Spartan-XL field programmable gate array. The **XCS40XL-4PQ208C** is a member of the **XC4000XL** family of Field-Programmable Gate Arrays (FPGAs) manufactured by **Xilinx**. Below are its key specifications, descriptions, and features:
### **Specifications:**
- **Manufacturer:** Xilinx
- **Family:** XC4000XL
- **Part Number:** XCS40XL-4PQ208C
- **Logic Cells:** ~40,000 gates
- **Speed Grade:** -4 (indicating performance level)
- **Package:** PQ208 (Plastic Quad Flat Pack, 208 pins)
- **Operating Voltage:** 3.3V
- **I/O Pins:** User-configurable, varies based on design
- **Configuration:** SRAM-based (volatile, requires external configuration memory)
- **Operating Temperature:** Commercial (0°C to +70°C)
### **Descriptions:**
- The **XCS40XL-4PQ208C** is a mid-range FPGA from Xilinx's **XC4000XL** series, optimized for cost-sensitive applications with moderate logic density.
- It features a **3.3V core voltage**, making it suitable for low-power designs.
- The **PQ208 package** provides a balance between pin count and board space efficiency.
- It supports **in-system programming (ISP)** via an external configuration device (e.g., PROM).
### **Features:**
- **High Logic Density:** ~40,000 system gates for flexible digital logic implementation.
- **Flexible I/O:** Supports a mix of input/output standards (3.3V TTL/CMOS).
- **SRAM-Based Configuration:** Requires external memory for programming.
- **On-Chip RAM:** Distributed and block RAM for data storage.
- **Dedicated Arithmetic Logic:** Supports fast carry logic for arithmetic functions.
- **JTAG Support:** Enables boundary-scan testing and in-system programming.
- **Low Power Consumption:** Optimized for 3.3V operation.
This FPGA is commonly used in **digital signal processing (DSP), communications, and embedded control applications**.
Let me know if you need further details!
