AMD XCS40XL-5PQ208C

Overview

XCS40XL-5PQ208C from AMD (formerly Xilinx) is a Spartan-XL family FPGA with 40,000 system gates, 5 ns logic delay, PQ208 package, and 176 user I/Os. It targets mid-range digital logic control in industrial PLCs, legacy interface bridging, and reconfigurable I/O subsystems.

For engineers reviewing the XCS40XL-5PQ208C datasheet, pinout, applications, or equivalent options, key selection criteria include logic density, I/O count, speed grade, configuration method, and industrial temperature support.

Technical Context

This FPGA implements SRAM-based configurable logic blocks (CLBs), dedicated carry logic, and I/O blocks supporting LVTTL/LVCMOS standards. Configuration is performed via serial PROM or parallel mode using an external master device.

The XCS40XL-5PQ208C operates over the commercial temperature range (0°C to 70°C), supports IEEE 1149.1 JTAG boundary-scan testing, and requires external configuration memory for power-up initialization.

Key Specifications

Pinout & Package

PQ208 package: 208-pin plastic quad flat pack, 28 × 28 mm body, 0.5 mm lead pitch, gull-wing leads, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar FPGA logic replacement applications.

Compared with XCS40XL-5PQ208C, the XCS40-5PQ208C trades 2,000 gates and I/O robustness for lower unit cost, while the XCS50XL-5PQ208C retains full compatibility but adds headroom for logic expansion without changing PCB layout.

Availability

XCS40XL-5PQ208C is available at Aetrix Electronics and suitable for industrial control logic, legacy interface bridging, and reconfigurable I/O subsystems requiring stable component supply across long-lifecycle programs.

Supply support for XCS40XL-5PQ208C includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

AMD acquired Xilinx in 2022 and now develops adaptive computing solutions including FPGAs, adaptive SoCs, and AI accelerators.

The Spartan-XL family was designed for cost-sensitive, high-volume applications requiring reliable reconfigurable logic with industrial-grade I/O and simple configuration architecture.

FAQ

What is the configuration method supported by XCS40XL-5PQ208C?

The XCS40XL-5PQ208C supports Master Serial and Master Parallel configuration modes. In Master Serial mode, it loads bitstream from an external serial PROM; in Master Parallel mode, it reads configuration data from an 8-bit wide parallel memory. Both methods require external non-volatile memory and do not support in-system programming without additional circuitry.

Does XCS40XL-5PQ208C support JTAG boundary-scan testing?

Yes, XCS40XL-5PQ208C fully complies with IEEE 1149.1 and provides TCK, TMS, TDI, and TDO pins for boundary-scan testing. This enables board-level interconnect verification and in-circuit debugging without requiring functional firmware, making it suitable for high-reliability manufacturing test flows.

What is the maximum operating frequency achievable with XCS40XL-5PQ208C?

The XCS40XL-5PQ208C has a -5 speed grade specifying 5 ns CLB propagation delay. In typical designs with moderate routing congestion, this supports system clock frequencies up to 160 MHz. Actual performance depends on logic depth, register placement, and I/O timing constraints defined in the placed-and-routed netlist.

Can XCS40XL-5PQ208C operate in industrial temperature environments?

No, XCS40XL-5PQ208C is rated for 0°C to +70°C (commercial temperature range). For industrial applications requiring operation from –40°C to +85°C, designers must select the XCS40XL-5PQ208I variant, which shares identical logic resources and pinout but is screened and qualified for extended temperature operation.

How many global clock inputs does XCS40XL-5PQ208C provide?

XCS40XL-5PQ208C provides four dedicated global clock inputs (GCK0–GCK3), each connected to a low-skew routing network that distributes clock signals to all CLBs and I/O blocks with minimal skew. These inputs accept single-ended CMOS or LVTTL-compatible waveforms and support both rising- and falling-edge triggered logic.