參數(shù)資料
      型號(hào): A54SX16P-1VQ208M
      廠(chǎng)商: Electronic Theatre Controls, Inc.
      元件分類(lèi): FPGA
      英文描述: 54SX Family FPGAs
      中文描述: 54SX家庭的FPGA
      文件頁(yè)數(shù): 24/57頁(yè)
      文件大?。?/td> 415K
      代理商: A54SX16P-1VQ208M
      5 4 S X F a m ily F P G A s
      24
      v3.1
      T im ing C ha ra c t e ris t ic s
      Timing characteristics for 54SX devices fall into three
      categories:
      family-dependent, device-dependent,
      design-dependent.
      The
      input
      characteristics are common to all 54SX family members.
      Internal routing delays are device dependent. Design
      dependency means actual delays are not determined until
      after placement and routing of the user’s design is complete.
      Delay values may then be determined by using the
      DirectTime Analyzer utility or performing simulation with
      post-layout delays.
      and
      and
      output
      buffer
      C rit ic a l N e t s a nd T y pic a l N e t s
      Propagation delays are expressed only for typical nets,
      which are used for initial design performance evaluation.
      Critical net delays can then be applied to the most
      time-critical paths. Critical nets are determined by net
      property assignment prior to placement and routing. Up to
      6%of the nets in a design may be designated as critical,
      while 90%of the nets in a design are typical.
      L ong T ra c k s
      Some nets in the design use long tracks. Long tracks are
      special routing resources that span multiple rows, columns,
      or modules. Long tracks employ three and sometimes five
      antifuse connections. This increases capacitance and
      resistance, resulting in longer net delays for macros
      connected to long tracks. Typically up to 6%of nets in a fully
      utilized device require long tracks. Long tracks contribute
      approximately 4 ns to 8.4 ns delay. This additional delay is
      represented statistically in higher fanout (FO=24) routing
      delays in the data sheet specifications section.
      T im ing De ra t ing
      54SX devices are manufactured in a CMOS process.
      Therefore, device performance varies according to
      temperature, voltage, and process variations. Minimum
      timing parameters reflect maximum operating voltage,
      minimum operating temperature, and best-case processing.
      Maximum timing parameters reflect minimum operating
      voltage, maximum operating temperature, and worst-case
      processing.
      T e m pe ra t ure a nd V olt a g e De ra t ing F a c t ors
      (Norma lize d to Wors t-C a s e C omme rc ia l, T
      J
      = 70
      °
      C , V
      C C A
      = 3.0V )
      R e g is t e r C e ll T im ing C ha ra c t e ris t ic s
      F lip-F lops
      (Positive edge triggered)
      D
      CLK
      CLR
      Q
      D
      CLK
      Q
      CLR
      t
      HPWH
      ,
      t
      RPWH
      t
      WASYN
      t
      HD
      t
      SUD
      t
      HP
      t
      HPWL
      ,
      t
      RPWL
      t
      RCO
      t
      CLR
      PRESET
      t
      PRESET
      PRESET
      V
      CCA
      3.0
      3.3
      3.6
      Junction Temperature (T
      J
      )
      25
      –55
      –40
      0
      70
      85
      125
      0.75
      0.70
      0.66
      0.78
      0.73
      0.69
      0.87
      0.82
      0.77
      0.89
      0.83
      0.78
      1.00
      0.93
      0.87
      1.04
      0.97
      0.92
      1.16
      1.08
      1.02
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