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Winbond - 2M X 4 BANKS X 16 BITS DDR SDRAM

Numéro de référence W9412G6CH
Description 2M X 4 BANKS X 16 BITS DDR SDRAM
Fabricant Winbond 
Logo Winbond 





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W9412G6CH fiche technique
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W9412G6CH
2M × 4 BANKS × 16 BITS DDR SDRAM
Table of Contents-
1. GENERAL DESCRIPTION .............................................................................................................. 4
2. FEATURES ...................................................................................................................................... 4
3. KEY PARAMETERS ........................................................................................................................ 5
4. PIN CONFIGURATION .................................................................................................................... 6
5. PIN DESCRIPTION.......................................................................................................................... 7
6. BLOCK DIAGRAM ........................................................................................................................... 8
7. FUNCTIONAL DESCRIPTION......................................................................................................... 9
7.1 Power Up Sequence ............................................................................................................. 9
7.2 Command Function ............................................................................................................... 9
7.2.1
7.2.2
7.2.3
Bank Activate Command ..................................................................................................9
Bank Precharge Command ..............................................................................................9
Precharge All Command ..................................................................................................9
7.2.4 Write Command................................................................................................................9
7.2.5 Write with Auto-precharge Command.............................................................................10
7.2.6 Read Command .............................................................................................................10
7.2.7 Read with Auto-precharge Command ............................................................................10
7.2.8 Mode Register Set Command ........................................................................................10
7.2.9 Extended Mode Register Set Command ........................................................................10
7.2.10 No-Operation Command ................................................................................................11
7.2.11 Burst Read Stop Command............................................................................................11
7.2.12 Device Deselect Command ............................................................................................11
7.2.13 Auto Refresh Command .................................................................................................11
7.2.14 Self Refresh Entry Command .........................................................................................11
7.2.15 Self Refresh Exit Command ...........................................................................................12
7.2.16 Data Write Enable /Disable Command ...........................................................................12
7.3 Read Operation ................................................................................................................... 12
7.4 Write Operation ................................................................................................................... 12
7.5 Precharge ............................................................................................................................ 13
7.6 Burst Termination ................................................................................................................ 13
7.7 Refresh Operation ............................................................................................................... 13
7.8 Power Down Mode .............................................................................................................. 13
7.9 Mode Register Operation .................................................................................................... 14
7.9.1 Burst Length field (A2 to A0) ..........................................................................................14
Publication Release Date:Jul. 04, 2007
- 1 - Revision A06
Datasheet pdf - http://www.DataSheet4U.net/

PagesPages 55
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