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參數(shù)資料
| 型號： | W942508BH |
| 英文描述： | DRAM |
| 中文描述： | 內(nèi)存 |
| 文件頁數(shù)： | 1/45頁 |
| 文件大小： | 1601K |
| 代理商： | W942508BH |
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W942508BH
8M
′
4 BANKS
′
8 BIT DDR SDRAM
Publication Release Date: March 19, 2002
- 1 -
Revision A1
Table of Contents-
1. GENERAL DESCRIPTION..................................................................................................................3
2. FEATURES..........................................................................................................................................3
3. KEY PARAMETERS............................................................................................................................3
4. PIN CONFIGURATION........................................................................................................................4
5. PIN DESCRIPTION .............................................................................................................................5
6. BLOCK DIAGRAM...............................................................................................................................6
7. ABSOLUTE MAXIMUM RATINGS ......................................................................................................7
8. RECOMMENDED DC OPERATING CONDITIONS............................................................................7
9. CAPACITANCE ...................................................................................................................................8
10. LEAKAGE AND OUTPUT BUFFER CHARACTERISTICS...............................................................8
11. DC CHARACTERISTICS...................................................................................................................9
12. AC CHARACTERISTICS AND OPERATING CONDITION.............................................................10
13. AC TEST CONDITIONS..................................................................................................................11
14. OPERATION MODE........................................................................................................................13
Simplified Truth Table............................................................................................................................ 13
Function Truth Table ............................................................................................................................. 14
Function Truth Table for CKE................................................................................................................ 17
15. SIMPLIFIED STATE DIAGRAM ......................................................................................................18
16. FUNCTIONAL DESCRIPTION ........................................................................................................19
Power Up Sequence.............................................................................................................................. 19
Command Function ............................................................................................................................... 19
Read Operation ..................................................................................................................................... 22
Write Operation ..................................................................................................................................... 22
Precharge.............................................................................................................................................. 22
Burst Termination .................................................................................................................................. 23
Refresh Operation ................................................................................................................................. 23
Power Down Mode ................................................................................................................................ 23
Mode Register Operation ...................................................................................................................... 23
17. TIMING WAVEFORMS....................................................................................................................27
Command Input Timing ......................................................................................................................... 27
Timing of the CLK Signals..................................................................................................................... 27
Read Timing (Burst Length = 4) ............................................................................................................ 28
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| W942516BH | DRAM |
| W9451GBDA-6 | SDRAM|DDR|64MX64|CMOS|DIMM|184PIN|PLASTIC |
| W981204AH-75 | x4 SDRAM |
| W981204AH-8H | x4 SDRAM |
| W982504AH-7 | x4 SDRAM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W942508CH | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8M x 4 BANKS x 8 BIT DDR SDRAM |
| W942508CH-5 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8M x 4 BANKS x 8 BIT DDR SDRAM |
| W942508CH-6 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8M x 4 BANKS x 8 BIT DDR SDRAM |
| W942508CH-7 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8M x 4 BANKS x 8 BIT DDR SDRAM |
| W942508CH-75 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8M x 4 BANKS x 8 BIT DDR SDRAM |
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