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      參數(shù)資料
      型號(hào): EP1K50FC484-1
      廠商: Altera
      文件頁(yè)數(shù): 4/86頁(yè)
      文件大?。?/td> 0K
      描述: IC ACEX 1K FPGA 50K 484-FBGA
      產(chǎn)品培訓(xùn)模塊: Three Reasons to Use FPGA's in Industrial Designs
      標(biāo)準(zhǔn)包裝: 60
      系列: ACEX-1K®
      LAB/CLB數(shù): 360
      邏輯元件/單元數(shù): 2880
      RAM 位總計(jì): 40960
      輸入/輸出數(shù): 249
      門(mén)數(shù): 199000
      電源電壓: 2.375 V ~ 2.625 V
      安裝類型: 表面貼裝
      工作溫度: 0°C ~ 70°C
      封裝/外殼: 484-BGA
      供應(yīng)商設(shè)備封裝: 484-FBGA(23x23)
      其它名稱: 544-1069
      12
      Altera Corporation
      ACEX 1K Programmable Logic Device Family Data Sheet
      EABs can be used to implement synchronous RAM, which is easier to use
      than asynchronous RAM. A circuit using asynchronous RAM must
      generate the RAM write enable signal, while ensuring that its data and
      address signals meet setup and hold time specifications relative to the
      write enable signal. In contrast, the EAB’s synchronous RAM generates its
      own write enable signal and is self-timed with respect to the input or write
      clock. A circuit using the EAB’s self-timed RAM must only meet the setup
      and hold time specifications of the global clock.
      When used as RAM, each EAB can be configured in any of the following
      sizes: 256
      × 16; 512 × 8; 1,024 × 4; or 2,048 × 2. Figure 5 shows the ACEX 1K
      EAB memory configurations.
      Figure 5. ACEX 1K EAB Memory Configurations
      Larger blocks of RAM are created by combining multiple EABs. For
      example, two 256
      × 16 RAM blocks can be combined to form a 256 × 32
      block, and two 512
      × 8 RAM blocks can be combined to form a
      512
      × 16 block. Figure 6 shows examples of multiple EAB combination.
      Figure 6. Examples of Combining ACEX 1K EABs
      256
      × 16
      512
      × 8
      1,024
      × 4
      2,048
      × 2
      512
      × 8
      512
      × 8
      256
      × 16
      256
      × 16
      256
      × 32
      512
      × 16
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