PDF W988D2FB Data sheet ( Hoja de datos )

Número de pieza	W988D2FB
Descripción	(W988D2FB / W988D6FB) 256Mb Mobile LPSDR
Fabricantes	Winbond
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No Preview Available ! www.DataSheet.co.kr W988D6FB / W988D2FB 256Mb Mobile LPSDR 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 -1- Publication Release Date : May, 18, 2011 Revision A01-002 Datasheet pdf - http://www.DataSheet4U.net/ 1 page www.DataSheet.co.kr W988D6FB / W988D2FB 3. PIN CONFIGURATION 3.1 Ball Assignment: LPSDR X 16 1 A VSS B DQ14 C DQ12 D DQ10 E DQ8 F UDQM G A12 H A8 J VSS 2 DQ15 DQ13 DQ11 DQ9 NC CLK A11 A7 A5 3.2 Ball Assignment: LPSDR X 32 1 A DQ26 B DQ28 C VSSQ D VSSQ E VDDQ F VSS G A4 H A7 J CLK K DQM1 L VDDQ M VSSQ N VSSQ P DQ11 R DQ13 2 DQ24 VDDQ DQ27 DQ29 DQ31 DQM3 A5 A8 CKE NC DQ8 DQ10 DQ12 VDDQ DQ15 54Ball FBGA 3 456 VSSQ VDDQ VSSQ VDDQ VSS CKE A9 A6 A4 (Top View) 7 VDDQ VSSQ VDDQ VSSQ VDD CAS BA0 A0 A3 90Ball FBGA 3 456 VSS VSSQ DQ25 DQ30 NC A3 A6 NC A9 NC VSS DQ9 DQ14 VSSQ VSS (Top View) 7 VDD VDDQ DQ22 DQ17 NC A2 A10 NC BA0 CAS VDD DQ6 DQ1 VDDQ VDD 256Mb Mobile LPSDR 8 DQ0 DQ2 DQ4 DQ6 LDQM RAS BA1 A1 A2 9 VDD DQ1 DQ3 DQ5 DQ7 WE CS A10 VDD 8 DQ23 VSSQ DQ20 DQ18 DQ16 DQM2 A0 BA1 CS WE DQ7 DQ5 DQ3 VSSQ DQ0 9 DQ21 DQ19 VDDQ VDDQ VSSQ VDD A1 A11 RAS DQM0 VSSQ VDDQ VDDQ DQ4 DQ2 -5- Publication Release Date : May, 18, 2011 Revision A01-002 Datasheet pdf - http://www.DataSheet4U.net/ 5 Page www.DataSheet.co.kr W988D6FB / W988D2FB 6.5 Automatic Temperature Compensated Self Refresh Current Feature 256Mb Mobile LPSDR IDD6 Low Power Normal Power Units TCSR Range 45℃ 85℃ 45℃ 85℃ Full Array 1/2 Array 200 300 250 400 uA 170 250 200 300 1/4 Array 150 220 180 250 Note: 1. A full initialization sequence is required before proper device operation is ensured. 2. Measurement is taken 500ms after entering into this operating mode to provide tester measuring unit settling time. 3. Enables on-die refresh and address counters. 4. Values for Idd6 85°C full array and partial array are guaranteed for the entire temperature range. 5. IDD6 is typical value. - 11 - Publication Release Date : May, 18, 2011 Revision A01-002 Datasheet pdf - http://www.DataSheet4U.net/ 11 Page

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