W988D6FB / W988D2FB

256Mb Mobile LPSDR

Publication Release Date : August 15, 2013

- 3 -

Revision A01-004

TABLE OF CONTENTS

1. GENERAL DESCRIPTION .......................................................................................................... 1

2. FEATURES.................................................................................................................................. 1

3. ORDERING INFORMATION ....................................................................................................... 2

4. PIN CONFIGURATION................................................................................................................ 6

4.1 Ball Assignment: LPSDR X 16 ............................................................................................................6

4.2 Ball Assignment: LPSDR X 32 ............................................................................................................6

5. PIN DESCRIPTION...................................................................................................................... 7

5.1 Signal Description ...............................................................................................................................7

5.2 Addressing Table ................................................................................................................................7

6. BLOCK DIAGRAM ...................................................................................................................... 8

7. ELECTRICAL CHARACTERISTICS ........................................................................................... 9

7.1 Absolute Maximum Ratings ................................................................................................................9

7.2 Operating Conditions ..........................................................................................................................9

7.3 Capacitance ........................................................................................................................................9

7.4 DC Characteristics ............................................................................................................................10

7.5 Automatic Temperature Compensated Self Refresh Current Feature ..............................................12

7.6 AC Characteristics And AC Operating Conditions ............................................................................13

7.6.1 AC Characteristics.................................................................................................................................... 13

7.6.2 AC Test Condition .................................................................................................................................... 14

7.6.3 AC Latency Characteristics...................................................................................................................... 15

8. FUNCTION DESCRIPTION ....................................................................................................... 16

8.1 Command Function...........................................................................................................................16

8.1.1 Truth Table ............................................................................................................................................... 16

8.1.2 Functional Truth Table ............................................................................................................................. 17

8.1.3 Function Truth Table for CKE .................................................................................................................. 20

8.1.4 Bank Activate Command.......................................................................................................................... 21

8.1.5 Bank Precharge Command...................................................................................................................... 21

8.1.6 Precharge All Command .......................................................................................................................... 21

8.1.7 Write Command ....................................................................................................................................... 21

8.1.8 Write with Auto Precharge Command...................................................................................................... 21

8.1.9 Read Command ....................................................................................................................................... 21

8.1.10 Read with Auto Precharge Command.................................................................................................... 21

8.1.11 Extended Mode Register Set Command ............................................................................................... 21

8.1.12 Mode Register Set Command................................................................................................................ 22

8.1.13 No-Operation Command ........................................................................................................................ 22

8.1.14 Burst Stop Command ............................................................................................................................. 22

8.1.15 Device Deselect Command.................................................................................................................... 22

8.1.16 Auto Refresh Command......................................................................................................................... 22

8.1.17 Self Refresh Entry Command ................................................................................................................ 22

8.1.18 Self Refresh Exit Command................................................................................................................... 22

8.1.19 Clock Suspend Mode Entry/Power Down Mode Entry Command......................................................... 22

8.1.20 Clock Suspend Mode Exit/Power Down Mode Exit Command.............................................................. 22