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W9812G2GH Datasheet

  • W9812G2GH

  • a high-speed synchronous dynamic random access memory (SDRAM...

  • 1759.33KB

  • 42頁

  • WINBOND

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W9812G2GH
Table of Contents-
1
2
3
4
5
6
7
GENERAL DESCRIPTION .............................................................................................................. 3
FEATURES...................................................................................................................................... 3
AVAILABLE PART NUMBER .......................................................................................................... 3
PIN CONFIGURATION.................................................................................................................... 4
PIN DESCRIPTION ......................................................................................................................... 5
BLOCK DIAGRAM........................................................................................................................... 6
FUNCTIONAL DESCRIPTION ........................................................................................................ 7
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
7.10
7.11
7.12
7.13
7.14
7.15
7.16
7.17
7.18
7.19
7.20
8
9
Power Up and Initialization.................................................................................................... 7
Programming Mode Register ................................................................................................ 7
Bank Activate Command ....................................................................................................... 7
Read and Write Access Modes ............................................................................................. 7
Burst Read Command ........................................................................................................... 8
Burst Write 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 ............................................................................................................ 9
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 .............................................................................................................. 11
No Operation Command...................................................................................................... 11
Deselect Command ............................................................................................................. 11
Clock Suspend Mode .......................................................................................................... 11
OPERATION MODE...................................................................................................................... 12
ELECTRICAL CHARACTERISTICS ............................................................................................. 13
9.1
9.2
9.3
9.4
Absolute Maximum Ratings................................................................................................. 13
Recommended DC Operating Conditions ........................................................................... 13
Capacitance......................................................................................................................... 13
DC Characteristics............................................................................................................... 14
-1-
Publication Release Date: Aug. 13,2007
Revision A07

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