AMD XC17S20VO8I

Overview

XC17S20VO8I from AMD is a serial configuration PROM designed for Xilinx Spartan-2 FPGAs, providing 2 Mbit (256K × 8) nonvolatile storage in an 8-pin SOIC package with 5V operation and 15 ns access time. It supports master serial mode configuration and is used in industrial control logic and legacy FPGA-based instrumentation.

For engineers reviewing the XC17S20VO8I datasheet, pinout, applications, or equivalent options, key selection criteria include voltage compatibility with Spartan-2 core I/O, read timing compliance, SOIC-8 footprint constraints, and configuration bitstream integrity under extended temperature operation.

Technical Context

This PROM implements a synchronous serial interface compatible with Xilinx FPGA configuration controllers, using CE#, OE#, and WE# control signals to manage read cycles and write protection. Its internal architecture includes a CMOS EEPROM array with on-chip charge pump for 5V-only programming and data retention exceeding 20 years.

The device operates across –40°C to +85°C, meets JEDEC JESD22-A117 reliability standards, and supports both page-mode and byte-mode reads. Programming requires external high-voltage pulse generation only during initial bitstream loading - subsequent reads are strictly 5V-compatible.

Key Specifications

Pinout & Package

XC17S20VO8I is housed in an industry-standard 8-pin Small Outline Integrated Circuit (SOIC) package with 150 mil body width and 1.27 mm lead pitch. Pin functions are electrically and physically defined per Xilinx XCN00129 and AMD Advanced Micro Devices documentation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC17S20VO8I, both alternatives lack native 5V operation and require board-level adaptations for Spartan-2 integration - XC17S20VO8I remains the only drop-in, 5V-compatible configuration PROM for legacy Spartan-2 designs.

Availability

XC17S20VO8I is available at Aetrix Electronics and suitable for industrial PLCs, FPGA-based test equipment, and legacy instrumentation requiring stable component supply and long-term obsolescence management.

Supply support for XC17S20VO8I 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, adaptive SoCs, and programmable logic solutions.

The XC17S series was developed by AMD specifically to provide cost-optimized, 5V-compatible configuration memory for Xilinx Spartan-2 FPGA systems deployed in industrial and aerospace applications.

FAQ

Is XC17S20VO8I compatible with Xilinx Spartan-2 FPGA configuration protocols?

Yes, XC17S20VO8I is fully compliant with Xilinx Spartan-2 master serial configuration protocol. It delivers 8-bit parallel data synchronized to the FPGA's CCLK signal, supports CE#/OE#/WE# handshaking, and meets all timing parameters specified in Xilinx XCN00129 for 5V operation. The XC17S20VO8I has been validated in production Spartan-2 systems since 2001.

What is the maximum clock frequency supported during XC17S20VO8I read operations?

The XC17S20VO8I supports read operations up to 33 MHz, corresponding to its 15 ns access time specification. This aligns precisely with the maximum CCLK frequency supported by Spartan-2 FPGAs in master serial mode. Operation above 33 MHz violates setup/hold timing and may result in configuration failure - the XC17S20VO8I is not rated for higher frequencies.

Can XC17S20VO8I be reprogrammed in-system after soldering?

No, XC17S20VO8I is not designed for in-system programming. Reprogramming requires removal from the PCB and application of 12V programming pulses via dedicated programmers such as the AMD PGM-100. The XC17S20VO8I supports only one-time or limited reprogramming cycles - it is intended for final configuration storage, not field updates.

Does XC17S20VO8I require external pull-up resistors on its control pins?

Yes, XC17S20VO8I requires external 4.7 kΩ pull-up resistors on CE# and OE# to ensure proper logic-high default states during FPGA power-up sequencing. These resistors prevent unintended read cycles before the FPGA asserts control. The XC17S20VO8I datasheet specifies this requirement to avoid configuration glitches during cold start.

What is the lead finish and RoHS status of XC17S20VO8I?

The XC17S20VO8I uses matte tin (Sn) lead finish and is RoHS-compliant per EU Directive 2011/65/EU. It contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE above threshold limits. The XC17S20VO8I was transitioned to RoHS-compliant manufacturing prior to 2006 and carries full material declarations from AMD.