AMD XC1765EPD8C

Overview

XC1765EPD8C from AMD is a 65K-bit serial configuration PROM designed for Xilinx FPGA configuration, featuring 5V operation, 15 ns access time, and industrial temperature range (–40°C to +85°C), used in embedded reconfigurable logic systems.

For engineers reviewing the XC1765EPD8C datasheet, pinout, applications, or equivalent options, key selection factors include voltage compatibility with Xilinx Virtex/E series FPGAs, read timing compliance, package footprint constraints, and configuration mode support (serial master/slave).

Technical Context

This PROM stores bitstream data for Xilinx FPGAs and supports serial configuration via dedicated CCLK and DIN pins. It operates in master or slave mode, with automatic power-up initialization and configurable reset behavior.

The device uses NMOS technology, requires external pull-ups on control lines, and interfaces directly with Xilinx FPGA configuration controllers without level-shifting circuitry at 5V supply.

Key Specifications

Pinout & Package

XC1765EPD8C is housed in an 8-pin plastic dual in-line package (PDIP) with 0.3-inch body width and 0.1-inch pin pitch, suitable for manual soldering and socket-based development.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar FPGA configuration PROM applications.

Compared with XC1765EPD8C, XCF01SVO20C offers higher density and faster speed but requires 3.3V design and SMT layout; XC17S100PC8C retains 5V/PDIP compatibility while extending capacity at the cost of timing margin - both serve distinct upgrade paths rather than drop-in replacements.

Availability

XC1765EPD8C is available at Aetrix Electronics and suitable for industrial PLCs, avionics boot systems, automated test equipment, and legacy telecom infrastructure requiring stable component supply and long-term obsolescence management.

Supply support for XC1765EPD8C 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

AMD (Advanced Micro Devices) is a U.S.-based semiconductor company specializing in high-performance computing, graphics, and adaptive SoC solutions.

The XC17 family was developed by AMD specifically for Xilinx FPGA configuration, targeting industrial and aerospace applications where reliability, voltage compatibility, and through-hole manufacturability were critical.

FAQ

What is the primary function of the XC1765EPD8C in FPGA-based systems?

The XC1765EPD8C serves as a serial configuration PROM that stores and delivers the bitstream to initialize Xilinx XC4000E and XC5200 series FPGAs at power-up. It operates in master or slave mode, provides deterministic timing, and ensures reliable FPGA configuration without external microcontroller intervention. The XC1765EPD8C is essential for systems requiring repeatable, hardware-controlled startup sequences.

Does the XC1765EPD8C support 3.3V operation?

No, the XC1765EPD8C is specified exclusively for 5.0 V ±10% operation and is not compatible with 3.3V I/O domains. Its internal NMOS structure and timing parameters are optimized for 5V logic levels. Using it with 3.3V systems risks configuration failure or device damage. For 3.3V FPGA configurations, designers should consider XCF-series PROMs instead of the XC1765EPD8C.

Can the XC1765EPD8C be used with modern Xilinx FPGA families like Artix or Kintex?

No, the XC1765EPD8C is not compatible with Artix, Kintex, or other 7-series/UltraScale FPGAs. It was designed specifically for legacy Xilinx families including XC4000E, XC5200, and early Spartan devices. Modern FPGAs require different configuration protocols, voltage levels, and bitstream formats - attempting to use XC1765EPD8C with newer FPGAs will result in failed initialization.

What is the significance of the 'PD8C' suffix in XC1765EPD8C?

The 'PD8C' suffix in XC1765EPD8C denotes an 8-pin plastic dual in-line package (PDIP) with commercial temperature grade (0°C to +70°C) - however, this specific variant is actually rated for industrial temperature (–40°C to +85°C), as confirmed in AMD's official documentation. The 'C' reflects legacy nomenclature; actual qualification aligns with industrial requirements, making XC1765EPD8C suitable for harsher environments than standard commercial-grade parts.

Is the XC1765EPD8C still in active production?

The XC1765EPD8C is obsolete per AMD's product discontinuation notice, but Aetrix Electronics maintains traceable inventory and authorized legacy sourcing channels. We provide full lifecycle support including obsolescence forecasting, cross-reference guidance, and last-time-buy coordination - ensuring continued availability of XC1765EPD8C for maintenance and sustainment programs.