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Preliminary Data Sheet M15874EJ5V0DS
7
μ
PD4632312A-X
CONTENTS
1. Initialization....................................................................................................................................................................8
2. Partial Refresh ...............................................................................................................................................................9
2.1 Standby Mode...........................................................................................................................................................9
2.2 Density Switching......................................................................................................................................................9
2.3 Standby Mode Status Transition...............................................................................................................................9
2.4 Addresses for Which Partial Refresh Is Supported ................................................................................................10
3. Page Read Operation ..................................................................................................................................................11
3.1 Features of Page Read Operation..........................................................................................................................11
3.2 Page Length ...........................................................................................................................................................11
3.3 Page-Corresponding Addresses.............................................................................................................................11
3.4 Page Start Address.................................................................................................................................................11
3.5 Page Direction ........................................................................................................................................................11
3.6 Interrupt during Page Read Operation....................................................................................................................11
3.7 When page read is not used...................................................................................................................................11
4. Mode Register Settings................................................................................................................................................12
4.1 Mode Register Setting Method ...............................................................................................................................12
4.2 Cautions for Setting Mode Register........................................................................................................................13
5. Electrical Specifications...............................................................................................................................................14
6. Timing Charts...............................................................................................................................................................19
7. Package Drawing.........................................................................................................................................................29
8. Recommended Soldering Conditions ..........................................................................................................................30
9. Revision History...........................................................................................................................................................31