| 1 | Configurable Logic Blocks | Implement combinational and sequential digital logic that can be reconfigured after manufacturing. | Usually contain lookup tables, flip-flops, multiplexers, and local carry logic. | Control logic, protocol conversion, industrial automation, and custom digital processing. | Logic-cell count, architecture efficiency, timing performance, and design-tool support. |
| 2 | Lookup Tables and Flip-Flops | Perform Boolean operations and store one-bit state information for synchronous designs. | LUT inputs commonly range from four to six or more, while flip-flops support pipelining and state machines. | Finite-state machines, data-path logic, counters, filters, and parallel algorithms. | Balance between LUT capacity, register availability, routing utilization, and maximum clock frequency. |
| 3 | Programmable Interconnect | Connects logic blocks, memory, processing units, and I/O resources through configurable routing paths. | Includes switching matrices, horizontal and vertical routing channels, and dedicated carry or clock networks. | Large parallel designs, high-throughput pipelines, networking, and real-time control. | Routing congestion, signal delay, clock distribution quality, and design closure predictability. |
| 4 | Embedded Block RAM | Provides on-chip storage for buffers, tables, queues, caches, and intermediate processing data. | Supports configurable data widths, single-port or dual-port operation, and synchronous read/write access. | Video buffering, packet processing, image pipelines, embedded CPUs, and digital signal processing. | Total memory capacity, port configuration, memory block granularity, latency, and error-correction options. |
| 5 | Dedicated DSP Blocks | Accelerate multiplication, accumulation, addition, and other arithmetic operations. | Often include hardware multipliers, adders, accumulators, pre-adders, and pipeline registers. | Wireless baseband, motor control, radar, audio processing, machine vision, and scientific computing. | DSP block count, supported operand widths, arithmetic precision, throughput, and power efficiency. |
| 6 | General-Purpose I/O | Provides programmable electrical interfaces between the FPGA and external components. | May support multiple voltage standards, adjustable drive strength, slew rate control, and differential signaling. | Sensor interfaces, memory connections, industrial buses, display control, and board-level system integration. | I/O count, voltage compatibility, signal integrity, package pinout, and supported interface standards. |
| 7 | High-Speed Serial Transceivers | Transmit and receive high-speed serial data while reducing the number of physical interconnects. | Use serializer/deserializer circuits, clock-data recovery, equalization, and programmable line rates. | Ethernet equipment, storage systems, PCI Express designs, optical communication, and backplane links. | Number of lanes, supported protocols, maximum data rate, jitter performance, equalization, and reference-clock options. |
| 8 | Clock Management Resources | Generate, multiply, divide, phase-shift, and distribute clock signals across the device. | Common resources include phase-locked loops, delay-locked loops, clock buffers, and regional clock networks. | Multi-rate systems, communications, video processing, motor drives, and low-latency control. | Frequency range, clock jitter, phase-noise performance, skew, and quantity of independent clock domains. |
| 9 | Configuration Memory and Boot Options | Stores the hardware configuration that defines the FPGA's programmed logic after power-up. | Devices may use volatile SRAM configuration with external storage or include non-volatile configuration memory. | Field-upgradable equipment, industrial controllers, aerospace electronics, and prototype development. | Boot time, configuration interfaces, bitstream security, authentication, encryption, and remote-update support. |
| 10 | Power, Package, and Lifecycle Support | Determines system energy consumption, thermal behavior, mechanical integration, and long-term product availability. | Important factors include process technology, static and dynamic power, package type, operating temperature, and product-grade options. | Automotive electronics, telecommunications, data acquisition, medical equipment, and embedded systems. | Thermal design margin, package availability, qualification standards, supply continuity, documentation, and total cost of ownership. |