AMD XC4020XL-2PQ208C

Overview

XC4020XL-2PQ208C from Xilinx is a Field-Programmable Gate Array (FPGA) with 20,000 system gates, 208-pin Plastic Quad Flat Pack (PQFP) package, -2 speed grade, and commercial temperature range (0°C to 70°C). It implements synchronous logic in digital signal processing, industrial control, and communications interface functions.

For engineers reviewing the XC4020XL-2PQ208C datasheet, pinout, applications, or equivalent options, key selection criteria include gate count, I/O count, speed grade, package thermal profile, and configuration memory compatibility.

Technical Context

The XC4020XL-2PQ208C uses Xilinx's second-generation FPGA architecture with configurable logic blocks (CLBs), input/output blocks (IOBs), and interconnect resources. It supports SRAM-based configuration via JTAG or serial PROM and includes dedicated carry logic for arithmetic operations.

It operates at 3.3 V core voltage with 5 V-tolerant I/Os, supports IEEE 1149.1 boundary-scan testing, and features programmable slew-rate control on output drivers to reduce EMI in high-speed designs.

Key Specifications

Pinout & Package

PQ208 package: 208-pin plastic quad flat pack with gull-wing leads, JEDEC MS-026 compliant, 28 mm × 28 mm body size, 3.2 mm height, and moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC4020XL-2PQ208C, the XC4013XL-2PQ208C offers lower cost but reduced logic capacity, while the XC4025XL-2PQ208C provides headroom for feature expansion without changing PCB layout or thermal design.

Availability

XC4020XL-2PQ208C is available at Aetrix Electronics and suitable for industrial motion control, medical imaging interface, telecom line card, and test equipment pattern generator applications requiring stable component supply and long-term obsolescence management.

Supply support for XC4020XL-2PQ208C 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 XC4000XL family was designed for low-power, high-density logic replacement in cost-sensitive embedded systems where reconfigurability and rapid prototyping are essential.

FAQ

What is the maximum operating frequency supported by the XC4020XL-2PQ208C?

The XC4020XL-2PQ208C has a -2 speed grade, specifying a maximum CLB-to-CLB propagation delay of 2.0 ns. This enables internal clock domains up to 500 MHz in optimized designs, though actual system frequency depends on routing, logic depth, and I/O timing constraints. The XC4020XL-2PQ208C does not guarantee fixed-frequency operation across all configurations.

Does the XC4020XL-2PQ208C support in-system programming?

Yes, the XC4020XL-2PQ208C supports in-system programming via its IEEE 1149.1 JTAG interface. Configuration data can be loaded through the TDI/TDO pins without removing the device from the board. The XC4020XL-2PQ208C requires an external configuration PROM or host controller to retain bitstream after power cycle.

What voltage levels are compatible with the I/O banks of the XC4020XL-2PQ208C?

The XC4020XL-2PQ208C features 5 V-tolerant I/Os operating at 3.3 V core voltage. Its IOBs accept input signals up to 5.5 V and drive outputs compatible with LVTTL and LVCMOS standards. The XC4020XL-2PQ208C does not support mixed-voltage I/O banks - all I/Os share the same VCCO reference per bank group.

Is the XC4020XL-2PQ208C pin-compatible with other XC4000XL family members in PQ208 packaging?

Yes, the XC4020XL-2PQ208C shares identical pinout and package dimensions with other XC4000XL devices in the PQ208 variant, including XC4013XL-2PQ208C and XC4025XL-2PQ208C. This allows direct substitution within the same speed grade and voltage configuration, provided logic resource requirements are met.

What configuration modes does the XC4020XL-2PQ208C support?

The XC4020XL-2PQ208C supports master serial, slave serial, and JTAG configuration modes. In master serial mode, it drives a serial PROM; in slave serial mode, an external controller clocks configuration data in. The XC4020XL-2PQ208C also supports boundary-scan configuration through the TAP controller per IEEE 1149.1.