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W987D6HBGX7I Datasheet(PDF) 1 Page - Winbond |
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1 / 68 page W987D6HB / W987D2HB 128Mb Mobile LPSDR Publication Release Date: Jun. 09, 2011 - 1 - Revision A01-002 TABLE OF CONTENTS 1. GENERAL DESCRIPTION ............................................................................................................. 4 2. FEATURES..................................................................................................................................... 4 3. PIN CONFIGURATION................................................................................................................... 5 3.1 Ball Assignment: LPSDR X 16 ............................................................................................................ 5 3.2 Ball Assignment: LPSDR X 32 ............................................................................................................ 5 4. PIN DESCRIPTION......................................................................................................................... 6 4.1 Signal Description ............................................................................................................................... 6 4.2 Addressing Table ................................................................................................................................ 6 5. BLOCK DIAGRAM ......................................................................................................................... 7 6. ELECTRICAL CHARACTERISTICS .............................................................................................. 8 6.1 Absolute Maximum Ratings................................................................................................................. 8 6.2 Operating Conditions .......................................................................................................................... 8 6.3 Capacitance ........................................................................................................................................ 8 6.4 DC Characteristics .............................................................................................................................. 9 6.5 Automatic Temperature Compensated Self Refresh Current Feature................................................ 11 6.6 AC Characteristics And AC Operating Conditions ............................................................................. 12 6.6.1 AC Characteristics....................................................................................................................................... 12 6.6.2 AC Test Condition ....................................................................................................................................... 13 6.6.3 AC Latency Characteristics ......................................................................................................................... 14 7. FUNCTION DESCRIPTION .......................................................................................................... 15 7.1 Command Function........................................................................................................................... 15 7.1.1Table 1. Truth Table ..................................................................................................................................... 15 7.1.2 Functional Truth Table ................................................................................................................................ 16 7.1.3 Function Truth Table for CKE ..................................................................................................................... 19 7.1.4 Bank Activate Command............................................................................................................................. 20 7.1.5 Bank Precharge Command ......................................................................................................................... 20 7.1.6 Precharge All Command ............................................................................................................................. 20 7.1.7 Write Command .......................................................................................................................................... 20 7.1.8 Write with Auto Precharge Command......................................................................................................... 20 7.1.9 Read Command .......................................................................................................................................... 20 7.1.10 Read with Auto Precharge Command ...................................................................................................... 20 7.1.11 Extended Mode Register Set Command .................................................................................................. 20 7.1.12 Mode Register Set Command................................................................................................................... 21 7.1.13 No-Operation Command ........................................................................................................................... 21 7.1.14 Burst Stop Command ................................................................................................................................ 21 7.1.15 Device Deselect Command....................................................................................................................... 21 7.1.16 Auto Refresh Command............................................................................................................................ 21 7.1.17 Self Refresh Entry Command ................................................................................................................... 21 7.1.18 Self Refresh Exit Command ...................................................................................................................... 21 7.1.19 Clock Suspend Mode Entry/Power Down Mode Entry Command ............................................................ 21 7.1.20 Clock Suspend Mode Exit/Power Down Mode Exit Command................................................................. 21 |
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