
W986416DH
1M
′
4 BANKS
′
16 BITS SDRAM
Publication Release Date: April 11, 2002
- 1 -
Revision A4
Table of Contents-
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 ...............................................................................................................9
Precharge Command......................................................................................................................10
Self Refresh Command ..................................................................................................................10
Power Down Mode..........................................................................................................................10
No Operation Command.................................................................................................................11
Deselect Command........................................................................................................................11
Clock Suspend Mode......................................................................................................................11
8. TABLE OF OPERATING MODES .....................................................................................................12
Simplified State Diagram ................................................................................................................13
9. DC CHARACTERISTICS...................................................................................................................14
Absolute Maximum Rating..............................................................................................................14
10. RECOMMENDED DC OPERATING CONDITIONS........................................................................14