72-Mbit DDR II SRAM 2-WordBurst ArchitectureCY7C1516KV18, CY7C1527KV18CY7C1518KV18, CY7C1520KV18Cypress Semiconductor Corporation • 198 Champion Court
CY7C1516KV18, CY7C1527KV18CY7C1518KV18, CY7C1520KV18Document Number: 001-00437 Rev. *J Page 10 of 33Programmable ImpedanceAn external resistor, RQ, mu
CY7C1516KV18, CY7C1527KV18CY7C1518KV18, CY7C1520KV18Document Number: 001-00437 Rev. *J Page 11 of 33Truth TableThe truth table for the CY7C1516KV18, C
CY7C1516KV18, CY7C1527KV18CY7C1518KV18, CY7C1520KV18Document Number: 001-00437 Rev. *J Page 12 of 33Write Cycle DescriptionsThe write cycle descriptio
CY7C1516KV18, CY7C1527KV18CY7C1518KV18, CY7C1520KV18Document Number: 001-00437 Rev. *J Page 13 of 33IEEE 1149.1 Serial Boundary Scan (JTAG)These SRAMs
CY7C1516KV18, CY7C1527KV18CY7C1518KV18, CY7C1520KV18Document Number: 001-00437 Rev. *J Page 14 of 33IDCODEThe IDCODE instruction loads a vendor-specif
CY7C1516KV18, CY7C1527KV18CY7C1518KV18, CY7C1520KV18Document Number: 001-00437 Rev. *J Page 15 of 33TAP Controller State DiagramThe state diagram for
CY7C1516KV18, CY7C1527KV18CY7C1518KV18, CY7C1520KV18Document Number: 001-00437 Rev. *J Page 16 of 33TAP Controller Block DiagramTAP Electrical Charact
CY7C1516KV18, CY7C1527KV18CY7C1518KV18, CY7C1520KV18Document Number: 001-00437 Rev. *J Page 17 of 33TAP AC Switching Characteristics Over the Operatin
CY7C1516KV18, CY7C1527KV18CY7C1518KV18, CY7C1520KV18Document Number: 001-00437 Rev. *J Page 18 of 33Identification Register Definitions Instruction Fi
CY7C1516KV18, CY7C1527KV18CY7C1518KV18, CY7C1520KV18Document Number: 001-00437 Rev. *J Page 19 of 33Boundary Scan Order Bit # Bump ID Bit # Bump ID Bi
CY7C1516KV18, CY7C1527KV18CY7C1518KV18, CY7C1520KV18Document Number: 001-00437 Rev. *J Page 2 of 33Logic Block Diagram (CY7C1516KV18)Logic Block Diagr
CY7C1516KV18, CY7C1527KV18CY7C1518KV18, CY7C1520KV18Document Number: 001-00437 Rev. *J Page 20 of 33Power Up Sequence in DDR II SRAMDDR II SRAMs must
CY7C1516KV18, CY7C1527KV18CY7C1518KV18, CY7C1520KV18Document Number: 001-00437 Rev. *J Page 21 of 33Maximum RatingsExceeding maximum ratings may impai
CY7C1516KV18, CY7C1527KV18CY7C1518KV18, CY7C1520KV18Document Number: 001-00437 Rev. *J Page 22 of 33IDD[19]VDD operating supply VDD = Max,IOUT = 0 mA,
CY7C1516KV18, CY7C1527KV18CY7C1518KV18, CY7C1520KV18Document Number: 001-00437 Rev. *J Page 23 of 33ISB1Automatic power down currentMax VDD, Both Port
CY7C1516KV18, CY7C1527KV18CY7C1518KV18, CY7C1520KV18Document Number: 001-00437 Rev. *J Page 24 of 33CapacitanceTested initially and after any design o
CY7C1516KV18, CY7C1527KV18CY7C1518KV18, CY7C1520KV18Document Number: 001-00437 Rev. *J Page 25 of 33Switching Characteristics Over the Operating Range
CY7C1516KV18, CY7C1527KV18CY7C1518KV18, CY7C1520KV18Document Number: 001-00437 Rev. *J Page 26 of 33Output TimestCOtCHQVC/C clock rise (or K/K in sing
CY7C1516KV18, CY7C1527KV18CY7C1518KV18, CY7C1520KV18Document Number: 001-00437 Rev. *J Page 27 of 33Switching WaveformsFigure 5. Read/Write/Deselect
CY7C1516KV18, CY7C1527KV18CY7C1518KV18, CY7C1520KV18Document Number: 001-00437 Rev. *J Page 28 of 33Ordering Information The following table contains
CY7C1516KV18, CY7C1527KV18CY7C1518KV18, CY7C1520KV18Document Number: 001-00437 Rev. *J Page 29 of 33Ordering Code DefinitionTemperature Range: X = C o
CY7C1516KV18, CY7C1527KV18CY7C1518KV18, CY7C1520KV18Document Number: 001-00437 Rev. *J Page 3 of 33Logic Block Diagram (CY7C1518KV18)Logic Block Diagr
CY7C1516KV18, CY7C1527KV18CY7C1518KV18, CY7C1520KV18Document Number: 001-00437 Rev. *J Page 30 of 33Package DiagramFigure 6. 165-Ball FBGA (13 x 15 x
CY7C1516KV18, CY7C1527KV18CY7C1518KV18, CY7C1520KV18Document Number: 001-00437 Rev. *J Page 31 of 33Acronyms Document ConventionsUnits of MeasureAcron
CY7C1516KV18, CY7C1527KV18CY7C1518KV18, CY7C1520KV18Document Number: 001-00437 Rev. *J Page 32 of 33Document History PageDocument Title: CY7C1516KV18/
Document Number: 001-00437 Rev. *J Revised April 10, 2011 Page 33 of 33QDR RAMs and Quad Data Rate RAMs comprise a new family of products developed by
CY7C1516KV18, CY7C1527KV18CY7C1518KV18, CY7C1520KV18Document Number: 001-00437 Rev. *J Page 4 of 33ContentsPin Configuration ...
CY7C1516KV18, CY7C1527KV18CY7C1518KV18, CY7C1520KV18Document Number: 001-00437 Rev. *J Page 5 of 33Pin Configuration The pin configurations for CY7C15
CY7C1516KV18, CY7C1527KV18CY7C1518KV18, CY7C1520KV18Document Number: 001-00437 Rev. *J Page 6 of 33CY7C1518KV18 (4M x 18)1 2 3 4 5 6 7 8 9 10 11A CQ A
CY7C1516KV18, CY7C1527KV18CY7C1518KV18, CY7C1520KV18Document Number: 001-00437 Rev. *J Page 7 of 33Pin Definitions Pin Name I/O Pin DescriptionDQ[x:0]
CY7C1516KV18, CY7C1527KV18CY7C1518KV18, CY7C1520KV18Document Number: 001-00437 Rev. *J Page 8 of 33CQ Output Clock CQ referenced with respect to C. Th
CY7C1516KV18, CY7C1527KV18CY7C1518KV18, CY7C1520KV18Document Number: 001-00437 Rev. *J Page 9 of 33Functional OverviewThe CY7C1516KV18, CY7C1527KV18,
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