Document
W9864G6DB
Table of Contents-
1M × 4 BANKS × 16 BITS SDRAM
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
Power Up and Initialization................................................................................................................ 7 Programming Mode Register ............................................................................................................ 7 Bank Activate Command................................................................................................................... 7 Read and Write Access Modes......................................................................................................... 7 Burst Read Command....................................................................................................................... 8 Burst 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 ........................................................................................................................ 8 Addressing Sequence of Sequential Mode....................................................................................... 9 Addressing Sequence of Interleave Mode ........................................................................................ 9 Auto Precharge Command.............................................................................................................. 10 Pr.