AMD XC3S1600E-4FGG400I

Overview

XC3S1600E-4FGG400I from AMD (formerly Xilinx) is a Spartan-3E family FPGA with 1,584 logic cells, 512 Kbits of block RAM, and 192 user I/Os in a 400-pin Fine-Pitch Ball Grid Array (FBGA) package. It operates at -4 speed grade and supports 3.3V/2.5V/1.2V mixed-voltage I/O banks for industrial control and embedded vision interface applications.

For engineers reviewing the XC3S1600E-4FGG400I datasheet, pinout, applications, or equivalent options, key selection factors include logic cell count, I/O voltage flexibility, embedded RAM capacity, and thermal performance in convection-cooled industrial enclosures.

Technical Context

The XC3S1600E-4FGG400I implements configurable logic blocks (CLBs) with dual 4-input LUTs and flip-flops per slice, distributed RAM up to 16 bits deep, and dedicated carry chains for arithmetic. It integrates eight Digital Clock Managers (DCMs) supporting phase shifting, frequency synthesis, and duty cycle correction.

I/O banks are independently configurable for LVCMOS, LVTTL, PCI, HSTL, and SSTL standards with programmable drive strength (2–24 mA), slew rate control, and on-chip termination (up to 150 Ω). Configuration is performed via Master Serial mode using external PROM or JTAG boundary-scan.

Key Specifications

Pinout & Package

XC3S1600E-4FGG400I is housed in a 400-pin Fine-Pitch Ball Grid Array (FBGA) package with 20×20 array, 0.8 mm pitch, and 17 mm × 17 mm body size. Thermal pad on underside requires solder paste stencil design for reliable heat dissipation in sustained operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC3S1600E-4FGG400I, the XC3S1000-4FGG400C offers lower cost and power but reduced logic and memory for simpler control tasks, while the XC3S2000-4FGG400I delivers headroom for feature-rich embedded vision or communications functions without changing PCB layout.

Availability

XC3S1600E-4FGG400I is available at Aetrix Electronics and suitable for industrial automation, medical imaging subsystems, and avionics data concentrators requiring stable component supply across extended product lifecycles.

Supply support for XC3S1600E-4FGG400I 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 maintains the Spartan-3E product line for legacy industrial and aerospace applications requiring long-term availability and proven reliability.

The Spartan-3E family was designed for cost-effective, low-power FPGA implementations in space-constrained embedded systems where reconfigurable logic replaces ASICs or microcontrollers with fixed peripherals.

FAQ

What is the maximum operating junction temperature for XC3S1600E-4FGG400I?

The XC3S1600E-4FGG400I has a maximum junction temperature of 100°C under industrial temperature grade (-40°C to +100°C ambient). Thermal design must ensure case-to-ambient resistance remains ≤15°C/W using appropriate PCB copper area and optional heatsink attachment to the thermal pad on the package underside. The XC3S1600E-4FGG400I datasheet specifies derating curves for sustained operation above 85°C ambient.

Does XC3S1600E-4FGG400I support JTAG boundary-scan for in-circuit testing?

Yes, XC3S1600E-4FGG400I fully supports IEEE 1149.1 JTAG boundary-scan with TCK, TMS, TDI, TDO, and TRST pins assigned to dedicated balls. It enables pre- and post-configuration testing of PCB interconnects and facilitates programming via standard JTAG adapters. The XC3S1600E-4FGG400I implements mandatory boundary-scan instructions including SAMPLE/PRELOAD, EXTEST, and IDCODE.

Can XC3S1600E-4FGG400I be configured using SPI flash memory?

No, XC3S1600E-4FGG400I does not support native SPI master configuration mode. It requires Master Serial mode with XCFxx Platform Flash PROMs or JTAG programming. External SPI flash can be interfaced via user logic after configuration, but boot loading directly from SPI is not supported. The XC3S1600E-4FGG400I configuration architecture mandates serial PROMs compatible with Xilinx's proprietary bitstream format and timing.

What I/O standards are supported by XC3S1600E-4FGG400I's SelectIO pins?

XC3S1600E-4FGG400I supports LVCMOS (1.2V, 1.5V, 1.8V, 2.5V, 3.3V), LVTTL, PCI, HSTL Class I/II, and SSTL2 Class I/II standards across its 192 user I/Os. Each of the 12 I/O banks is independently configurable for voltage and standard. The XC3S1600E-4FGG400I datasheet defines DC characteristics and timing parameters for each supported standard under specified load and temperature conditions.

Is XC3S1600E-4FGG400I pin-compatible with other Spartan-3E devices in the FGG400 package?

XC3S1600E-4FGG400I is pin-compatible with other Spartan-3E FGG400-packaged devices (e.g., XC3S500E, XC3S1000, XC3S2000) only for shared I/O and power balls; configuration, JTAG, and dedicated clock pins are consistent across the family. However, logic cell count, block RAM, and multiplier resources differ, so functional compatibility requires design verification. The XC3S1600E-4FGG400I pinout matches the FGG400 mechanical footprint but not necessarily all electrical or timing behaviors of smaller or larger variants.