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Complex Programmable Logic Devices (CPLD)

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About Complex Programmable Logic Devices (CPLD)

Complex programmable logic devices (CPLDs) are integrated circuits (ICs) or chips that application designers configure to implement digital hardware such as mobile phones. CPLDs can handle significantly larger designs than simple programmable logic devices (SPLDs), but provide less logic than field programmable gate arrays (FPGAs). CPLDs contain several logic blocks, each of which includes eight to 16 macrocells. Because each logic block performs a specific function, all of the macrocells within a logic block are fully connected. Depending upon the application, however, logic blocks may or may not be connected to one another. 

Most complex programmable logic devices contain macrocells with a sum-of-product combinatorial logic function and an optional flip-flop. Depending on the CPLD, the combinatorial logic function supports from four to sixteen product terms with wide fan-in. Complex programmable logic devices also vary in terms of logic gates and shift registers. For this reason, CPLDs with a large number of logic gates may be used in place of FPGAs. Another CPLD specification denotes the number of product terms that a macrocell can manage. Product terms are the product of digital signals that perform a specific logic function.

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Products & Services Related to Complex Programmable Logic Devices (CPLD)

Field-programmable Gate Arrays (FPGA)
Field-programmable gate arrays (FPGAs) have a different architecture than SPLDs and CPLDs, and typically offer higher capacities. FPGAs are also known as logic cell arrays (LCA) and programmable ASIC (pASIC).
Programmable Logic Devices (PLD)
Programmable logic devices (PLD) are designed with configurable logic and flip-flops linked together with programmable interconnect. PLDs provide specific functions, including device-to-device interfacing, data communication, signal processing, data display, timing and control operations, and almost every other function a system must perform.

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Engineering Web: Complex Programmable Logic Devices CPLD

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Programmable Logic Design Quick Start Handbook
{ } lowpwr ={on|off} must choose one or more iv www.xilinx.com Programmable Logic Design June 12, 2006 R Navigating This Book Convention Meaning or
See Xilinx, Inc. Information
Xilinx WP202 THe Advantages of Migrating from Discrete 7400...
Discrete logic devices, long considered the workhorses of the semiconductor industry, held a unit cost advantage over programmable logic devices for
See Xilinx, Inc. Information
Atmel Products - Programmable Logic - SPLD/CPLD
Atmel's EPLD product line comprises of two major categories: Simple and the higher density Complex Programmable Logic Devices (SPLDs and CPLDs).
See Atmel Corporation Profile & Catalog
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Part Numbers for Complex Programmable Logic Devices CPLD

Part # Distributor Manufacturer Product Category Description
M5-128-120-7YC Amazon American Microsemiconductor BISS M5-128-120-7YC
XCR3064XL-10VQ100C Digi-Key Xilinx Inc Integrated Circuits (ICs) IC CR CPLD 1.5K 64MCELL 100-VQFP
XCR3128XL-10VQ100C Digi-Key Xilinx Inc Integrated Circuits (ICs) IC CR CPLD 3K 128MCELL 100-VQFP
XC2C384-10PQG208C Digi-Key Xilinx Inc Integrated Circuits (ICs) IC CRII CPLD 384MCRCELL 208PQFP
XC2C512-10FGG324C Digi-Key Xilinx Inc Integrated Circuits (ICs) IC CRII CPLD 512MCRCELL 324BGA

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