CPLDs

E46529

digital integrated circuit programmable logic device

CPLDs (Complex Programmable Logic Devices) are reconfigurable digital integrated circuits used to implement custom logic functions in hardware, often for control, glue logic, and interface applications.

Aliases (2)

CPLD ×64
Complex Programmable Logic Device ×1

Statements (63)

Predicate	Object
instanceOf	digital integrated circuit → programmable logic device →
canImplement	counters → encoders and decoders → multiplexers and demultiplexers → simple communication protocols → timers →
comparedTo	FPGA →
configurationStorageTechnology	EEPROM → Flash → SRAM with external non-volatile memory in some designs →
configuredBy	JEDEC programming files → VHDL → Verilog → hardware description languages → vendor-specific schematic entry tools →
developedFrom	GAL devices → PAL devices →
fullName	Complex Programmable Logic Device →
hasAdvantageOverFPGA	often non-volatile configuration → shorter configuration time → simpler architecture →
hasArchitecture	array of macrocells → programmable interconnect matrix → sum-of-products logic structure →
hasComponent	I/O blocks → fixed or partially programmable OR array → macrocells with flip-flops → programmable AND array →
hasDisadvantageComparedToFPGA	less flexible routing resources → lower logic density →
hasProperty	deterministic propagation delay → fast power-up configuration → low to moderate power consumption → non-volatile configuration memory in many families → predictable timing → reconfigurable → relatively low logic capacity compared to FPGAs →
majorVendor	Altera → Lattice Semiconductor → Microchip Technology → Xilinx →
programmedWith	JTAG interface → in-system programming tools →
supportsFeature	asynchronous and synchronous resets → global clock networks → registered and combinational outputs → tri-state I/O control →
typicalLogicCapacity	tens to a few thousand logic gates →
usedFor	address decoding → bus interfacing → control logic applications → glue logic applications → implementing custom digital logic functions in hardware → interface logic applications → simple digital signal processing control → state machine implementation →
usedIn	automotive electronics → consumer electronics → embedded systems → industrial control systems → prototyping of digital circuits → telecommunications equipment →

Referenced by (3)

Subject (surface form when different)	Predicate
IEEE 1532 →	appliesTo
CPLD ("Complex Programmable Logic Device") →	fullName
Altera ("CPLD") →	productType