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W9812G6JH 2M × 4 BANKS × 16 BITS SDRAM
Table of Contents1. 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 Absolute Maximum Ratings .............................................................................................. 13 Recommended DC Operating Conditions ........................................................................ 13
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Publication Release Date: Sep. 08, 2010 Revision A04
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W9812G6JH
9.3 9.4 9.5 10.1 10.2 10.3 10.4 11.1 11.2 11.3 11.4 11.5 11.6 11.7 11.8 11.9 11.10 11.11 11.12 11.13 11.14 11.15 11.16 11.17 11.18 11.19 11.20 11.21 11.22 12.1 Capacitance ...................................................................................................................... 13 DC Characteristics ............................................................................................................ 14 AC Characteristics and Operating Condition .................................................................... 15 Command Input Timing..................................................................................................... 17 Read Timing.................................................