
W982516BH
4M
′
4 BANKS
′
16 BIT SDRAM
Publication Release Date: December 13, 2001
- 1 -
Revision A2
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. ELECTRICAL CHARACTERISTICS....................................................................................................7
Absolute Maximum Ratings................................................................................................................7
Recommended DC Operating Conditions..........................................................................................7
Capacitance........................................................................................................................................7
AC Characteristics and Operating Condition......................................................................................8
DC Characteristics..............................................................................................................................9
8. OPERATION MODE..........................................................................................................................11
9. FUNCTIONAL DESCRIPTION ..........................................................................................................12
Power-up and Initialization ...............................................................................................................12
Programming Mode Register............................................................................................................12
Bank Activate Command..................................................................................................................12
Read and Write Access Modes........................................................................................................12
Burst Read Command......................................................................................................................13
Burst Write Command......................................................................................................................13
Read Interrupted by a Read.............................................................................................................13
Read Interrupted by a Write .............................................................................................................13
Write Interrupted by a Write..............................................................................................................13
Write Interrupted by a Read .............................................................................................................13
Burst Stop Command.......................................................................................................................13
Addressing Sequence of Sequential Mode......................................................................................14
Addressing Sequence of Interleave Mode .......................................................................................14
Auto Precharge Command...............................................................................................................15
Precharge Command .......................................................................................................................15
Self Refresh Command....................................................................................................................15
Power-down Mode............................................................................................................................15
No Operation Command...................................................................................................................16
Deselect Command..........................................................................................................................16
Clock Suspend Mode .......................................................................................................................16