XC4020XL-3HT176I

The XC4020XL-3HT176I is an AMD XC4000E/X-series FPGA supplied in a 176-LQFP exposed pad package for surface-mount assembly. It provides a mid-density FPGA fabric with a combination of configurable logic resources, on-chip RAM, and a substantial I/O count targeted at industrial applications.

With support for a 3.0–3.6 V supply range and an operating temperature range of −40 °C to 100 °C, this device is specified for industrial-grade designs that require moderate logic capacity, on-chip memory, and flexible I/O integration.

Key Features

• Core Logic 784 CLBs and 1,862 logic elements provide a mid-density programmable fabric for implementing combinational and sequential logic functions.
• Embedded Memory 25,088 bits of on-chip RAM (approximately 0.025 Mbits) for small buffers, FIFOs, and register files directly inside the FPGA.
• I/O and Gate Count 145 user I/O pins and an estimated 20,000 gates for interfacing with peripherals and implementing glue-logic or protocol handling.
• Power and Temperature Operates from 3.0 V to 3.6 V and is rated for −40 °C to 100 °C operation, supporting deployment in industrial environments.
• Package and Mounting 176-LQFP exposed pad package (supplier device package listed as 176-TQFP 24×24) with surface-mount mounting for compact PCB implementation and thermal management via exposed pad.
• Compliance RoHS compliant for environmentally conscious manufacturing and regulatory alignment.

Typical Applications

• Industrial Control Implements medium-complexity control logic, I/O aggregation, and timing-critical functions using the device’s CLBs and 145 I/O pins.
• Embedded Glue Logic Replaces discrete logic for protocol translation and bus interfacing, leveraging the 20,000-gate capacity and flexible I/O configuration.
• Signal Conditioning and Buffering Uses on-chip RAM for small data buffers and FIFOs to improve throughput between sensors, ADCs, or peripheral devices.
• Prototyping and Custom Logic Supports development of custom state machines and logic blocks where a mid-density FPGA is appropriate for feature integration and iteration.

Unique Advantages

• Balanced Logic Density: 784 CLBs and 1,862 logic elements offer a middle ground between small CPLDs and larger FPGAs for cost-effective mid-range designs.
• On-Chip RAM Availability: 25,088 bits of embedded RAM enable localized buffering and low-latency data handling without external memory.
• High I/O Count: 145 user I/O pins allow direct interfacing to multiple peripherals and buses, reducing the need for external I/O expanders.
• Industrial Temperature Range: Rated from −40 °C to 100 °C to meet temperature requirements for many industrial deployments.
• Surface-Mount Package with Exposed Pad: 176-LQFP exposed pad simplifies PCB thermal management while maintaining a compact footprint.
• RoHS Compliant: Facilitates regulatory and environmental compliance in manufactured products.

Why Choose XC4020XL-3HT176I?

The XC4020XL-3HT176I positions itself as a mid-density, industrial-grade FPGA option that balances programmable logic capacity, on-chip memory, and substantial I/O in a compact 176-LQFP exposed pad package. Its electrical and thermal specifications make it suitable for industrial control, embedded glue logic, and prototype designs that require reliable operation across a wide temperature range.

Design teams seeking a cost-effective, RoHS-compliant FPGA with a moderate gate count and flexible I/O capability will find this device appropriate for applications where integration, predictable environmental performance, and straightforward PCB mounting are priorities.

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