- 您現(xiàn)在的位置：買賣IC網 > PDF目錄374256 > K4D553238F-JC50 (SAMSUNG SEMICONDUCTOR CO. LTD.) 256Mbit GDDR SDRAM PDF資料下載
參數(shù)資料
| 型號： | K4D553238F-JC50 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | 256Mbit GDDR SDRAM |
| 中文描述： | 片256Mbit GDDR SDRAM內存 |
| 文件頁數(shù)： | 14/17頁 |
| 文件大?。?/td> | 297K |
| 代理商： | K4D553238F-JC50 |
256M GDDR SDRAM
K4D553238F-JC
- 14 -
Rev 1.0 (Mar. 2004)
Note 1 :
- The JEDEC GDDR specification currently defines the output data valid window(tDV) as the time period when the data
strobe and all data associated with that data strobe are coincidentally valid.
- The previously used definition of tDV(=0.35tCK) artificially penalizes system timing budgets by assuming the worst case
output vaild window even then the clock duty cycle applied to the device is better than 45/55%
- A new AC timing term, tQH which stands for data output hold time from DQS is difined to account for clock duty cycle
variation and replaces tDV
- tQHmin = tHP-X where
. tHP=Minimum half clock period for any given cycle and is defined by clock high or clock low time(tCH,tCL)
. X=A frequency dependent timing allowance account for tDQSQmax
tQH Timing (CL4, BL2)
1
tHP
CK, CK
DQS
DQ
CS
2
5
0
COMMAND
READA
tQH
Qa0
tDQSQ(max)
tDQSQ(max)
Qa1
3
4
相關PDF資料 |
PDF描述 |
|---|---|
| K4E151611 | 1M x 16Bit CMOS Dynamic RAM with Extended Data Out |
| K4E151611D | 1M x 16Bit CMOS Dynamic RAM with Extended Data Out |
| K4E151612D | 1M x 16Bit CMOS Dynamic RAM with Extended Data Out |
| K4E171611D | 1M x 16Bit CMOS Dynamic RAM with Extended Data Out |
| K4E171612D | Aluminum Electrolytic Radial Lead Hi Temp Capacitor; Capacitance: 22uF; Voltage: 100V; Case Size: 10x12.5 mm; Packaging: Bulk |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| K4D55323QF-GC33 | 制造商:Samsung Semiconductor 功能描述: |
| K4D623237A-QC60 | 制造商:Samsung Semiconductor 功能描述: 制造商:Samsung Semiconductor 功能描述:2M X 32 DDR DRAM, 5.5 ns, PQFP100 |
| K4D623238B-GC | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:64Mbit DDR SDRAM |
| K4D623238B-GC/L33 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:64Mbit DDR SDRAM |
| K4D623238B-GC/L40 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:64Mbit DDR SDRAM |
發(fā)布緊急采購，3分鐘左右您將得到回復。