AMD XC3S50-4CPG132C

Overview

XC3S50-4CPG132C from AMD (formerly Xilinx) is a Spartan-3 FPGA with 50,000 system gates, 176 logic cells, 128 KB of total block RAM, and configured in a 132-pin CSBGA package with 108 user I/Os. It operates at -4 speed grade (4.9 ns CLB delay) and supports 3.3 V/2.5 V/1.2 V mixed-voltage I/O banks.

For engineers reviewing the XC3S50-4CPG132C datasheet, pinout, applications, or equivalent options, key selection factors include I/O voltage flexibility, embedded RAM depth per block, global clock routing capability, and configuration mode support (Master Serial, Slave Parallel, JTAG).

Technical Context

The XC3S50-4CPG132C implements a hierarchical FPGA architecture with configurable logic blocks (CLBs), distributed RAM, and dedicated carry logic for arithmetic. It integrates eight global clock buffers and supports up to four independent clock domains via digital clock managers (DCMs) with phase shift and frequency synthesis.

Configuration is performed via external PROM or processor-controlled parallel interface, with support for IEEE 1149.1 JTAG boundary-scan testing. The device uses SRAM-based configuration memory and requires external configuration bitstream loading at power-up.

Key Specifications

Pinout & Package

XC3S50-4CPG132C is housed in a 132-pin Chip Scale Ball Grid Array (CSBGA) package with 10 mm × 10 mm body size, 0.5 mm pitch, and Pb-free (RoHS-compliant) finish. The package supports thermal dissipation up to 1.2 W under typical operating conditions.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar FPGA-based logic implementation applications.

Compared with XC3S50-4CPG132C, the XC3S100-4CPG132C offers scalable logic headroom within identical CSBGA packaging, while the XC3S50-4TQG144C trades BGA thermal performance and I/O density for TQFP manufacturability and debug accessibility - both require board-level redesign.

Availability

XC3S50-4CPG132C is available at Aetrix Electronics and suitable for industrial motion control, medical imaging, automotive camera interface, and communications protocol bridge applications requiring stable component supply and long-term obsolescence management.

Supply support for XC3S50-4CPG132C 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 platforms including FPGAs, adaptive SoCs, and AI engines for heterogeneous compute acceleration.

The Spartan-3 family, including XC3S50-4CPG132C, was designed for cost-sensitive, high-volume embedded applications requiring programmable logic with integrated memory and clock management - especially in industrial, automotive, and medical edge devices.

FAQ

What is the maximum operating frequency supported by XC3S50-4CPG132C?

The XC3S50-4CPG132C has a -4 speed grade specifying a 4.9 ns CLB propagation delay, enabling reliable operation at 200 MHz system clock frequency. Actual achievable frequency depends on design placement, routing, and DCM usage - verified timing closure requires static timing analysis in Xilinx ISE 14.7 or earlier toolchain.

Does XC3S50-4CPG132C support JTAG boundary-scan testing?

Yes, XC3S50-4CPG132C fully supports IEEE 1149.1 JTAG boundary-scan via dedicated TCK, TMS, TDI, and TDO pins. This enables in-circuit testing, configuration verification, and debug access during development and production test phases.

What configuration methods are supported by XC3S50-4CPG132C?

XC3S50-4CPG132C supports Master Serial (via SPI PROM), Slave Parallel (host microcontroller-driven), and JTAG modes. Configuration bitstream is loaded into volatile SRAM at power-up; persistent storage requires external nonvolatile memory.

Can XC3S50-4CPG132C operate with mixed I/O voltages on different banks?

Yes, XC3S50-4CPG132C supports independent VCCO supplies per I/O bank (VCCO_0 to VCCO_3), allowing simultaneous 2.5 V and 3.3 V signaling. Each bank must be assigned a single voltage; level-shifting between banks requires external circuitry.

Is XC3S50-4CPG132C RoHS compliant?

Yes, XC3S50-4CPG132C is manufactured in a Pb-free (RoHS-compliant) CSBGA package. The device meets EU Directive 2011/65/EU requirements and carries appropriate marking per IPC/JEDEC J-STD-609A standard.