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W942516BH Datasheet

  • W942516BH

  • DRAM

  • 45頁(yè)

  • ETC

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W942516BH
4M
脳
4 BANKS
脳
16 BIT DDR SDRAM
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 OUPPUT 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
Write Timing (Burst Length = 4).............................................................................................................. 29
DM, DATA MASK (W942508BH /W942504BH) ..................................................................................... 30
Publication Release Date: March 19, 2002
Revision A1
-1-

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