AMD XCS10-4PC84C

Overview

XCS10-4PC84C from AMD (formerly Xilinx) is a Spartan-XL family FPGA with 10,000 system gates, 84-pin PLCC package, 4.5 ns input-to-output delay, and 3.3 V I/O compatibility. It serves as a reconfigurable logic fabric in industrial control interfaces requiring deterministic timing and moderate gate count.

For engineers reviewing the XCS10-4PC84C datasheet, pinout, applications, or equivalent options, key selection criteria include system gate density, PLCC thermal profile, I/O voltage tolerance, and configuration mode support (serial PROM or parallel).

Technical Context

The XCS10-4PC84C implements configurable logic blocks (CLBs) with four-input LUTs and flip-flops, distributed RAM capability up to 128 bits per CLB, and dedicated carry logic for arithmetic functions. It supports IEEE 1149.1 JTAG boundary-scan testing and in-system programmability via serial configuration mode.

Configuration is performed through a 4-bit wide parallel interface or single-bit serial mode using external PROM. The device uses SRAM-based configuration memory, requiring external initialization at power-up, and supports 3.3 V or 5 V supply for core logic depending on speed grade and revision.

Key Specifications

Pinout & Package

84-pin Plastic Leaded Chip Carrier (PLCC) with J-lead profile, 0.05 inch pitch, and center power/ground pad for thermal dissipation. Pin 1 marked by corner notch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XCS10-4PC84C, the XCS10-5PC84C offers improved timing margin while maintaining pin and software compatibility, whereas the XCS20-4PC84C increases logic capacity without altering speed or package-both require no layout change but differ in synthesis resource utilization and timing analysis targets.

Availability

XCS10-4PC84C is available at Aetrix Electronics and suitable for industrial motion controllers, legacy bus adapters, test equipment pattern generators, and medical imaging signal preprocessors requiring stable component supply across extended product lifecycles.

Supply support for XCS10-4PC84C 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, inheriting its FPGA portfolio including the Spartan-XL family. AMD is a global semiconductor leader focused on adaptive computing solutions.

The Spartan-XL family was designed for cost-sensitive, high-volume embedded applications requiring moderate logic density, low power, and industrial temperature operation-targeting control, interface, and signal preprocessing roles.

FAQ

What is the maximum operating frequency supported by the XCS10-4PC84C?

The XCS10-4PC84C achieves a worst-case input-to-output delay of 4.5 ns, enabling reliable operation in clock domains up to approximately 150 MHz for critical paths. Actual system frequency depends on logic depth, routing congestion, and I/O timing constraints. The XCS10-4PC84C does not specify a fixed maximum clock frequency due to architecture-dependent timing closure, but designs targeting 100–125 MHz are routinely implemented with standard place-and-route flows.

Does the XCS10-4PC84C support in-system programming?

Yes, the XCS10-4PC84C supports in-system programming via its JTAG port (IEEE 1149.1) and serial configuration mode. Configuration data can be loaded from an external serial PROM or through a host processor using the boundary-scan interface. The XCS10-4PC84C retains no configuration state after power loss and requires reinitialization at each power-up.

What is the I/O voltage compatibility of the XCS10-4PC84C?

The XCS10-4PC84C supports 3.3 V tolerant I/Os, compatible with LVTTL and LVCMOS33 signaling standards. It does not support 5 V-tolerant I/O operation unless explicitly specified in a different speed grade or revision. The XCS10-4PC84C requires separate VCCO supply for I/O banks, typically set to 3.3 V, while core voltage may vary by revision.

Is the XCS10-4PC84C pin-compatible with other Spartan-XL devices in PLCC-84 package?

Yes, all Spartan-XL devices in the 84-pin PLCC package-including XCS10-4PC84C, XCS10-5PC84C, and XCS20-4PC84C-share identical pinouts and package dimensions. This allows direct substitution within the same speed grade or gate count family without PCB modification, though timing and resource constraints must be re-verified in the target design.

What configuration memory options are supported by the XCS10-4PC84C?

The XCS10-4PC84C supports both serial and 4-bit wide parallel configuration modes. Serial mode uses a single data line and is compatible with industry-standard 1-Mbit serial PROMs. Parallel mode uses D0–D3 pins and enables faster configuration loading. The XCS10-4PC84C does not embed configuration memory and relies entirely on external non-volatile storage.