini-DIMM |
| W3HG264M72EER-AD7 | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:1GB - 2x64Mx72 DDR2 SDRAM REGISTERED, w/PLL, VLP Mini-DIMM |
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