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W9825G6EH-75
W9825G6EH 4 M × 4 BANKS × 16 BITS SDRAM Table of Contents1. 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 ..................................................................................................... 8 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 -1- Publication Release Date: Mar. 11, 2010 Revision A09
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