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參數(shù)資料
| 型號： | W942504CH-75 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | DRAM |
| 英文描述： | 64M X 4 DDR DRAM, 0.75 ns, PDSO66 |
| 封裝： | 0.400 X 0.875 INCH, 0.65 MM PITCH, TSOP2-66 |
| 文件頁數(shù)： | 1/45頁 |
| 文件大小： | 1261K |
| 代理商： | W942504CH-75 |
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W942504CH
16M
× 4 BANKS × 4 BIT DDR SDRAM
Publication Release Date: February 14, 2003
- 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 DAIAGRAM ............................................................................................................................ 6
7. ELECTRICAL CHARACTERISTICS ...................................................................................................7
Absolute Maximum Ratings ..................................................................................................................... 7
Recommended DC Operating Conditions ............................................................................................... 7
Capacitance............................................................................................................................................. 8
Leakage and Output Buffer Characteristics............................................................................................. 8
DC Characteristics................................................................................................................................... 9
AC Characteristics and Operating Condition ......................................................................................... 10
AC Test Conditions................................................................................................................................ 11
8. OPERATION MODE.......................................................................................................................... 13
Simplified Truth Table............................................................................................................................ 13
Function Truth Table.............................................................................................................................. 14
Function Truth Table for CKE ................................................................................................................ 17
Simplified State Diagram ....................................................................................................................... 18
9. FUNCTIONAL DESCRIPTION.......................................................................................................... 19
Power Up Sequence.............................................................................................................................. 19
Command Function ............................................................................................................................... 19
Read Operation ..................................................................................................................................... 22
Write Operation...................................................................................................................................... 22
Precharge .............................................................................................................................................. 22
Burst Termination .................................................................................................................................. 22
Refresh Operation ................................................................................................................................. 23
Power Down Mode ................................................................................................................................ 23
Mode Register Operation....................................................................................................................... 23
10. TIMING WAVEFORMS ................................................................................................................... 27
Command Input Timing ......................................................................................................................... 27
Timing of the CLK Signals ..................................................................................................................... 27
Read Timing (Burst Length = 4)............................................................................................................. 28
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| WV3HG64M72EEU403PD4ISG | 64M X 72 DDR DRAM MODULE, 0.6 ns, ZMA200 |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| W942508BH | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DRAM |
| 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 |
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