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W9812G2KB-6I Datasheet(PDF) 1 Page - Winbond |
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W9812G2KB-6I Datasheet(HTML) 1 Page - Winbond |
1 / 43 page W9812G2KB 1M 4 BANKS 32 BITS SDRAM Publication Release Date: Jun. 20, 2014 - 1 - Revision: A01 Table of Contents- 1. GENERAL DESCRIPTION ......................................................................................................... 3 2. FEATURES ................................................................................................................................. 3 3. ORDER INFORMATION ............................................................................................................. 4 4. BALL CONFIGURATION ............................................................................................................ 5 5. BALL DESCRIPTION.................................................................................................................. 6 6. BLOCK DIAGRAM (SINGLE CHIP) ............................................................................................ 7 7. FUNCTIONAL DESCRIPTION.................................................................................................... 8 7.1 Power Up and Initialization ............................................................................................. 8 7.2 Programming Mode Register Set command .................................................................. 8 7.3 Bank Activate Command ................................................................................................ 8 7.4 Read and Write Access Modes ...................................................................................... 8 7.5 Burst Read Command .................................................................................................... 9 7.6 Burst Command .............................................................................................................. 9 7.7 Read Interrupted by a Read ........................................................................................... 9 7.8 Read Interrupted by a Write............................................................................................ 9 7.9 Write Interrupted by a Write............................................................................................ 9 7.10 Write Interrupted by a Read............................................................................................ 9 7.11 Burst Stop Command ................................................................................................... 10 7.12 Addressing Sequence of Sequential Mode .................................................................. 10 7.13 Addressing Sequence of Interleave Mode.................................................................... 10 7.14 Auto-precharge Command ........................................................................................... 11 7.15 Precharge Command.................................................................................................... 11 7.16 Self Refresh Command ................................................................................................ 11 7.17 Power Down Mode ....................................................................................................... 12 7.18 No Operation Command............................................................................................... 12 7.19 Deselect Command ...................................................................................................... 12 7.20 Clock Suspend Mode.................................................................................................... 12 8. OPERATION MODE ................................................................................................................. 13 9. ELECTRICAL CHARACTERISTICS......................................................................................... 14 9.1 Absolute Maximum Ratings .......................................................................................... 14 9.2 Recommended DC Operating Conditions .................................................................... 14 9.3 Capacitance .................................................................................................................. 14 9.4 DC Characteristics ........................................................................................................ 15 9.5 AC Characteristics and Operating Condition................................................................ 16 10. TIMING WAVEFORMS ............................................................................................................. 18 10.1 Command Input Timing ................................................................................................ 18 10.2 Read Timing.................................................................................................................. 19 10.3 Control Timing of Input/Output Data ............................................................................. 20 |
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