EPM1270F256C4

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EPM1270F256C4 is an integrated Complex Programmable Logic Device, also called CPLD, based on the popular PeMico / Altera MAX architecture, providing up to 256 macrocells available for user logic. It is widely used in many embedded applications due to its low capability and low cost.

Overview

The EPM1270F256C4 is a highly integrated CPLD device that can satisfy many kinds of customer applications. It has 256 macrocells which are configurable to enough logic to satisfy most customer design requirements. In addition, it has four dedicated global input/output pins and 31 programmable I/O pins, a dedicated JTAG programming port, as well as a Dedicated Reset Pin. It is based on the popular PeMico / Altera MAX architecture for customer system loads and customer applications.

Features

The EPM1270F256C4 CPLD contains 256 macrocells and four dedicated global input/output pins, with the following features:

• Low power consumption: 2.5V @ 5mA, with over 1.8V voltage variance.
• High-performance logic core, up to 166MHz with Dual-Port RAM.
• User application logic of up to 256 Macrocells.
• 4 dedicated global Input/Output Pins, 31 programmable I/O Pins.
• Very low noise sensitivity and very low power consumption.
• JTAG Port for programming and debugging.
• Fast logic updates with Device Utility software.
• Supports multiple operating temperatures.

Application Fields

The EPM1270F256C4 CPLD is commonly used in many embedded applications due to its versatile and low cost design. It can be used in various designs such as automotive, industrial, communications and consumer electronics applications. It has a wide range of applications, including: data acquisition systems, factory automation, signal processing, communications, automotive systems and embedded systems.

Due to its low power consumption, EPM1270F256C4 can be used in remote and battery powered devices, such as sensors and monitors. It can also be used for rapid prototyping of design concepts, due to its fast programming time.

Working Principle of the EPM1270F256C4 CPLD

The working principle of the EPM1270F256C4 CPLD is based on the PeMico / Altera MAX architecture. The logic core consists of 256 programmable logic cells, with dual-port RAM and multiple output combinatorial routing resources. A single programming \'step\' of the device is a complex array of logic elements, combined together with a flat, square architecture. This architecture allows for the programming of user-specific \'logic functions\' or \'macros\' into the device.

Programming is done by placing the desired logic functions onto the chip using a logic diagram editor. The programming is then done with a utility program, usually supplied by Altera. The utility program reads a data file from the logic diagram editor and creates a data file which is downloaded to the device via a special JTAG port.

The user-specific logic functions are programmed into the device via the JTAG-programmed data file. If the logic functions are set, the device can then take control of the system and the logic functions are enabled. In addition, the device\'s global input/output pins can be used for control, command and indication of the CPLD device.

Conclusion

The EPM1270F256C4 CPLD device is a highly integrated, low-cost and low-power CPLD device, based on the PeMico / Altera MAX architecture. It has up to 256 macrocells of programmable logic and 31 programmable I/O pins, as well as a dedicated JTAG programming port, enabling it to be used in many embedded applications. The EPM1270F256C4 CPLD device is a versatile and cost-effective solution for various designs.

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