XC3SD1800A-4CS484LI

The XC3SD1800A-4CS484LI is a Spartan®-3A DSP field programmable gate array (FPGA) designed for industrial applications. It combines a large configurable logic capacity with on-chip memory and extensive I/O to support complex digital signal processing and embedded logic functions.

This device is supplied in a 484-ball CSPBGA package and operates over an extended industrial temperature range, offering a balance of integration and reliability for embedded and DSP-focused designs.

Key Features

• Core Architecture  4,160 configurable logic blocks (CLBs) providing a total of 37,440 logic elements for implementing complex digital logic and DSP algorithms.
• Embedded Memory  Approximately 1.55 Mbits of on-chip RAM (1,548,288 total RAM bits) to support data buffering, lookup tables, and on-chip storage.
• I/O Capacity  309 user I/O pins to interface with peripherals, sensors, and external memory devices.
• Logic Scale  Equivalent to approximately 1,800,000 logic gates for medium-to-large FPGA designs.
• Power  Core supply range from 1.14 V to 1.26 V to match system power rails and enable predictable power budgeting.
• Package & Mounting  484-ball CSPBGA (484-FBGA) package, supplier device package 484-CSPBGA (19×19), designed for surface mount assembly.
• Temperature Range  Industrial operating temperature from −40 °C to 100 °C for deployment in temperature-challenging environments.
• Regulatory  RoHS compliant for reduced hazardous substance content.

Typical Applications

• Digital Signal Processing (DSP)  Implement filtering, transforms, and other DSP functions leveraging the device’s DSP-oriented architecture and on-chip memory.
• Embedded Logic and Control  Integrate custom control logic and state machines where a large number of logic elements and plentiful I/O are required.
• Data Buffering and Protocol Bridging  Use the on-chip RAM and abundant I/O to buffer streams and bridge between digital interfaces in industrial systems.

Unique Advantages

• Significant logic capacity: 37,440 logic elements enable implementation of complex custom logic and DSP functions without immediate need for external processors.
• Substantial embedded memory: Approximately 1.55 Mbits of on-chip RAM reduces reliance on external memory for many buffering and processing tasks.
• High I/O count: 309 I/O pins simplify connectivity to peripherals, sensors, and interface circuitry, reducing board-level complexity.
• Industrial temperature rating: Rated from −40 °C to 100 °C for reliable operation in industrial environments.
• Compact, surface-mount packaging: 484-CSPBGA (19×19) package supports high-density board designs while maintaining robust mounting characteristics.
• RoHS compliant: Meets reduced hazardous substance requirements for regulated supply chains.

Why Choose XC3SD1800A-4CS484LI?

The XC3SD1800A-4CS484LI positions itself as a high-capacity Spartan®-3A DSP FPGA that combines a large number of logic elements with substantial on-chip RAM and a high pin count, delivered in a compact 484-ball CSPBGA package. Its industrial temperature rating and RoHS compliance make it suitable for demanding embedded and DSP-centric designs where reliability and integration are priorities.

This device is well suited for engineers and procurement teams designing medium-to-large FPGA-based systems that require significant logic and memory resources, flexible I/O, and industrial-grade operating range. Its specification set supports scalable designs that balance performance with integration.

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