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W9864G2GH Datasheet Preview

W9864G2GH Datasheet

512K X 4 BANKS X 32BITS SDRAM

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W9864G2GH
512K X 4 BANKS X 32BITS SDRAM
Table of Contents-
1. GENERAL DESCRIPTION ......................................................................................................... 3
2. FEATURES ................................................................................................................................. 3
3. AVAILABLE PART NUMBER...................................................................................................... 4
4. PIN CONFIGURATION ............................................................................................................... 5
5. PIN DESCRIPTION..................................................................................................................... 6
6. BLOCK DIAGRAM ...................................................................................................................... 7
7. FUNCTIONAL DESCRIPTION.................................................................................................... 8
7.1 Power Up and Initialization ............................................................................................. 8
7.2 Programming Mode Register.......................................................................................... 8
7.3 Bank Activate Command ................................................................................................ 8
7.4 Read and Write Access Modes ...................................................................................... 8
7.5 Burst Read Command .................................................................................................... 9
7.6 Burst Command .............................................................................................................. 9
7.7 Read Interrupted by a Read ........................................................................................... 9
7.8 Read Interrupted by a Write............................................................................................ 9
7.9 Write Interrupted by a Write............................................................................................ 9
7.10 Write Interrupted by a Read............................................................................................ 9
7.11 Burst Stop Command ................................................................................................... 10
7.12 Addressing Sequence of Sequential Mode .................................................................. 10
7.13 Addressing Sequence of Interleave Mode.................................................................... 10
7.14 Auto-precharge Command ........................................................................................... 11
7.15 Precharge Command.................................................................................................... 11
7.16 Self Refresh Command ................................................................................................ 11
7.17 Power Down Mode ....................................................................................................... 12
7.18 No Operation Command............................................................................................... 12
7.19 Deselect Command ...................................................................................................... 12
7.20 Clock Suspend Mode.................................................................................................... 12
8. OPERATION MODE ................................................................................................................. 13
8.1 Simplified Stated Diagram ............................................................................................ 14
9. ELECTRICAL CHARACTERISTICS......................................................................................... 15
9.1 Absolute Maximum Ratings .......................................................................................... 15
Publication Release Date:Aug. 13, 2007
- 1 - Revision A09
Datasheet pdf - http://www.DataSheet4U.net/




Winbond

W9864G2GH Datasheet Preview

W9864G2GH Datasheet

512K X 4 BANKS X 32BITS SDRAM

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www.DataSheet.co.kr
W9864G2GH
9.2 Recommended DC Operating Conditions .................................................................... 15
9.3 Capacitance .................................................................................................................. 16
9.4 DC Characteristics ........................................................................................................ 16
9.5 AC Characteristics and Operating Condition................................................................ 17
10. TIMING WAVEFORMS ............................................................................................................. 20
10.1 Command Input Timing ................................................................................................ 20
10.2 Read Timing.................................................................................................................. 21
10.3 Control Timing of Input Data......................................................................................... 22
10.4 Control Timing of Output Data ...................................................................................... 23
10.5 Mode Register Set Cycle .............................................................................................. 24
11. OPERATING TIMING EXAMPLE ............................................................................................. 25
11.1 Interleaved Bank Read (Burst Length = 4, CAS Latency = 3)...................................... 25
11.2 Interleaved Bank Read (Burst Length = 4, CAS Latency = 3, Auto-precharge)........... 26
11.3 Interleaved Bank Read (Burst Length = 8, CAS Latency = 3)...................................... 27
11.4 Interleaved Bank Read (Burst Length = 8, CAS Latency = 3, Auto-precharge)........... 28
11.5 Interleaved Bank Write (Burst Length = 8) ................................................................... 29
11.6 Interleaved Bank Write (Burst Length = 8, Auto-precharge) ........................................ 30
11.7 Page Mode Read (Burst Length = 4, CAS Latency = 3)............................................... 31
11.8 Page Mode Read/Write (Burst Length = 8, CAS Latency = 3) ..................................... 32
11.9 Auto-precharge Read (Burst Length = 4, CAS Latency = 3) ........................................ 33
11.10 Auto-precharge Write (Burst Length = 4) .................................................................... 34
11.11 Auto Refresh Cycle ..................................................................................................... 35
11.12 Self Refresh Cycle....................................................................................................... 36
11.13 Bust Read and Single Write (Burst Length = 4, CAS Latency = 3)............................. 37
11.14 Power Down Mode ...................................................................................................... 38
11.15 Auto-precharge Timing (Write Cycle).......................................................................... 39
11.16 Auto-precharge Timing (Read Cycle).......................................................................... 40
11.17 Timing Chart of Read to Write Cycle........................................................................... 41
11.18 Timing Chart of Write to Read Cycle........................................................................... 41
11.19 Timing Chart of Burst Stop Cycle (Burst Stop Command).......................................... 42
11.20 Timing Chart of Burst Stop Cycle (Precharge Command) .......................................... 42
11.21 CKE/DQM Input Timing (Write Cycle) ......................................................................... 43
11.22 CKE/DQM Input Timing (Read Cycle)......................................................................... 44
12. PACKAGE SPECIFICATION .................................................................................................... 45
12.1 86L TSOP (II)-400 mil................................................................................................... 45
13. REVISION HISTORY ................................................................................................................ 46
Publication Release Date:Aug. 13, 2007
- 2 - Revision A09
Datasheet pdf - http://www.DataSheet4U.net/


Part Number W9864G2GH
Description 512K X 4 BANKS X 32BITS SDRAM
Maker Winbond
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