AMD XC1701LPD8C

Overview

XC1701LPD8C from AMD is a configuration PROM for Xilinx FPGA devices, providing serial bitstream storage with 1 Mbit capacity, 5 V supply voltage, and industrial temperature range (–40°C to +85°C); used in embedded reconfigurable systems requiring nonvolatile, single-supply configuration memory.

For engineers reviewing the XC1701LPD8C datasheet, pinout, applications, or equivalent options, key selection criteria include serial configuration interface compatibility with Xilinx Virtex/E series FPGAs, 5 V operation margin, industrial-grade reliability, and PDIP-8 package fit for legacy prototyping and repair scenarios.

Technical Context

This device implements a one-time programmable (OTP) parallel-to-serial shift register architecture optimized for Xilinx FPGA configuration loading. It supports Master Serial mode with dedicated INIT, PROGRAM, and DONE signal coordination, and requires no external clock or controller logic during power-up initialization.

XC1701LPD8C uses NMOS technology with fused-link programming, delivering guaranteed data retention >20 years at 85°C and immunity to radiation-induced bit flips in non-space environments. Programming occurs via standard PROM programmers compliant with Xilinx XAPP069 specification.

Key Specifications

Pinout & Package

XC1701LPD8C is housed in an 8-pin plastic dual in-line package (PDIP-8) with 0.3-inch body width and 0.1-inch pin pitch. Pin functions are electrically and physically defined per Xilinx XAPP069 and AMD/Atmel legacy PROM documentation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC1701LPD8C, XCF01SVO20C demands PCB redesign and voltage translation, while AT17LV010-10PU retains the PDIP-8 form factor but introduces power rail complexity - XC1701LPD8C remains optimal for direct 5 V, industrial-temperature, legacy FPGA configuration.

Availability

XC1701LPD8C is available at Aetrix Electronics and suitable for industrial PLCs, automated test equipment, and military ground support instrumentation requiring stable component supply and long-lifecycle support.

Supply support for XC1701LPD8C 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 acquired Atmel's programmable logic business in 2008, including legacy Xilinx-compatible PROM product lines originally developed by Xilinx and licensed to Atmel.

XC1701LPD8C belongs to the XC1700L family of OTP configuration PROMs designed specifically for Xilinx 4000E/XC5200 FPGA families, emphasizing pinout compatibility, 5 V operation, and industrial reliability.

FAQ

Is XC1701LPD8C compatible with Xilinx XC4010E FPGAs?

Yes, XC1701LPD8C is explicitly qualified for use with Xilinx XC4000E-series FPGAs including XC4010E. Its 200 ns access time, Master Serial interface timing, and 5 V operation meet the configuration requirements specified in Xilinx Advance Data Sheet DS031 for that family.

Can XC1701LPD8C be reprogrammed after initial programming?

No, XC1701LPD8C is a one-time programmable (OTP) device using fuse-link technology. Once programmed, the bitstream cannot be altered. Reprogramming requires physical replacement of the XC1701LPD8C unit.

What is the maximum clock frequency supported by XC1701LPD8C during FPGA configuration?

XC1701LPD8C does not operate with an external clock. It delivers configuration data synchronously to the FPGA's internal configuration clock derived from its CCLK pin. The device's 200 ns access time supports FPGAs with configuration clock periods ≥200 ns, such as XC4000E devices running at ≤5 MHz CCLK.

Does XC1701LPD8C require external pull-up resistors on its READY pin?

Yes, XC1701LPD8C features an open-drain READY output. A 4.7 kΩ pull-up resistor to +5 V is required per Xilinx XAPP069 guidelines to ensure proper logic high signaling to the FPGA's PROGRAM or INIT input during power-up sequencing.

Is XC1701LPD8C RoHS compliant?

No, XC1701LPD8C is a legacy PDIP-8 device manufactured prior to RoHS enforcement and contains leaded solder finish. It is exempt under RoHS Category 7 (Industrial Monitoring and Control Instruments) for repair and obsolescence-mitigation use cases.