W989D6CB Datasheet, PDF (1/67 Pages) Winbond – 512Mb Mobile LPSDR

W989D6CB / W989D2CB
512Mb Mobile LPSDR
TABLE OF CONTENTS
1. GENERAL DESCRIPTION .......................................................................................................... 3
2. FEATURES.................................................................................................................................. 3
3. PIN CONFIGURATION ................................................................................................................ 4
3.1 Ball Assignment: LPSDR X 16 ............................................................................................................ 4
3.2 Ball Assignment: LPSDR X 32 ............................................................................................................ 4
4. PIN DESCRIPTION...................................................................................................................... 5
4.1 Signal Description ............................................................................................................................... 5
4.2 Addressing Table ................................................................................................................................ 5
5. BLOCK DIAGRAM ...................................................................................................................... 6
6. ELECTRICAL CHARACTERISTICS ........................................................................................... 7
6.1 Absolute Maximum Ratings ................................................................................................................ 7
6.2 Operating Conditions .......................................................................................................................... 7
6.3 Capacitance ........................................................................................................................................ 7
6.4 DC Characteristics .............................................................................................................................. 8
6.5 Automatic Temperature Compensated Self Refresh Current Feature .............................................. 10
6.6 AC Characteristics And AC Operating Conditions ............................................................................ 11
6.6.1 AC Characteristics.................................................................................................................................... 11
6.6.2 AC Test Condition .................................................................................................................................... 12
6.6.3 AC Latency Characteristics ...................................................................................................................... 13
7. FUNCTION DESCRIPTION ....................................................................................................... 14
7.1 Command Function...........................................................................................................................14
7.1.1Table 1. Truth Table .................................................................................................................................. 14
7.1.2 Functional Truth Table ............................................................................................................................. 15
7.1.3 Function Truth Table for CKE .................................................................................................................. 18
7.1.4 Bank Activate Command.......................................................................................................................... 19
7.1.5 Bank Precharge Command ...................................................................................................................... 19
7.1.6 Precharge All Command .......................................................................................................................... 19
7.1.7 Write Command ....................................................................................................................................... 19
7.1.8 Write with Auto Precharge Command...................................................................................................... 19
7.1.9 Read Command ....................................................................................................................................... 19
7.1.10 Read with Auto Precharge Command.................................................................................................... 19
7.1.11 Extended Mode Register Set Command ............................................................................................... 19
7.1.12 Mode Register Set Command ................................................................................................................ 20
7.1.13 No-Operation Command ........................................................................................................................ 20
7.1.14 Burst Stop Command ............................................................................................................................. 20
7.1.15 Device Deselect Command.................................................................................................................... 20
7.1.16 Auto Refresh Command......................................................................................................................... 20
7.1.17 Self Refresh Entry Command ................................................................................................................ 20
7.1.18 Self Refresh Exit Command ................................................................................................................... 20
7.1.19 Clock Suspend Mode Entry/Power Down Mode Entry Command ......................................................... 20
7.1.20 Clock Suspend Mode Exit / Power Down Mode Exit Command............................................................ 20
7.1.21 Data Write/Output Enable, Data Mask/Output Disable Command ........................................................ 21
8.OPERATION............................................................................................................................... 21
8.1 Read Operation.................................................................................................................................21
8.2 Write Operation ................................................................................................................................. 21
8.3 Precharge ......................................................................................................................................... 22
8.3.1 Auto Precharge ........................................................................................................................................ 22
8.3.2 READ with auto precharge interrupted by a READ (with or without auto precharge) ............................. 22
8.3.3 READ with auto precharge interrupted by a WRITE (with or without auto precharge) ............................ 23
8.3.4 WRITE with auto precharge interrupted by a READ (with or without auto precharge) ............................ 24
8.3.5 WRITE with auto precharge interrupted by a WRITE (with or without auto precharge) .......................... 25
Publication Release Date: Sep, 22, 2011
-1-
Revision A01-005