W986416DH Ver la hoja de datos (PDF) - Winbond

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Fabricante

W986416DH

1M x 4 BANKS x 16 BITS SDRAM

Winbond 

W986416DH

1M × 4 BANKS × 16 BITS SDRAM

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

Publication Release Date: April 11, 2002

-1-

Revision A4

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