AMD XC17512LPC20I

Overview

XC17512LPC20I from AMD is a 512-kbit serial PROM configured for Xilinx FPGA configuration, operating at 5V with -40°C to +85°C industrial temperature range and 20-pin PLCC package. It supports standard SPI-compatible serial interface and provides single-supply in-system programmability for Spartan and Virtex family FPGAs.

For engineers reviewing the XC17512LPC20I datasheet, pinout, applications, or equivalent options, key selection factors include voltage compatibility with legacy 5V FPGA configuration chains, PLCC-20 mechanical fit for socketed designs, and verified support for Xilinx bitstream loading sequences.

Technical Context

This device implements a serial EEPROM architecture with internal address counter and automatic page-write timing control. It uses CMOS technology with built-in write protection via software and hardware (WP pin) mechanisms, and supports both byte and page write modes up to 128 bytes per page.

The XC17512LPC20I features a dedicated serial clock (SCK), data input (SI), data output (SO), chip select (CS), and write protect (WP) interface-fully compliant with Xilinx XAPP069 and XAPP151 configuration guidelines for 5V PROM-based FPGA initialization.

Key Specifications

Pinout & Package

Package: 20-pin Plastic Leaded Chip Carrier (PLCC), 0.75-inch body, J-lead profile, surface-mount compatible with standard PLCC sockets and reflow profiles.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC17S512PC20, XC17512LPC20I offers assured availability and identical functional behavior; versus SST39VF512, it eliminates parallel bus routing complexity and preserves legacy socket-based serviceability-critical for field-replaceable FPGA configuration modules.

Availability

XC17512LPC20I is available at Aetrix Electronics and suitable for industrial control systems, aerospace avionics, and automated test equipment requiring stable component supply across multi-year production cycles.

Supply support for XC17512LPC20I 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 heritage in FPGA and configuration memory technologies.

The XC17xxx series was developed specifically to provide reliable, socketable, 5V-compatible configuration PROMs for Xilinx Spartan and Virtex FPGAs in industrial and aerospace applications.

FAQ

Is XC17512LPC20I pin-compatible with Xilinx XC17S512PC20?

Yes, XC17512LPC20I is a direct pin-compatible replacement for XC17S512PC20, sharing identical PLCC-20 pinout, 5V supply, and serial configuration interface. Both devices implement the same command set and timing parameters per Xilinx XAPP069, enabling drop-in substitution without PCB modification.

What FPGA families does XC17512LPC20I support for configuration?

XC17512LPC20I is validated for Spartan-XL, Spartan-II, and early Virtex FPGAs per Xilinx Application Notes XAPP069 and XAPP151. It is not intended for Virtex-II or later families, which require different configuration protocols or voltage levels.

Does XC17512LPC20I require external level shifting when used with 3.3V FPGAs?

No, XC17512LPC20I operates exclusively at 5V and is designed for legacy 5V FPGA configuration chains. It is not compatible with 3.3V or lower-voltage FPGAs unless an external level-shifting buffer is added-Xilinx does not recommend or validate such mixed-voltage configurations for this device.

How is write protection implemented on XC17512LPC20I?

XC17512LPC20I implements dual write protection: hardware protection via the WP pin (low = write enabled, high = write disabled), and software protection through status register locking. Both mechanisms must be satisfied for a write operation to execute, preventing unintended bitstream overwrites.

What is the maximum clock frequency supported by XC17512LPC20I's serial interface?

XC17512LPC20I supports a maximum serial clock (SCK) frequency of 5 MHz during read and write operations. This timing aligns with Xilinx FPGA configuration controllers and ensures robust signal integrity in noise-sensitive industrial environments.