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Part number EPM1270M256C5N is a CPLD device manufactured by Altera Corporation. Altera is one of the biggest players in the programmable devices market. The company’s product portfolio includes FPGAs, CPLDS, SOC devices as well as a selection of ASIC devices.

CPLD stands for Complex Programmable Logic Device. It is a programmable device that has a less complex architecture as compared to an FPGA. And CPLDs have fewer logic blocks (running upto 1000s), while logic blocks in FPGAs are in the region of 100,000 and more. Hence CPLDS are suitable for simpler operations, while FPGAs can tackle the more complex ones.

Part number EPM1270M256C5N is a MAxII series product and has 1270 logic elements, 127 logic array blocks and 212 I/Os. The maximum operating frequency is 304MHz and the operating temperature range is 0 to +70 degree Centigrade. This component has Flash memory 8192bit. Part number EPM1270M256C5N is RoHS compliant and compatible with surface mounting.

Part number EP3C120F484I7N is an FPGA device, once again from Altera. As we discuss the features of this component, the differences between FPGAs and CPLDs will become apparent.

Part number EP3C120F484I7N has 119088 logic elements and 7443 Logic Array Blocks. The total memory for this component is 3981312bit and it exhibits 283 I/Os. As compared to CPLDS, FPGAs work in an even wider temperature range- this range for part number EP3C120F484I7N is between -40 to +85 degrees Centigrade. This Cyclone 3 series component from Altera is RoHS compliant and has a maximum operating frequency of 315MHz.

Part number EP9312-CBZ is an embedded microprocessor manufactured by Cirrus Logic. A Fabless semiconductor company, Cirrus Logic’s integrated circuits have applications specifically in the audio, energy and industrial sectors. The company specializes in the manufacture of audio processors, audio DSPs, analog and mixed signal ICs.

Part number EP9312-CBZ is an SOC (System on Chip) type of processor that has a processing speed of 200MHz. It functions reliably in an operating voltage supply range of 1.65-3.6V. This component is surface mount compatible.

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