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W9864G6DB-7 Datasheet

  • W9864G6DB-7

  • 1M x 4 BANKS x 16 BITS SDRAM

  • 48頁

  • WINBOND

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W9864G6DB
1M
脳
4 BANKS
脳
16 BITS SDRAM
Table of Contents-
1. GENERAL DESCRIPTION.................................................................................................................. 3
2. FEATURES ......................................................................................................................................... 3
3. AVAILABLE PART NUMBER.............................................................................................................. 3
4. PIN CONFIGURATION ....................................................................................................................... 4
5. PIN DESCRIPTION ............................................................................................................................. 5
6. BLOCK DIAGRAM .............................................................................................................................. 6
7. FUNCTIONAL DESCRIPTION............................................................................................................ 7
Power Up and Initialization................................................................................................................ 7
Programming Mode Register ............................................................................................................ 7
Bank Activate Command................................................................................................................... 7
Read and Write Access Modes......................................................................................................... 7
Burst Read Command....................................................................................................................... 8
Burst Command ................................................................................................................................ 8
Read Interrupted by a Read.............................................................................................................. 8
Read Interrupted by a Write .............................................................................................................. 8
Write Interrupted by a Write .............................................................................................................. 8
Write Interrupted by a Read .............................................................................................................. 8
Burst Stop Command ........................................................................................................................ 8
Addressing Sequence of Sequential Mode....................................................................................... 9
Addressing Sequence of Interleave Mode ........................................................................................ 9
Auto Precharge Command.............................................................................................................. 10
Precharge Command ...................................................................................................................... 10
Self Refresh Command................................................................................................................... 10
Power Down Mode .......................................................................................................................... 10
No Operation Command ................................................................................................................. 11
Deselect Command......................................................................................................................... 11
Clock Suspend Mode ...................................................................................................................... 11
Table of Operating Modes............................................................................................................... 12
Simplified State Diagram................................................................................................................. 13
8. DC CHARACTERISTICS .................................................................................................................. 14
Absolute Maximum Rating .............................................................................................................. 14
Recommended DC Operating Conditions....................................................................................... 14
Capacitance .................................................................................................................................... 14
Publication Release Date: January 27, 2003
Revision A1
-1-

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