AMD XC4005E-3PQ208I

Overview

XC4005E-3PQ208I from Xilinx is a Field-Programmable Gate Array (FPGA) with 5,000 usable gates, 208-pin PQFP package, -3 speed grade (12.5 ns CLB propagation delay), and industrial temperature range (-40°C to +100°C). It implements synchronous digital logic in embedded control, protocol bridging, and interface adaptation applications.

For engineers reviewing the XC4005E-3PQ208I datasheet, pinout, applications, or equivalent options, key selection factors include gate count, I/O count (168 user I/Os), speed grade timing, PQFP thermal and routing constraints, and legacy 5V CMOS compatibility.

Technical Context

The XC4005E-3PQ208I belongs to Xilinx's XC4000E FPGA family, built on 0.5 µm CMOS technology with configurable logic blocks (CLBs), input/output blocks (IOBs), and interconnect resources. It supports SRAM-based configuration via external PROM or microprocessor download.

It operates at 5V supply, uses dedicated global clock and reset networks, and supports mixed-signal interfacing through configurable I/O standards including LVTTL and TTL. Configuration is volatile and requires external memory for power-up loading.

Key Specifications

Pinout & Package

PQFP-208 package: 28 × 28 mm body, 0.5 mm lead pitch, gull-wing leads, JEDEC MS-026 compliant. Thermal pad not present; board-level heat dissipation relies on copper area under package body.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC4005E-3PQ208I, the -4PQ208I trades 2.5 ns of CLB delay for potential cost savings, while the -3PQ160I reduces I/O count and package size at the expense of interface scalability - both require no logic redesign but may need PCB layout revision.

Availability

XC4005E-3PQ208I is available at Aetrix Electronics and suitable for industrial motion control, legacy bus interface adaptation, and avionics signal conditioning applications requiring stable component supply and long-term lifecycle support.

Supply support for XC4005E-3PQ208I 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

Xilinx, now part of AMD, pioneered commercial FPGA technology and developed scalable programmable logic architectures for high-reliability systems.

The XC4000E family was designed for cost-sensitive, medium-complexity digital logic replacement in industrial and aerospace applications requiring 5V operation and predictable timing.

FAQ

What is the maximum operating frequency supported by the XC4005E-3PQ208I?

The XC4005E-3PQ208I has a -3 speed grade specifying 12.5 ns CLB propagation delay. Its maximum system clock frequency depends on design topology, but typical synchronous logic paths achieve 60–80 MHz. The actual achievable frequency must be verified per design using Xilinx Foundation or Alliance software timing analysis tools. XC4005E-3PQ208I does not guarantee fixed-frequency operation independent of routing and logic depth.

Does the XC4005E-3PQ208I support in-system programming (ISP)?

No, the XC4005E-3PQ208I does not support in-system programming. It uses SRAM-based configuration that is volatile and requires external configuration memory (e.g., Xilinx XC18V00 series PROM) or microprocessor-controlled serial loading at power-up. XC4005E-3PQ208I lacks JTAG boundary-scan or ISP-capable interfaces defined in later FPGA families.

What are the power supply requirements for the XC4005E-3PQ208I?

The XC4005E-3PQ208I requires a single 5.0 V ±5% supply applied to V_CC pins. Total supply current depends on toggle rate and active CLB count, ranging from ~100 mA (static) to ~500 mA (fully active). Decoupling with 0.1 µF ceramic capacitors near each V_CC/GND pair is mandatory. XC4005E-3PQ208I has no auxiliary or I/O voltage rails.

Is the XC4005E-3PQ208I pin-compatible with other XC4000E devices in PQFP-208 packages?

Yes, all XC4000E family members in the PQFP-208 package - including XC4003E, XC4004E, XC4005E, and XC4006E - share identical pinouts and I/O banking. XC4005E-3PQ208I can be substituted with higher- or lower-gate variants without PCB changes, provided configuration bitstream and timing constraints are updated accordingly.

What documentation is required to configure the XC4005E-3PQ208I?

Configuration of XC4005E-3PQ208I requires the Xilinx Foundation Series or Alliance Series software to generate a .bit file, plus hardware such as a Xilinx Parallel Cable or microprocessor-based loader. The XC4005E-3PQ208I datasheet (DS001-4), pinout guide, and application note XAPP052 cover timing, configuration modes, and PCB layout. XC4005E-3PQ208I does not support JTAG configuration.