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Overview of Digital Logic Technologies and Architectures in FPLDs and CPLDs

This document provides a comprehensive overview of digital logic technologies, focusing on their tradeoffs, examples of Field Programmable Logic Devices (FPLDs), and advanced package types. It includes detailed insights into the architecture of the MAX 7000 CPLD and FLEX 10K series, highlighting components such as macrocells, logic elements, and lookup tables for gate modeling. Additionally, it presents images of FPLD die and silicon wafers containing gate FPGAs, alongside a CAD tool design flow for effective hardware description and implementation.

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Overview of Digital Logic Technologies and Architectures in FPLDs and CPLDs

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  1. Figure 3.1 Digital logic technologies.

  2. Figure 3.2 Digital logic technology tradeoffs.

  3. Figure 3.3 Examples of FPLDs and advanced high pin count package types.

  4. Figure 3.4 MAX 7000 macrocell.

  5. Figure 3.5 MAX 7000 CPLD architecture.

  6. Figure 3.6 FLEX 10K100 FPLD die photo, PIA interconnects are visible.

  7. Figure 3.7 FLEX 10K Logic Element (LE).

  8. Figure 3.8 Using a lookup table (LUT) to model a gate network.

  9. Figure 3.9 FLEX 10K Logic Array Block (LAB).

  10. Figure 3.10 FLEX 10K CPLD architecture.

  11. Figure 3.11 Silicon wafer containing XC4010E 10,000 gate FPGAs.

  12. Figure 3.12 Single XC4010E FPGA die showing 20 by 20 array of logic elements and interconnect.

  13. Figure 3.13 Xilinx 4000 Family Configurable Logic Block (CLB).

  14. Figure 3.14 CAD tool design flow for FPLDs.

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