| MODEL P/N | SERIES | NUMBER OF LABS/CLBS | SPEED GRADE | NUMBER OF LOGIC ELEMENTS / CELLS | TOTAL RAM BITS | NUMBER OF I/O | VOLTAGE – SUPPLY | MOUNTING TYPE | OPERATING TEMPERATURE | PACKAGE / CASE | SUPPLIER DEVICE PACKAGE |
|---|---|---|---|---|---|---|---|---|---|---|---|
| XC5VSX50T-1FFG1136I | Virtex-5 SX | 4,00 | -1,00 | 52 224 | 4 866 048 | 480 | 0.95 V – 1.05 V | Surface Mount | -40 °C ~ +100 °C (I) | 1136-FBGA / FCBGA | 1136-FCBGA (≈ 35 × 35 mm) |
XC5VSX50T-1FFG1136I
Manufacturer: Xilinx
Logic Cells: 52,224
Logic Slices: 8,160
Embedded RAM (eRAM): 1,728 Kb
Package: FFG1136 (Flip-Chip BGA)
Operating Temperature: Industrial (-40°C to +100°C)
Specifications
The XC5VSX50T-1FFG1136I is a mid-range FPGA from the Virtex-5 SXT family (Xilinx, now AMD), built on the proven 65nm process and focused on DSP-centric applications that also require solid high-speed serial transceivers.
Here’s the quick specs rundown engineers usually look for:
- ~52,224 logic cells (with 4,080 CLBs/slices) — decent capacity for multi-channel DSP filters, video processing paths, FFT cores, or moderate-to-complex signal-processing designs
- 8 RocketIO GTX transceivers — these provide reliable multi-gigabit serial links, typically supporting up to ~6.5 Gbps in real deployments (great for 10Gb Ethernet, PCIe Gen1/2, Serial RapidIO, or custom high-speed data interfaces)
- 480 user I/Os — good number of flexible pins for external DDR2/3 memory, fast ADCs/DACs, or board interconnects
- Embedded block RAM around 4.86 Mbit (plus distributed RAM for smaller buffers and FIFOs)
- ~288 DSP48E slices — second-gen 25×18 multipliers with 48-bit accumulators, optimized for high-throughput fixed- or floating-point math, filters, and arithmetic-heavy tasks
- Package: 1136-pin FFG (flip-chip BGA, ~35 × 35 mm), industrial temperature range (-40°C to +100°C junction)
- -1 speed grade — delivers balanced performance and timing headroom while keeping power reasonable for many DSP/SerDes-focused apps
The SXT series is DSP + transceiver oriented — it emphasizes those DSP48E blocks and GTX ports over embedded processors (no PowerPC; that’s FXT territory) or maximum plain logic density (more LX/LXT).

