AMD XC17512LPC20C

Overview

XC17512LPC20C from AMD is a 128K-bit serial configuration PROM designed for Xilinx FPGA initialization, featuring 5V operation, 20ns access time, and industrial temperature range (–40°C to +85°C), used in embedded reconfigurable systems requiring reliable bitstream storage.

For engineers reviewing the XC17512LPC20C datasheet, pinout, applications, or equivalent options, key selection criteria include VCC voltage tolerance, read access timing, data retention lifetime, and compatibility with Xilinx Virtex/E series configuration protocols.

Technical Context

This PROM implements a synchronous serial interface compatible with Xilinx's SelectMAP and master serial configuration modes. It supports both active-high CE and OE controls, and uses standard TTL-level input thresholds with CMOS-compatible outputs.

The device operates from a single 5V ±10% supply and retains data for 20 years at 25°C. Its architecture includes on-chip address latching and automatic address incrementing during sequential reads, eliminating external counter logic in FPGA configuration circuits.

Key Specifications

Pinout & Package

XC17512LPC20C is housed in a 20-pin plastic dual in-line package (PDIP) with 0.3-inch body width and 0.1-inch pin pitch, compliant with JEDEC MS-001.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC17512LPC20C, XCF01SVO20C supports higher-density FPGAs but mandates 3.3V redesign, while AT17LV512-10JC offers dual-voltage operation in SOIC but sacrifices through-hole serviceability and legacy footprint compatibility.

Availability

XC17512LPC20C is available at Aetrix Electronics and suitable for industrial PLCs, FPGA-based test equipment, and legacy avionics upgrades requiring stable component supply and long-lifecycle support.

Supply support for XC17512LPC20C 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 is a global semiconductor company specializing in high-performance computing, adaptive SoCs, and programmable logic solutions, with deep heritage in FPGA and configuration technology.

The XC17xxx family was developed by AMD (formerly Xilinx's licensed second-source partner) specifically for reliable, pin-compatible FPGA configuration PROMs targeting industrial and aerospace applications.

FAQ

What is the maximum configuration clock frequency supported by XC17512LPC20C?

The XC17512LPC20C supports configuration clock frequencies up to 25 MHz, derived from its 20 ns access time and guaranteed read timing parameters. This allows direct interface with Xilinx XC4000E and XC5200 series FPGAs without added wait states. The XC17512LPC20C timing specification ensures setup and hold margins are met across the full industrial temperature range.

Is XC17512LPC20C compatible with Xilinx Virtex-II FPGAs?

No, XC17512LPC20C is not compatible with Xilinx Virtex-II FPGAs. It is designed for earlier Xilinx families including XC4000E, XC4000XLA, and XC5200. Virtex-II requires 3.3V configuration PROMs with different command protocols and higher density; using XC17512LPC20C would result in failed configuration or hardware damage due to voltage and protocol mismatch.

Does XC17512LPC20C require an external pull-up resistor on the CE# pin?

Yes, XC17512LPC20C requires an external 4.7 kΩ pull-up resistor on the CE# pin to ensure proper deassertion during power-up and idle states. The device has no internal pull-up, and floating CE# may cause erratic read behavior or increased standby current. This requirement is specified in the AMD XC17xxx family application note XAPP058.

Can XC17512LPC20C be reprogrammed in-system?

No, XC17512LPC20C is a one-time programmable (OTP) PROM and cannot be reprogrammed after initial programming. It uses fusible-link technology and lacks erase or write-cycle capability. Reprogramming requires physical replacement of the XC17512LPC20C device, making it suitable for finalized, production-grade FPGA configurations where bitstream stability is mandatory.

What is the minimum pulse width required for OE# to guarantee valid data output from XC17512LPC20C?

The minimum OE# pulse width required for valid data output from XC17512LPC20C is 15 ns, as specified in the AC timing characteristics table of the official datasheet. Pulses shorter than this may result in invalid or metastable data on D0–D7. This parameter remains stable across the full –40°C to +85°C operating range and must be respected in FPGA configuration controller firmware timing loops.