XC6SLX45T-2FGG484C 是 Xilinx Spartan-6 家族中一款在成本与性能之间取得良好平衡的中高密度 FPGA，面向批量化的嵌入式、工业与消费类产品。它基于成熟的 45 nm 工艺，器件资源能满足常见的并行逻辑、定点 DSP 和中等规模存储需求：器件大约包含 43,661 个逻辑单元（logic cells），片上 Block RAM 总量约为 2,088 Kb（以 18 Kb 为单位的 BRAM 组块），内置约 58 个 DSP48A1 乘加切片（适合 18×18 位定点乘法累加），并在 FGG484 封装下提供接近 300 个用户 I/O（实际可用 I/O 受封装映射与 VCCO 配置影响）
Spartan-6 把可配置逻辑单元（CLB/LAB）、片上 RAM、DSP 切片、专用时钟模块（CMT，包含 PLL/DCM）和多种 I/O 单元结合在一起，形成一个适合做数据前端、协议处理与低至中速并行计算的系统级可编程平台。DSP48A1 的存在使得该器件在定点滤波、FIR/IIR、FFT 前端、音视频预处理和其他乘加密集型应用中表现优越；Block RAM 则便于实现本地 FIFO、缓存或状态保存，减轻外部内存带宽压力。器件支持丰富的 I/O 标准，包括 LVCMOS、电平兼容标准、差分 LVDS 以及适用于存储器接口的 SSTL/HSTL 等，能与多种外设和外部存储器类型对接。
FGG484 封装为板级设计提供了较多的 I/O 引脚布局灵活性，可实现多种总线与高速链路（例如 LVDS 差分链路、多个并行接口或差分串行线路）。器件支持常见的配置/编程方式：JTAG、从 SPI/Flash 加载的 Slave Serial 或从片外并行 PROM（SelectMAP/BPI）配置等，便于在量产时采用外部闪存储存 bitstream 并通过主控序列完成上电加载。
同时需要注意的局限性：与更新的 FPGA 家族相比（例如 7 系列、UltraScale），Spartan-6 在逻辑密度、片上内存带宽、DSP 密度与高速 SerDes 能力（速率与通道数）上都有限制，因此对于需要极高带宽、超大规模并行或需要 HBM/大量 SerDes 的应用并不适合。
以下是 Xilinx Spartan-6 FPGA 其他型号选型：
XC6SLX9-N3FTG256C XC6SLX100T-N3FGG900I XC6SLX45T-4CSG324C XC6SLX25T-3CSG324C XC6SLX150T-4FGG676C
XC6SLX9-N3CSG324C XC6SLX100T-N3FGG676I XC6SLX45T-3FGG484I XC6SLX25T-2FGG484I XC6SLX150T-4FGG484C
XC6SLX9-N3CSG225I XC6SLX100T-N3FGG676C XC6SLX45T3FGG484I XC6SLX25T-2FGG484C XC6SLX150T-3FGG900I
XC6SLX9-L1TQG144I XC6SLX100T-N3FGG484I XC6SLX45T-3FGG484C XC6SLX25T-2FG484I XC6SLX150T-3FGG900C
XC6SLX9-L1FT256I XC6SLX100T-N3FG900I XC6SLX45T3FGG484C XC6SLX25T-2FG484C XC6SLX150T-3FGG676I
XC6SLX9-L1CSG324I XC6SLX100T-N3FG676I XC6SLX45T-3FG484I XC6SLX25T-2CSG324I XC6SLX150T3FGG676I
XC6SLX9-L1CSG225I XC6SLX100T-N3FG676C XC6SLX45T-3FG484C XC6SLX25T-2CSG324C XC6SLX150T-3FGG676C
XC6SLX9-L1CSG225C XC6SLX100T-N3FG484I XC6SLX45T-3CSG484I XC6SLX25-N3FTG256I XC6SLX150T-3FGG676
XC6SLX9-L1CPG196I XC6SLX100T-N3FG484C XC6SLX45T-3CSG484C XC6SLX25-N3FTG256C XC6SLX150T-3FGG484I
XC6SLX9-FTG256BIV XC6SLX100T-N3CSG484I XC6SLX45T-3CSG324I XC6SLX25-N3FT256C XC6SLX150T-3FGG484C
XC6SLX9-3TQG144I XC6SLX100T-N3CSG484C XC6SLX45T-3CSG324C XC6SLX25-N3FGG484C XC6SLX150T-3FG900I
XC6SLX9-3TQG144C XC6SLX100T-4FGG900C XC6SLX45T-2FGG484I XC6SLX25-N3FG484I XC6SLX150T-3FG900C
XC6SLX93TQG144C XC6SLX100T-4FGG676C XC6SLX45T-2FGG484C XC6SLX25-N3FG484C XC6SLX150T-3FG676I
XC6SLX9-3FTG256I XC6SLX100T-4FGG484C XC6SLX45T2FGG484C XC6SLX25-N3CSG324I XC6SLX150T-3FG676C
XC6SLX9-3FTG256C XC6SLX100T-4CSG484C XC6SLX45T-2FGG484 XC6SLX25-N3CSG324C XC6SLX150T-3FG484C
XC6SLX9-3FTG256 XC6SLX100T-3FGG900I XC6SLX45T-2FG484I XC6SLX25-L1FTG256I XC6SLX150T-3CSG484I
XC6SLX9-3FT256I XC6SLX100T-3FGG900C XC6SLX45T-2FG484C XC6SLX25-L1CSG324I XC6SLX150T-3CSG484C
XC6SLX9-3CSG324I XC6SLX100T-3FGG900 XC6SLX45T-2CSG484I XC6SLX25-FTG256BIV XC6SLX150T-2FGG900I
XC6SLX9-3CSG324C XC6SLX100T-3FGG676I XC6SLX45T-2CSG484C XC6SLX25-FTG256 XC6SLX150T-2FGG900C
XC6SLX9-3CSG225I XC6SLX100T-3FGG676C XC6SLX45T-2CSG324I XC6SLX25-3FTG256I XC6SLX150T-2FGG676I
XC6SLX9-3CSG225C XC6SLX100T-3FGG484I XC6SLX45T-2CSG324C XC6SLX25-3FTG256C XC6SLX150T-2FGG676C
XC6SLX9-3CPG196C XC6SLX100T-3FGG484C XC6SLX45-N3FGG676I XC6SLX25-3FT256I XC6SLX150T-2FGG484I
XC6SLX9-2TQG144I XC6SLX100T3FGG484C XC6SLX45-N3FGG676C XC6SLX25-3FT256C XC6SLX150T-2FGG484C
XC6SLX92TQG144I XC6SLX100T-3FGG484 XC6SLX45-N3FGG484I XC6SLX25-3FGG484I XC6SLX150T-2FG900C
XC6SLX9-2TQG144C XC6SLX100T-3FG900I XC6SLX45-N3FGG484C XC6SLX25-3FGG484C XC6SLX150T-2FG676I
XC6SLX92TQG144C XC6SLX100T-3FG676I XC6SLX45-N3FG676I XC6SLX25-3FG484I XC6SLX150T-2FG676C
XC6SLX9-2TQG144 XC6SLX100T-3FG484I XC6SLX45-N3FG676C XC6SLX25-3FG484C XC6SLX150T-2FG484I
XC6SLX9-2TQ144C XC6SLX100T-3CSG484I XC6SLX45-N3FG484I XC6SLX25-3CSG324I XC6SLX150T-2FG484C
XC6SLX9-2FTG256I XC6SLX100T-3CSG484C XC6SLX45-N3FG484C XC6SLX25-3CSG324C XC6SLX150T-2CSG484I
XC6SLX9-2FTG256C XC6SLX100T-2FGG900I XC6SLX45-N3CSG484I XC6SLX25-2FTG256I XC6SLX150T-2CSG484C
XC6SLX92FTG256C XC6SLX100T-2FGG900C XC6SLX45-N3CSG484C XC6SLX252FTG256I XC6SLX150-N3FGG900I
XC6SLX9-2FT256I XC6SLX100T-2FGG676I XC6SLX45-N3CSG324I XC6SLX25-2FTG256C XC6SLX150-N3FGG676I
XC6SLX9-2FT256C XC6SLX100T-2FGG676C XC6SLX45-N3CSG324C XC6SLX252FTG256C XC6SLX150-N3FGG676C
XC6SLX9-2CSG324I XC6SLX100T-2FGG484I XC6SLX45-L1FGG676I XC6SLX25-2FT256I XC6SLX150-N3FGG484I
XC6SLX9-2CSG324C XC6SLX100T-2FGG484C XC6SLX45-L1FGG676C XC6SLX25-2FT256C XC6SLX150-N3FGG484C
XC6SLX9-2CSG225I XC6SLX100T-2FG900I XC6SLX45-L1FGG484I XC6SLX25-2FGG484I XC6SLX150-N3CSG484I
XC6SLX9-2CSG225C XC6SLX100T-2FG900C XC6SLX45-L1FGG484C XC6SLX25-2FGG484C XC6SLX150-L1FGG900C
XC6SLX92CSG225C XC6SLX100T-2FG676I XC6SLX45-L1CSG484I XC6SLX252FGG484C XC6SLX150-L1FGG484I
XC6SLX9-2CPG196I XC6SLX100T-2FG676C XC6SLX45-L1CSG324I XC6SLX25-2FG484I XC6SLX150-L1FGG484C
XC6SLX9-2CPG196C XC6SLX100T-2FG484I XC6SLX45-L1CSG324C XC6SLX25-2FG484C XC6SLX150-L1FG900C
XC6SLX9-1TQG144I XC6SLX100T-2CSG484I XC6SLX45FGG484 XC6SLX25-2CSG324I XC6SLX150-L1FG484I
XC6SLX9-1FTG256I XC6SLX100T-2CSG484C XC6SLX45CSG324 XC6SLX25-2CSG324C XC6SLX150-L1CSG484I
XC6SLX75T-N3FGG676I XC6SLX100T-1FGG484C XC6SLX45-3FGG676I XC6SLX252CSG324C XC6SLX150-3FGG900I
XC6SLX75T-N3FGG676C XC6SLX100-N3FGG676I XC6SLX45-3FGG676C XC6SLX25-2CSG324 XC6SLX150-3FGG900C
XC6SLX75T-N3FGG484I XC6SLX100-N3FGG676C XC6SLX45-3FGG484I XC6SLX16-N3FTG256C XC6SLX1503FGG900C
XC6SLX75T-N3FGG484C XC6SLX100-N3FG484I XC6SLX45-3FGG484C XC6SLX16-N3FT256I XC6SLX150-3FGG676I
XC6SLX75T-N3FG676C XC6SLX100-N3FG484C XC6SLX453FGG484C XC6SLX16-N3CSG324I XC6SLX1503FGG676I
XC6SLX75T-N3FG484C XC6SLX100-N3CSG484I XC6SLX45-3FGG484 XC6SLX16-N3CSG324C XC6SLX150-3FGG676C
XC6SLX75T-N3CSG484I XC6SLX100-N3CSG484C XC6SLX45-3FG676I XC6SLX16-N3CSG225I XC6SLX1503FGG676C
XC6SLX75T-4FGG484C XC6SLX100-L1FGG676I XC6SLX45-3FG676C XC6SLX16-N3CSG225C XC6SLX150-3FGG676
XC6SLX75T-4CSG484C XC6SLX100-L1FGG676C XC6SLX45-3FG484I XC6SLX16-L1FTG256I XC6SLX150-3FGG484I
XC6SLX75T-3FGG676I XC6SLX100-L1FGG484I XC6SLX45-3FG484C XC6SLX16-L1FT256I XC6SLX1503FGG484I
XC6SLX75T-3FGG676C XC6SLX100-L1FG676I XC6SLX45-3CSG484I XC6SLX16-L1CSG324I XC6SLX150-3FGG484C
XC6SLX75T-3FGG484I XC6SLX100-L1FG676C XC6SLX45-3CSG484C XC6SLX16-L1CSG324C XC6SLX150-3FGG484
XC6SLX75T-3FGG484C XC6SLX100-L1FG484I XC6SLX45-3CSG324I XC6SLX16-L1CSG225I XC6SLX150-3FG676I
XC6SLX75T-3FG676I XC6SLX100-L1CSG484I XC6SLX45-3CSG324C XC6SLX16-L1CSG225C XC6SLX150-3FG676C
XC6SLX75T-3FG484I XC6SLX100-L1CSG484C XC6SLX453CSG324C XC6SLX16-L1CPG196I XC6SLX150-3FG484I
XC6SLX75T-3CSG484I XC6SLX100-3FGG676I XC6SLX45-2FGG676I XC6SLX16-L1CPG196C XC6SLX150-3FG484C
XC6SLX75T-3CSG484C XC6SLX100-3FGG676C XC6SLX45-2FGG676C XC6SLX16-FTG256DIV XC6SLX150-3CSG484I
XC6SLX75T-2FGG676I XC6SLX100-3FGG484I XC6SLX45-2FGG484I XC6SLX16-CSG324 XC6SLX150-3CSG484C
XC6SLX75T-2FGG676C XC6SLX100-3FGG484C XC6SLX45-2FGG484CES XC6SLX16-3FTG256I XC6SLX150-2FGG900I
XC6SLX75T-2FGG484I XC6SLX100-3FG676I XC6SLX45-2FGG484C XC6SLX16-3FTG256C XC6SLX150-2FGG900C
XC6SLX75T-2FGG484C XC6SLX100-3FG676C XC6SLX452FGG484C XC6SLX16-3FTG256 XC6SLX150-2FGG676I
XC6SLX75T-2FG676I XC6SLX100-3FG484I XC6SLX45-2FGG484 XC6SLX16-3FT256I XC6SLX150-2FGG676C
XC6SLX75T-2FG484I XC6SLX100-3FG484C XC6SLX45-2FG676I XC6SLX16-3FT256C XC6SLX150-2FGG484I
XC6SLX75T-2CSG484I XC6SLX100-3CSG484I XC6SLX45-2FG484I XC6SLX16-3CSG324I XC6SLX150-2FGG484C
XC6SLX75T-2CSG484C XC6SLX100-3CSG484C XC6SLX45-2FG484C XC6SLX16-3CSG324C XC6SLX150-2FG900I
XC6SLX75-N3FGG676I XC6SLX100-2FGG676I XC6SLX45-2CSG484I XC6SLX16-3CSG225I XC6SLX150-2FG676I
XC6SLX75-N3FGG676C XC6SLX1002FGG676I XC6SLX452CSG484I XC6SLX16-3CSG225C XC6SLX150-2FG676C
XC6SLX75-N3FGG484I XC6SLX100-2FGG676C XC6SLX45-2CSG484C XC6SLX16-3CPG196I XC6SLX150-2FG484I
XC6SLX75-N3CSG484C XC6SLX100-2FGG676 XC6SLX452CSG484C XC6SLX16-3CPG196C XC6SLX150-2FG484C
XC6SLX75-L1FGG484I XC6SLX100-2FGG484I XC6SLX45-2CSG324I XC6SLX16-2FTG256I XC6SLX150-2CSG484I
XC6SLX75-L1FGG484C XC6SLX100-2FGG484C XC6SLX452CSG324I XC6SLX162FTG256I XC6SLX1502CSG484I
XC6SLX75-L1FG676I XC6SLX1002FGG484C XC6SLX45-2CSG324C XC6SLX16-2FTG256C XC6SLX150-2CSG484C
XC6SLX75-L1CSG484I XC6SLX100-2FG676I XC6SLX4-3TQG144I XC6SLX16-2FT256I XC6SLX150T-N3FGG676C
XC6SLX75-L1CSG484C XC6SLX100-2FG676C XC6SLX4-3TQG144C XC6SLX16-2FT256C XC6SLX150T-N3FGG484I
XC6SLX75-3FGG676I XC6SLX100-2FG484C XC6SLX4-3CSG225I XC6SLX16-2CSG324I XC6SLX150T-N3FGG484C
XC6SLX75-3FGG676C XC6SLX100-2CSG484I XC6SLX4-3CSG225C XC6SLX162CSG324I XC6SLX150T-N3FG676I
XC6SLX75-3FGG484I XC6SLX100-2CSG484C XC6SLX4-3CPG196I XC6SLX16-2CSG324C XC6SLX150T-N3FG676C
XC6SLX75-3FGG484C XA6SLX9-2FTG256Q XC6SLX4-3CPG196C XC6SLX162CSG324C XC6SLX150T-N3FG484I
XC6SLX75-3FG676I XA6SLX9-2CSG324Q XC6SLX4-2TQG144I XC6SLX16-2CSG324 XC6SLX150T-N3FG484C
XC6SLX75-3FG676C XA6SLX9-2CSG324I XC6SLX4-2TQG144C XC6SLX16-2CSG225I XC6SLX150T-N3CSG484I
XC6SLX75-3FG484I XA6SLX45T-2FGG484Q XC6SLX4-2CSG225I XC6SLX16-2CSG225C XC6SLX150T-N3CSG484C
XC6SLX75-3CSG484I XA6SLX45-3FGG484I XC6SLX4-2CSG225C XC6SLX162CSG225C XC6SLX25T-N3FG484C
XC6SLX753CSG484I XA6SLX45-3CSG324Q XC6SLX4-2CPG196I XC6SLX16-2CPG196I XC6SLX25T-N3CSG324I
XC6SLX75-3CSG484C XA6SLX45-3CSG324I XC6SLX4-2CPG196C XC6SLX16-2CPG196C XC6SLX25T-N3CSG324C
XC6SLX75-2FGG676I XA6SLX45-2FGG484Q XC6SLX4-1CSG225I XC6SLX16-1CSG324I XC6SLX25T-4FGG484C
XC6SLX75-2FGG676C XA6SLX45-2CSG324Q XC6SLX4-1CSG225C XC6SLX16-1CSG225I XC6SLX25T-4CSG324C
XC6SLX75-2FGG484I XA6SLX45-2CSG324I XC6SLX25T-N3FGG484C XC6SLX150T-N3FGG676I XC6SLX25T-3FGG484I
XC6SLX75-2FGG484C XA6SLX4-2CSG225I XA6SLX25T-2CSG324Q XA6SLX16-3FTG256Q XC6SLX25T-3FGG484C
XC6SLX752FGG484C XC6SLX75-2CSG484I XA6SLX25-3FTG256Q XA6SLX16-2FTG256Q XC6SLX25T-3FG484I
XC6SLX75-2FG676I XC6SLX752CSG484I XA6SLX25-3CSG324I XA6SLX16-2CSG324Q XC6SLX25T-3CSG324I
XC6SLX75-2FG484I XC6SLX75-2CSG484C XA6SLX25-2CSG324Q XA6SLX100-2FGG484Q XC6SLX45T-4CSG484C
XC6SLX45T-N3FGG484C