AMD XC4020E-1HQ240C

Overview

XC4020E-1HQ240C from Xilinx is a Field-Programmable Gate Array (FPGA) with 20,000 usable gates, 240-pin HQFP package, 128 I/O pins, and 5.5 ns maximum input-to-output delay. It implements synchronous digital logic in high-reliability industrial control and communications interface designs.

For engineers reviewing the XC4020E-1HQ240C datasheet, pinout, applications, or equivalent options, key selection criteria include gate count, I/O count, speed grade (-1), package thermal profile, and configuration memory compatibility.

Technical Context

The XC4020E-1HQ240C belongs to the Xilinx XC4000E FPGA family, built on 0.5 µm CMOS technology with configurable logic blocks (CLBs), input/output blocks (IOBs), and programmable interconnect. It supports SRAM-based configuration via serial or parallel mode using external PROMs.

It features dedicated carry logic for fast arithmetic, global clock routing, and three-state bus contention management. Configuration bitstream is volatile and requires re-loading at power-up.

Key Specifications

Pinout & Package

HQFP-240 package with 240 leads arranged in quad configuration, 0.5 mm pitch, exposed thermal pad, JEDEC MO-137 compliant. Thermal resistance θ_JA = 35°C/W under standard 2-layer board conditions.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC4020E-1HQ240C, the XC4013E-1HQ240C reduces logic capacity but lowers cost and power; the XC4025E-1HQ240C extends gate budget without altering pinout or timing behavior-enabling scalable design reuse.

Availability

XC4020E-1HQ240C is available at Aetrix Electronics and suitable for industrial motion control, telecom line card development, and medical imaging subsystems requiring stable component supply and long-term obsolescence management.

Supply support for XC4020E-1HQ240C 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 delivers programmable logic solutions for aerospace, industrial, and communications markets.

The XC4000E family was engineered for high-reliability, non-volatile-configurable logic in systems requiring field-upgradable functionality and deterministic timing behavior.

FAQ

What is the configuration method supported by the XC4020E-1HQ240C?

The XC4020E-1HQ240C supports both serial and parallel configuration modes using external PROMs. It loads its SRAM-based bitstream at power-up, requiring a nonvolatile memory device such as Xilinx XC18V00 series or compatible SPI/PROM. The XC4020E-1HQ240C does not include on-chip configuration storage.

Does the XC4020E-1HQ240C support JTAG boundary-scan testing?

Yes, the XC4020E-1HQ240C includes IEEE 1149.1-compliant JTAG TAP controller for boundary-scan testing and in-system programming. Pins TDI, TDO, TMS, and TCK are dedicated for this function and operate at 5 V logic levels consistent with the XC4020E-1HQ240C's I/O voltage specification.

What is the maximum operating temperature range for the XC4020E-1HQ240C?

The XC4020E-1HQ240C is rated for commercial temperature range (0°C to +70°C) as indicated by the "C" suffix in the part number. It is not qualified for extended or industrial temperature ranges; thermal derating is required above 70°C ambient.

Can the XC4020E-1HQ240C be used in new designs today?

The XC4020E-1HQ240C is a mature, discontinued FPGA product. While Aetrix Electronics maintains legacy inventory and offers lifecycle support, new designs should evaluate modern Xilinx 7-series or AMD Versal alternatives for long-term supply assurance and enhanced toolchain support. The XC4020E-1HQ240C remains viable for repair, replacement, and legacy system sustainment.

Is the XC4020E-1HQ240C pin-compatible with other XC4000E family members in HQFP-240?

Yes, all XC4000E family devices in the HQFP-240 package-including XC4005E, XC4010E, XC4013E, XC4020E, and XC4025E-share identical pinouts and footprint. This enables direct substitution within the same package variant, provided timing and logic resource requirements are met.