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EMC646SP16KY-45LL Datasheet(PDF) 3 Page - Emerging Memory & Logic Solutions Inc |
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EMC646SP16KY-45LL Datasheet(HTML) 3 Page - Emerging Memory & Logic Solutions Inc |
3 / 52 page EMC646SP16K 4Mx16 CellularRAM AD-MUX 3 Preliminary Table of Contents Features.............................................................................................................................................................................................. 2 Options........................................................................................................................................................................................... 2 General Description............................................................................................................................................................................ 6 Functional Description........................................................................................................................................................................ 9 Power-Up Initialization.................................................................................................................................................................... 9 Bus Operating Modes......................................................................................................................................................................... 10 Asynchronous Mode....................................................................................................................................................................... 10 Burst Mode Operation.................................................................................................................................................................... 12 Mixed-Mode Operation .................................................................................................................................................................. 15 WAIT Operation ............................................................................................................................................................................. 15 LB# / UB# Operation...................................................................................................................................................................... 15 Low-Power Operation......... ............................................................................................................................................................... 16 Standby Mode Operation ............................................................................................................................................................... 16 Temperature Compensated Refresh.............................................................................................................................................. 16 Partial Array Refresh ..................................................................................................................................................................... 16 Registers............................................................................................................................................................................................. 17 Access Using CRE ........................................................................................................................................................................ 17 Software Access ............................................................................................................................................................................ 21 Bus Configuration Register............................................................................................................................................................. 23 Burst Length (BCR[2:0]) Default = Continuous Burst ................................................................................................................ 24 Burst Wrap (BCR[3]) Default = No Wrap ................................................................................................................................... 24 Drive Strength (BCR[5:4]) Default = Outputs Use Half-Drive Strength ...................................................................................... 25 WAIT Polarity (BCR[10]) Default = WAIT Active HIGH.............................................................................................................. 26 Initial Access Latency (BCR[14]) Default = Variable.................................................................................................................. 26 Operating Mode (BCR[15]) Default = Asynchronous Operation................................................................................................ 28 Refresh Configuration Register...................................................................................................................................................... 28 Device Identification Register......................................................................................................................................................... 29 Electrical Characteristics.................................................................................................................................................................... 30 Timing Requirements.......................................................................................................................................................................... 32 Timing Diagrams................................................................................................................................................................................. 36 |
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