LC4384C-35FT256C

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Embedded systems often require complex logic functions and complex interfacing, which can be difficult to achieve using traditional logic components. CPLDs (Complex Programmable Logic Devices)are programmable logic components that are designed for use in embedded systems to provide the flexibility and performance needed for complex tasks. The LC4384C-35FT256C is a CPLD from STMicroelectronics, and is frequently used in embedded applications requiring complex logic and flexible interfacing. In this article, we will discuss the application field for the LC4384C-35FT256C, as well as its working principle.

Application Field

The LC4384C-35FT256C is an embedded CPLD device with 256 macrocells, a VCC range of 2.7 to 5.5V, and a maximum operating frequency of 40MHz. It includes 8 macrocell columns and 32 rows, each with dedicated inputs and outputs. This is combined with 64 input/output pins in a 28-pin SSOP or 44-pin TQFP package, enabling a wide range of applications including control, system supervision, power sequencing, and interfacing. The LC4384C-35FT256C is especially well-suited for automotive applications, where its robust internal design and external packaging makes it well-suited for harsh environments, temperatures ranging from -40°C to 125°C, and the integrated protection features enable the design of reliable, cost-effective solutions.

The LC4384C-35FT256C also features an integrated logic optimization algorithm, which helps to reduce the power consumption of the device and extend its battery life. The device also supports a variety of different programming languages, including VHDL, Verilog and ABEL, which gives developers the flexibility to tailor their code to the specific requirements of their embedded application.

Working Principle

The working principle of LC4384C-35FT256C is based on the verbose logic systems. It is composed of macrocell array which includes 8 logic paths having 32 cells with dedicated input and output pins. Each macrocell can have up to 8 logic signals combined in a 16-bit decode or combination logic. This means that the number of macros can be increased without increasing the area and cost of the CPLD. The higher density allows more flexibility in the design of the CPLD and reduces the complexity of the design.

The macrocell array of the LC4384C-35FT256C is organized in a way that allows for the efficient distribution of logic resources. Each cell can access up to two adjacent logic path outputs, allowing for the creation of larger, more complex logic functions. This also allows for the easy integration of embedded memory elements, such as RAM and ROM blocks.

The presence of logic synthesizer allows the LC4384C-35FT256C to quickly translate user programmable logic design data into a register transfer level netlist. Also, the chip includes an integrated Configuration Controller (CC) which provides an easy to use way to program the logic design into the device. The integrated CC is also useful when configuring the internal resources of the device, allowing the designer to assign resources to their design.

Conclusion

The LC4384C-35FT256C is a versatile CPLD device that offers an integrated solution for embedded system applications that require complex logic and interfacing. Its high density, robust internal design and external packaging make it ideal for automotive applications or other harsh environmental conditions. In addition, the presence of logic synthesizer and the integrated Configuration Controller make the LC4384C-35FT256C easy to configure and program for any application.

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