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W989D2CB Datasheet Preview

W989D2CB Datasheet

(W989D2CB / W989D6CB) 512Mb Mobile LPSDR

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www.DataSheet.co.kr
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
-1-
Publication Release Date: Sep, 22, 2011
Revision A01-005
Datasheet pdf - http://www.DataSheet4U.net/




Winbond

W989D2CB Datasheet Preview

W989D2CB Datasheet

(W989D2CB / W989D6CB) 512Mb Mobile LPSDR

No Preview Available !

www.DataSheet.co.kr
W989D6CB / W989D2CB
512Mb Mobile LPSDR
8.4 Burst Termination..............................................................................................................................26
8.5 Mode Register Operation ..................................................................................................................27
8.5.1 Burst Length field (A2~A0) ....................................................................................................................... 27
8.5.2 Addressing Mode Select (A3) .................................................................................................................. 27
8.5.3 Addressing Sequence for Sequential Mode............................................................................................. 28
8.5.4 Addressing Sequence for Interleave Mode.............................................................................................. 28
8.5.5 Addressing Sequence Example (Burst Length = 8 and Input Address is 13).......................................... 29
8.5.6 Read Cycle CAS Latency = 3................................................................................................................ 29
8.5.7 CAS Latency field (A6~A4) ................................................................................................................... 30
8.5.8 Mode Register Definition.......................................................................................................................... 30
8.6 Extended Mode Register Description................................................................................................31
8.7 Simplified State Diagram...................................................................................................................32
9. CONTROL TIMING WAVEFORMS ........................................................................................... 33
9.1 Command Input Timing.....................................................................................................................33
9.2 Read Timing......................................................................................................................................34
9.3 Control Timing of Input Data (x16) ....................................................................................................35
9.4 Control Timing of Output Data (x16) .................................................................................................36
9.5 Control Timing of Input Data (x32) ....................................................................................................37
9.6 Control Timing of Output Data (x32) .................................................................................................38
9.7 Mode register Set (MRS) Cycle ........................................................................................................39
9.8 Extended Mode register Set (EMRS) Cycle......................................................................................40
10. OPERATING TIMING EXAMPLE ............................................................................................ 41
10.1 Interleaved Bank Read (Burst Length = 4, CAS Latency = 3).......................................................41
10.2 Interleaved Bank Read (Burst Length = 4, CAS Latency = 3, Auto Precharge)............................42
10.3 Interleaved Bank Read (Burst Length = 8, CAS Latency = 3).......................................................43
10.4 Interleaved Bank Read (Burst Length = 8, CAS Latency = 3, Auto Precharge)............................44
10.5 Interleaved Bank Write (Burst Length = 8) ......................................................................................45
10.6 Interleaved Bank Write (Burst Length = 8, Auto Precharge) ...........................................................46
10.7 Page Mode Read (Burst Length = 4, CAS Latency = 3) ...............................................................47
10.8 Page Mode Read / Write (Burst Length = 8, CAS Latency = 3)....................................................48
10.9 Auto Precharge Read (Burst Length = 4, CAS Latency = 3).........................................................49
10.10 Auto Precharge Write (Burst Length = 4) ......................................................................................50
10.11 Auto Refresh Cycle .......................................................................................................................51
10.12 Self Refresh Cycle ........................................................................................................................52
10.13 Power Down Mode........................................................................................................................53
10.14 Burst Read and Single Write (Burst Length = 4, CAS Latency = 3)............................................54
10.15 Deep Power Down Mode Entry.....................................................................................................55
10.16 Deep Power Down Mode Exit .......................................................................................................56
10.17 Auto Precharge Timing (Read Cycle) ...........................................................................................57
10.18 Auto Precharge Timing (Write Cycle)............................................................................................58
10.19 Timing Chart of Read to Write Cycle.............................................................................................59
10.20 Timing Chart for Write to Read Cycle ...........................................................................................59
10.21 Timing Chart for Burst Stop Cycle (Burst Stop Command)...........................................................60
10.22 Timing Chart for Burst Stop Cycle (Precharge Command) ...........................................................60
10.23 CKE/DQM Input Timing (Write Cycle)...........................................................................................61
10.24 CKE/DQM Input Timing (Read Cycle)...........................................................................................62
11. PACKAGE DIMENSION.......................................................................................................... 63
11.1 : LPSDR X 16..................................................................................................................................63
11.2 : LPSDR X 32..................................................................................................................................64
12.ORDERING INFORMATION .................................................................................................... 65
13. REVISION HISTORY ............................................................................................................... 66
-2-
Publication Release Date: Sep, 22, 2011
Revision A01-005
Datasheet pdf - http://www.DataSheet4U.net/


Part Number W989D2CB
Description (W989D2CB / W989D6CB) 512Mb Mobile LPSDR
Maker Winbond
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