XC3S1400A-4FT256I

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Embedded - FPGAs (Field Programmable Gate Array)

XC3S1400A-4FT256I is an embedded field programmable gate array (FPGA) with Spartan-3E architecture. It is a cost-effective solution that offers the perfect balance of low power consumption, performance and cost. This FPGA can deliver up to 5600 logic cells, up to 264 user defined I/O pins, as well as 56 embedded digital signal processors (DSP) used for digital signal processing. Additionally, it is embedded with power-saving features such as dynamic clocking, variable voltage operation and low standby power.

In terms of application fields, XC3S1400A-4FT256I is widely used in video processing and image processing, embedded processor design, military systems, telecommunications, industrial control. For example, it can be used in satellite TV & radio systems, video cameras, and other applications where high speed throughput and high-resolution performance is needed.

To achieve this, XC3S1400A-4FT256I features various programmable features including Power Aware Design Verification, Design Compilation, Logic Synthesis, and Timing Simulation. This enables designers to target their design goals dynamically, optimizing their design performance with respect to cost, power, speed, and area. Moreover, the combination of clock-gating and power-gating features allow for improved power efficiency.

Working Principle

XC3S1400A-4FT256I is based on a combination of static random access memory (SRAM) and nonvolatile memory (FLOW) technology. By enabling robust reprogrammable logic, the design process can be simplified and improved. During programming, the SRAM stores all the logic configuration data while the FLOW stores all configuration information regarding the oscillator, power, and reset. This information is used by the FPGA to configure itself upon power up.

At the core of the FPGA is the array core, a huge array of logical elements connected together via programmable interconnects. These logical elements are divided into two types, and each type has different characteristics. The logical elements include lookup tables (LUTs), logic cells (LCs) and multiplexers (MUXs). The LUTs are used to store Boolean functions, while the LCs are used to implement logic operations. The MUXs are designed to enable the user to switch between different LUTs and LCs to better optimizes the design.

The different components on an FPGA are connected together with programmable interconnects. These interconnects are configured by the user before programming the FPGA. Interconnects are like tiny wires between two components. By changing the configuration of the interconnects, the functionality of the FPGA can be changed. This allows designers to quickly implement new designs or modify existing ones without having to change the actual logic components.

Finally, the FPGA is programmed with a configuration memory. This memory enables the FPGA to reconfigure itself upon power-up, allowing for quick reprogrammability. The configuration memory can also be updated periodically to provide periodic updates for the FPGA. In this way, designers can easily adapt their systems to changing requirements and update their designs whenever necessary.

In conclusion, XC3S1400A-4FT256I is an embedded FPGA designed to provide low power solutions along with the performance and cost to meet the demands of the modern embedded market. Its programmability and design flexibility makes it an attractive choice for a variety of applications.

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