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W9812G2GB Datasheet

  • W9812G2GB

  • 1M 】 4 BANKS 】 32BITS SDRAM

  • 1746.85KB

  • 42頁

  • WINBOND

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W9812G2GB
1M
脳
4 BANKS
脳
32BITS SDRAM
Table of Contents-
1.
2.
3.
4.
5.
6.
7.
GENERAL DESCRIPTION .............................................................................................................. 3
FEATURES...................................................................................................................................... 3
AVAILABLE PART NUMBER .......................................................................................................... 3
BALL 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
Publication Release Date: Aug. 13,2007
Revision A07
-1-

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