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Embedded - CPLDs (Complex Programmable Logic Devices)

EPM7064STC44-5N application field and working principle

EPM7064STC44-5N is a Complex Programmable Logic Device (CPLD) released by Altera Corporation. It belongs to the second generation of MAX 7000 devices, providing industry-level low cost, low power and high-performance ASIC solutions. Since this product has the flexibility of CPLD and the performance of ASIC, it has become one of the first choices for many customers. Its outstanding performance and low-voltage process make it ideal for many system-level applications.

EPM7064STC44-5N is an ideal device for implementing advanced logic functions, such as state machine selection, FIFO (first-in-first-out) buffer, Boolean (boolean) circuit, timer, random access, multiplexer (MUX), programmable filter and delay line. In addition, customers can design their own designs with Altera\'s delay locked loop (DLL) and read-only memory (ROM). It has all the features of traditional CPLDs, such as simple and easy-to-use Equations Solver compiler, hierachical design and easy debugging, enabling custom logic designs to be completed with ease.

In addition to the above, EPM7064STC44-5N also has a variety of transistor and diode topologies, and can provide 1.25V, 1.5V and 2.5V core voltage and 3.3V and 5V I/O voltages. This device is designed for low power operation, provides around 100 mW operating power in a typical application, and can provide 3V-25V I/O voltage for reliable operation. The device has an MQFP package with 128 pins and a 9.5 mm x 9.5 mm footprint.

EPM7064STC44-5N is widely used in industry and has a variety of applications. It can be used in automotive, computer, consumer, communications, industrial, medical and military applications. It provides flexibility and a variety of features that make it an excellent choice for system-level control applications. In addition, advanced features such as MAC (Message Authentication Code), signature verification and code protection can be used to protect code and minimize system risks.

Working Principle

The working principle of the EPM7064STC44-5N is similar to that of other CPLDs. It is based on an array of logic cells connected by a horizontal and vertical wiring network. The device is composed of multiple logic cells and several input/output elements. Each logic cell contains an internal register, multiple logic functions and various control inputs. The logic cells can be used to create specific logical functions, such as basic instructions, state machines, and Boolean expressions. By simply configuring the device with a programmable logic array (PLA) or field programmable gate array (FPGA), a customer can create user-defined logic functions.

In addition to the logic cells, the EPM7064STC44-5N also includes logic array blocks (LABs), which are more complex logic blocks that comprise multiple logic cells. The logic array blocks are used to create larger and more complex logical functions, such as FIFO memory and random access memory. In addition, the device also contains serial input/output (SIO) blocks, which are used for communication with other devices. They can be used to send and receive data and control signals. The EPM7064STC44-5N also includes power-on self-test (POST) blocks and system clock management (SCM) blocks, which are used to monitor the system and its components.

In summary, the EPM7064STC44-5N is a complex programmable logic device that is used in a variety of applications. It is a low cost and low power device with excellent performance and features. Its features make it an ideal solution for system-level control applications. It is a reliable and easy-to-use device that is capable of creating user-defined logic functions. The device is designed for low power operation and can provide an operating power of up to 100 mW in a typical application.

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