A Complex Programmable Logic Device (CPLD) is a combination of a fully programmable AND/OR array and a bank of macrocells. The AND/OR array is reprogrammable and can perform a multitude of logic functions. Macrocells are functional blocks that perform combinatorial or sequential logic, and also have the added flexibility for true or complement, along with varied feedback paths.
Traditionally, CPLDs have used analog sense amplifiers to boost the performance of their architectures. This performance boost came at the cost of very high current requirements. CoolRunner™-II CPLDs, created by Xilinx, use an innovative all-digital core to achieve the same levels of performance at ultra-low power requirements. This allows designers to use the same CPLD architecture for both high-performance and low-power designs.
The removal of analog sense amplifiers also makes the architecture scalable, allowing for aggressive cost reduction and feature enhancement with each successive process generation.
CPLDs perform a variety of useful functions in systems design due to their unique capabilities and as the market leader in programmable logic solutions, Xilinx provides a total solution to a designer's CPLD needs.
Whether you need low-power, high-performance or a combination of the two, Xilinx has a CPLD solution to fit your design challenge. Plus, you can take the next step and purchase CPLD devices or development kits from the online store.
|I/O Tolerance||1.5V, 1.8V, 2.5V, 3.3V||5.0V (XL), 3.3V, 2.5V|
|TPD / ƒ max (fastest)||3.8/323||5/222|
|Ultra Low Standby Power||28.8µW*||Low power mode|
|I/O Standards||LVTTL, LVCMOS, HSTL, SSTL||LVTTL, LVCMOS|
*Lowest system power consumption can be achieved with the CoolRunner-II advanced feature DataGATE.
Understanding the features and benefits of using CPLDs can help enable ease of design, lower development costs, and speed products to market.
In choosing the CPLD that is right for a design, you need to make the following determinations (the priority of each will vary according to your design):
After selecting a CPLD device and downloading the necessary software, implementing the design is next. Implementation includes:
There are several ways to purchase Xilinx solutions:
The design environment and supporting resources are a critical components of the CPLD design environment, as they allow for completing your design quickly and accurately. Xilinx offers the industry's most comprehensive solution, consisting of:
|Boards and Kits||Xilinx development kits provide out-of-the box design solutions that help evaluate and architect your design.|
|Documentation||Hundreds of application notes, data sheets and reference designs are available to provide you with the technical support you need to start your design.|
|Intellectual Property||Xilinx and its partners offer hundreds of free and for-purchase intellectual property (IP), verified and guaranteed to meet timing parameters, thus speeding up your design cycle and allowing you to focus on the value add components of the design instead of standards conformance.|
|Software and Design Tools||An integrated suite of software tools provide a seamless start-to-end design flow from design entry to configuration (programming the CPLD). To implement basic CPLD designs, download our free ISE WebPACK Software tool.|
|Training||Xilinx hands-on training programs provide you the foundational knowledge necessary to begin designing right away.|