參數(shù)資料
型號(hào)： W987Z6CHG75
廠商： WINBOND ELECTRONICS CORP
元件分類： DRAM
英文描述： 8M X 16 SYNCHRONOUS DRAM, 5.4 ns, PDSO54
封裝： 0.400 INCH, TSOP2-54
文件頁(yè)數(shù)： 1/46頁(yè)
文件大?。?/td> 1608K
代理商： W987Z6CHG75
Preliminary W987Z6CH
2M
× 4 BANKS × 16 BIT SDRAM
Publication Release Date: September 3, 2002
- 1 -
Revision A1
Table of Contents-
1. GENERAL DESCRIPTION ..................................................................................................................3
2. FEATURES ..........................................................................................................................................3
3. AVAILABLE PART NUMBER ..............................................................................................................3
4. PIN CONFIGURATION........................................................................................................................4
5. BALL DESCRIPTION...........................................................................................................................5
6. BLOCK DIAGRAM ...............................................................................................................................6
7. ABSOLUTE MAXIMUM RATINGS ......................................................................................................7
8. DC ELECTRICAL CHARACTERISTICS AND OPERATING CONDITIONS.......................................7
9. CAPACITANCE ...................................................................................................................................8
10. OPERATING CURRENT ...................................................................................................................8
11. AC CHARACTERISTICS AND OPERATING CONDITION...............................................................9
12. FUNCTIONAL DESCRIPTION ........................................................................................................12
Power Up Sequence.......................................................................................................................12
Command Function ........................................................................................................................12
Read Operation ..............................................................................................................................15
Write Operation...............................................................................................................................15
Precharge .......................................................................................................................................15
Burst Termination ...........................................................................................................................15
Interruption......................................................................................................................................16
Refresh Operation ..........................................................................................................................16
Power Down Mode .........................................................................................................................17
Mode Register Set Operation .........................................................................................................17
Simplified State Diagram ................................................................................................................19
13. TIMING WAVEFORMS....................................................................................................................20
Command Input Timing ..................................................................................................................20
Read Timing ...................................................................................................................................21
Control Timing of Input/Output Data...............................................................................................22
14. OPERATING TIMING EXAMPLE ....................................................................................................24
Interleaved Bank Read (Burst Length = 4, CAS Latency = 3)........................................................24
Interleaved Bank Read (Burst Length = 4, CAS Latency = 3, Auto Precharge).............................25
Interleaved Bank Read (Burst Length = 8, CAS Latency = 3)........................................................26
Interleaved Bank Read (Burst Length = 8, CAS Latency = 3, Auto Precharge).............................27
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