W989D6KB / W989D2KB

512Mb Mobile LPSDR

Publication Release Date : October 07, 2013

- 3 -

Revision : A01-003

TABLE OF CONTENTS

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

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

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

4. PIN CONFIGURATION................................................................................................................ 5

4.1 Ball Assignment: LPSDR X 16 ......................................................................................................... 5

4.2 Ball Assignment: LPSDR X 32 ......................................................................................................... 5

5. PIN DESCRIPTION...................................................................................................................... 6

5.1 Signal Description ............................................................................................................................ 6

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

8.1.1Table 1. Truth Table (Note (1) and (2) ) .................................................................................................... 16

8.1.2 Functional Truth Table (See Note 1)........................................................................................................ 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.............................................................. 23

8.1.21 Data Write/Output Enable, Data Mask/Output Disable Command ........................................................ 23

9.OPERATION............................................................................................................................... 23

9.1 Read Operation.............................................................................................................................. 23

9.2 Write Operation.............................................................................................................................. 23

9.3 Precharge ...................................................................................................................................... 24

9.3.1 Auto Precharge ........................................................................................................................................ 24

9.3.2 READ with auto precharge interrupted by a READ (with or without auto precharge) ............................. 24

9.3.3 READ with auto precharge interrupted by a WRITE (with or without auto precharge) ............................ 25

9.3.4 WRITE with auto precharge interrupted by a READ (with or without auto precharge) ............................ 25