The XC1765EPC20I is a high-reliability, industrial-grade serial configuration PROM manufactured by AMD (formerly Xilinx). This one-time programmable (OTP) memory device is specifically engineered to store configuration bitstreams for Xilinx FPGA devices, delivering exceptional performance in demanding industrial environments with an extended operating temperature range of -40°C to +85°C.

XC1765EPC20I Product Overview

The XC1765EPC20I belongs to the XC1700E family of serial configuration PROMs, providing a cost-effective and reliable solution for FPGA configuration storage. With its 65,536-bit (64Kbit) memory capacity, this device is perfectly suited for configuring smaller Xilinx FPGA devices in applications requiring high reliability and extended temperature operation.

Why Choose XC1765EPC20I for Your FPGA Design?

The XC1765EPC20I configuration PROM offers significant advantages for embedded systems designers. Its simple serial interface requires only one user I/O pin from the FPGA, minimizing board complexity while ensuring reliable automatic configuration at power-up. The industrial temperature rating makes it ideal for harsh environment applications where standard commercial-grade components would fail.

XC1765EPC20I Technical Specifications

XC1765EPC20I Electrical Characteristics

XC1765EPC20I Key Features and Benefits

One-Time Programmable Configuration Memory

The XC1765EPC20I utilizes OTP (One-Time Programmable) technology, ensuring that once programmed, the configuration data cannot be altered or corrupted. This provides enhanced security for intellectual property protection and guarantees reliable, consistent FPGA configuration throughout the product lifecycle.

Industrial Temperature Performance

Operating from -40°C to +85°C, the XC1765EPC20I meets industrial temperature requirements for applications in automotive, aerospace, industrial automation, and outdoor telecommunications equipment. The robust design ensures reliable operation even in extreme environmental conditions.

Simple Serial Interface Design

The XC1765EPC20I features a straightforward serial interface that simplifies PCB design and reduces component count. Key interface signals include:

Cascadable Architecture for Larger Configurations

Multiple XC1765EPC20I devices can be cascaded to support larger FPGA configuration bitstreams or multiple FPGA configurations. The CEO (Chip Enable Output) pin automatically enables the next device in the chain after the current PROM reaches its terminal count, enabling seamless configuration of complex FPGA systems.

XC1765EPC20I Compatible FPGA Families

The XC1765EPC20I configuration PROM is compatible with various Xilinx FPGA families using Master Serial or Slave Serial configuration modes:

XC1765EPC20I Application Areas

Industrial Automation Systems

The XC1765EPC20I is widely deployed in industrial automation equipment, including programmable logic controllers (PLCs), motor drives, and process control systems. Its industrial temperature rating ensures reliable operation in factory environments with varying temperature conditions.

Telecommunications Equipment

Telecommunications infrastructure equipment, base stations, and network switches utilize the XC1765EPC20I for FPGA configuration storage. The guaranteed 20-year data retention ensures long-term reliability for deployed equipment.

Automotive Electronics

Automotive applications benefit from the extended temperature range and high reliability of the XC1765EPC20I. Engine control units, infotainment systems, and advanced driver assistance systems (ADAS) can incorporate this device for FPGA configuration.

Military and Aerospace Systems

Defense and aerospace applications requiring ruggedized components find the XC1765EPC20I an excellent choice for FPGA configuration storage in harsh environments where commercial-grade components would not survive.

XC1765EPC20I Package Information

PLCC-20 Package Dimensions

XC1765EPC20I Pin Configuration

The PLCC-20 package provides optimal pin spacing for manual assembly and automated pick-and-place equipment. The package supports both through-hole socket mounting and surface-mount PLCC solder pads, offering flexibility in manufacturing processes.

XC1765EPC20I Ordering Information

Part Number Decoder

Understanding the XC1765EPC20I part number structure:

XC1765EPC20I Design Considerations

Power Supply Requirements

Ensure stable 5V power supply with adequate decoupling capacitors (0.1µF ceramic recommended) placed close to the VCC and GND pins. The VPP pin must be connected to VCC during normal operation; leaving it floating may cause unpredictable behavior.

Configuration Interface Design

When designing the FPGA configuration interface with the XC1765EPC20I, connect the DATA output directly to the FPGA DIN pin. In Master Serial mode, the FPGA generates the configuration clock (CCLK), which drives the PROM CLK input. Proper signal integrity practices should be followed for reliable high-speed configuration.

Programming Support

The XC1765EPC20I is supported by major PROM programmers including Data I/O, BP Microsystems, and Xilinx-compatible third-party programmers. Configuration bitstreams are generated using Xilinx ISE Design Suite or compatible development software in standard Intel HEX or MCS format.

XC1765EPC20I Quality and Reliability

The XC1765EPC20I undergoes rigorous quality testing to ensure reliable performance:

Conclusion

The XC1765EPC20I serial configuration PROM delivers the perfect combination of reliability, performance, and ease of use for industrial FPGA applications. With its 65,536-bit storage capacity, industrial temperature rating, and simple serial interface, this device ensures dependable FPGA configuration in the most demanding environments. Whether you are designing industrial automation systems, telecommunications equipment, or ruggedized electronics, the XC1765EPC20I provides the configuration memory solution you need.

For comprehensive FPGA design resources, documentation, and technical support, engineers can access complete development tools through the AMD (Xilinx) design portal. The proven reliability and long-term availability of the XC1765EPC20I make it an excellent choice for new designs requiring guaranteed configuration storage performance.