AMD XC6SLX16-2FT256C

Overview

XC6SLX16-2FT256C from AMD (formerly Xilinx) is a Spartan-6 FPGA featuring 14,579 logic cells, 18 Kbits of block RAM, and 108 user I/O pins in a 256-pin FTBGA package. It supports LVCMOS/LVTTL, SSTL, and HSTL I/O standards with differential signaling capability and operates at -2 speed grade (1.2 V core voltage). It is used in industrial control logic, embedded vision preprocessing, and low-power communication interface bridging.

For engineers reviewing the XC6SLX16-2FT256C datasheet, pinout, applications, or equivalent options, key selection criteria include logic density, I/O voltage flexibility, embedded memory resources, and support for DDR2/DDR3 memory interfaces in cost-sensitive, space-constrained designs.

Technical Context

The XC6SLX16-2FT256C implements a hierarchical FPGA architecture with configurable logic blocks (CLBs), distributed RAM, shift registers, and dedicated DSP48A1 slices for arithmetic acceleration. It integrates six clock management tiles (CMTs) comprising DCMs and PLLs for jitter reduction and multi-phase clock synthesis.

It supports SelectIO technology with programmable drive strength, slew rate, and on-chip termination (up to 150 Ω), enabling reliable signal integrity across mixed-voltage I/O banks. Configuration is performed via SPI serial flash or JTAG, with dual-boot capability supported through external configuration memory.

Key Specifications

Pinout & Package

XC6SLX16-2FT256C is housed in a 256-pin Fine-Pitch Thin BGA (FTBGA) package with 1.0 mm ball pitch, 17 × 17 array, and 1.2 mm height. The package supports reflow soldering per IPC/JEDEC J-STD-020 and includes thermal pad for enhanced heat dissipation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar FPGA logic and I/O interface applications.

Compared with XC6SLX9-2FTG256C and XC6SLX25-2FTG256C, the XC6SLX16-2FT256C offers balanced logic density and memory for mid-complexity control and interface tasks, avoiding overdesign while retaining headroom for minor feature expansion.

Availability

XC6SLX16-2FT256C is available at Aetrix Electronics and suitable for industrial automation, embedded vision, and test equipment requiring stable component supply and long-term lifecycle support.

Supply support for XC6SLX16-2FT256C 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 continues development and support of the Spartan-6 FPGA family under the AMD Adaptive SoC portfolio.

The Spartan-6 family was designed for cost-sensitive, high-volume applications requiring flexible logic, robust I/O, and low-power operation - targeting industrial, automotive, and communications infrastructure markets.

FAQ

What is the maximum supported DDR2 memory interface speed for XC6SLX16-2FT256C?

The XC6SLX16-2FT256C supports DDR2 SDRAM interfaces up to 400 MHz data rates (800 Mbps) when operating at the -2 speed grade with proper board layout and termination. This capability is validated in Xilinx UG382 and applies directly to XC6SLX16-2FT256C's I/O banks configured for SSTL18_I.

Does XC6SLX16-2FT256C support JTAG boundary scan testing?

Yes, XC6SLX16-2FT256C fully supports IEEE 1149.1 JTAG boundary scan for PCB-level interconnect testing. The TDI, TDO, TMS, TCK, and TCK pins are dedicated and documented in the XC6SLX16-2FT256C pinout table, and BSDL files are provided by AMD for test vector generation.

Can XC6SLX16-2FT256C be configured using a serial NOR flash device?

Yes, XC6SLX16-2FT256C supports master SPI configuration mode with standard 4-wire serial NOR flash devices such as Spansion S25FL series. Configuration occurs automatically on power-up when MODE pins are set to 01, and the XC6SLX16-2FT256C drives the flash clock and reads the bitstream sequentially.

What thermal considerations apply to XC6SLX16-2FT256C in continuous operation?

XC6SLX16-2FT256C has a maximum junction temperature of 100°C and requires a PCB with at least two internal copper planes and thermal vias under the package. Thermal performance data in Xilinx DS162 specifies a θ_JA of 25.5°C/W for standard JEDEC 2-layer board conditions, applicable to XC6SLX16-2FT256C in its FTBGA-256 package.

Is XC6SLX16-2FT256C RoHS compliant and lead-free?

Yes, XC6SLX16-2FT256C is RoHS compliant and manufactured with lead-free (Pb-free) terminations per AMD specification DS162. The FTBGA-256 package uses matte tin finish on solder balls and meets JEDEC J-STD-020 moisture sensitivity level 3 (MSL3) requirements.