AMD XC4VSX35-10FFG668I

Overview

XC4VSX35-10FFG668I from AMD is a Virtex-4 SX family FPGA with 34,560 logic cells, 2.5 Gbps RocketIO transceivers, and embedded PowerPC 405 processors. It features 352 I/O pins in a 668-pin Fine-Pitch Flip-Chip BGA package and targets high-performance digital signal processing and embedded computing applications.

For engineers reviewing the XC4VSX35-10FFG668I datasheet, pinout, applications, or equivalent options, key selection criteria include transceiver speed, embedded processor availability, I/O voltage support (1.2 V/1.5 V/1.8 V/2.5 V), and -10 speed grade timing performance.

Technical Context

The XC4VSX35-10FFG668I implements a hierarchical FPGA architecture with configurable logic blocks (CLBs), block RAM (2,088 kbits), and dedicated DSP48 slices for arithmetic-intensive tasks. Its dual-processor subsystem includes two PowerPC 405 cores with on-chip cache and PLB bus interface.

RocketIO transceivers support serial protocols including PCI Express Gen1 and Serial RapidIO at up to 2.5 Gbps per lane. The device uses SelectIO technology with programmable I/O standards and differential signaling support (LVDS, RSDS, HSTL).

Key Specifications

Pinout & Package

XC4VSX35-10FFG668I is housed in a 668-pin Fine-Pitch Flip-Chip Ball Grid Array (FFG) package with 352 user I/Os, 8 RocketIO transceiver pairs, dedicated configuration and JTAG pins, and multiple VCCINT/VCCAUX/VCCO power domains.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-performance embedded FPGA applications.

Compared with XC4VLX40-10FF668I and XC4VSX55-11FF668I, the XC4VSX35-10FFG668I uniquely balances embedded processing, transceiver bandwidth, and logic resources - making it optimal for tightly coupled control + signal processing workloads where both CPU and FPGA resources are concurrently utilized.

Availability

XC4VSX35-10FFG668I is available at Aetrix Electronics and suitable for radar signal processing, medical imaging backend, avionics data concentration, and industrial protocol gateway applications requiring stable component supply and long-term lifecycle support.

Supply support for XC4VSX35-10FFG668I 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 is a global semiconductor company focused on high-performance and adaptive computing solutions, with leadership in FPGA, AI acceleration, and data center technologies.

The Virtex-4 SX family was designed specifically for embedded computing applications requiring integrated processing, high-speed serial I/O, and reconfigurable logic - targeting aerospace, defense, and medical imaging systems.

FAQ

What is the maximum operating frequency of the PowerPC 405 cores in XC4VSX35-10FFG668I?

The XC4VSX35-10FFG668I supports PowerPC 405 core operation up to 500 MHz under typical conditions. This frequency is guaranteed by the -10 speed grade and validated across industrial temperature range (-40°C to +100°C). The actual achievable frequency depends on voltage scaling, thermal management, and configuration of on-chip caches and bus arbitration. XC4VSX35-10FFG668I documentation specifies this limit in the Processor Block Timing section of DS204.

Does XC4VSX35-10FFG668I support partial reconfiguration?

Yes, XC4VSX35-10FFG668I supports partial reconfiguration through its hierarchical bitstream architecture and dedicated configuration logic. This capability allows dynamic replacement of logic modules without resetting the entire device or halting PowerPC execution. Implementation requires Xilinx ISE 10.1 or later and adherence to floorplanning constraints. XC4VSX35-10FFG668I is explicitly listed in UG070 as supporting this feature.

What I/O standards are supported by XC4VSX35-10FFG668I?

XC4VSX35-10FFG668I supports LVCMOS, LVTTL, SSTL, HSTL, and differential standards including LVDS, RSDS, and BLVDS via its SelectIO technology. Each I/O bank operates independently at 1.2 V, 1.5 V, 1.8 V, or 2.5 V. XC4VSX35-10FFG668I does not support 3.3 V I/O in this package variant due to FFG668I's internal power architecture limitations.

Is XC4VSX35-10FFG668I pin-compatible with other Virtex-4 devices in the FFG668 package?

No, XC4VSX35-10FFG668I is not fully pin-compatible with other Virtex-4 families in the FFG668 package. While mechanical footprint and ball count match, I/O banking structure, power pin allocation, and transceiver pin assignments differ between SX, LX, and FX subfamilies. XC4VSX35-10FFG668I requires its specific pinout map (DS204 Table 2) and cannot be substituted without PCB redesign.

What configuration modes does XC4VSX35-10FFG668I support?

XC4VSX35-10FFG668I supports Master SelectMAP, Slave SelectMAP, Serial, and JTAG configuration modes. It also supports fallback and multi-boot via external SPI flash. Configuration is initiated by PROGRAM_B and monitored via INIT_B and DONE pins. XC4VSX35-10FFG668I implements dual-boot capability using two independent bitstreams stored in external memory, enabling fail-safe firmware updates.