W9812G6GH-6 Просмотр технического описания (PDF) - Winbond

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W9812G6GH-6

2M X 4 BANKS X 16 BITS SDRAM

Winbond 

W9812G6GH

2M X 4 BANKS X 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

7.1 Power Up and Initialization ................................................................................................. 7

7.2 Programming Mode Register .............................................................................................. 7

7.3 Bank Activate Command .................................................................................................... 7

7.4 Read and Write Access Modes .......................................................................................... 7

7.5 Burst Read Command ........................................................................................................ 8

7.6 Burst Write Command......................................................................................................... 8

7.7 Read Interrupted by a Read ............................................................................................... 8

7.8 Read Interrupted by a Write................................................................................................ 8

7.9 Write Interrupted by a Write ................................................................................................ 8

7.10 Write Interrupted by a Read................................................................................................ 8

7.11 Burst Stop Command.......................................................................................................... 9

7.12 Addressing Sequence of Sequential Mode......................................................................... 9

7.13 Addressing Sequence of Interleave Mode.......................................................................... 9

7.14 Auto-precharge Command................................................................................................ 10

7.15 Precharge Command........................................................................................................ 10

7.16 Self Refresh Command..................................................................................................... 10

7.17 Power Down Mode............................................................................................................ 11

7.18 No Operation Command ................................................................................................... 11

7.19 Deselect Command .......................................................................................................... 11

7.20 Clock Suspend Mode........................................................................................................ 11

8. OPERATION MODE...................................................................................................................... 12

9. ELECTRICAL CHARACTERISTICS ............................................................................................. 13

9.1 Absolute Maximum Ratings .............................................................................................. 13

9.2 Recommended DC Operating Conditions ........................................................................ 13

9.3 Capacitance ...................................................................................................................... 13

Publication Release Date:Aug. 13, 2007

-1-

Revision A06

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