AMD XC17S15APD8I

Overview

XC17S15APD8I from AMD is a serial PROM configuration memory device for Spartan-2 FPGAs, supporting 3.3 V I/O voltage, 15 ns access time, and 8-pin PDIP package. It stores FPGA bitstreams and enables power-on configuration in industrial control and test equipment.

For engineers reviewing the XC17S15APD8I datasheet, pinout, applications, or equivalent options, key considerations include VCC tolerance, read cycle timing, data retention lifetime, and compatibility with Xilinx Spartan-2 family configuration protocols.

Technical Context

This PROM operates in master serial mode to load configuration data into Spartan-2 FPGAs via the dedicated DIN pin. It uses CMOS technology with TTL-compatible inputs and supports both active-high CE and OE controls.

Timing is defined by tACC (15 ns max), tCE (15 ns max), and tOE (10 ns max); data is retained for 20 years at 25°C. The device requires no external programming voltage - programming is performed via standard 3.3 V supply.

Key Specifications

Pinout & Package

8-pin plastic dual in-line package (PDIP) with 0.3-inch body width and 0.1-inch pin pitch. RoHS-compliant lead finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XCF01SVO20C and AT17LV010-10JU, XC17S15APD8I uniquely provides PDIP packaging, 15 ns timing matched to Spartan-2 startup specs, and zero external components for 3.3 V-only operation - making it optimal for legacy industrial hardware upgrades.

Availability

XC17S15APD8I is available at Aetrix Electronics and suitable for industrial control, automated test equipment, and embedded motion control applications requiring stable component supply and long-lifecycle support.

Supply support for XC17S15APD8I 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 Xilinx in 2022) designs programmable logic and adaptive computing solutions for high-performance embedded and datacenter applications.

The XC17Sxx series was originally developed by Xilinx to provide dedicated, low-pin-count configuration memory for Spartan FPGAs - emphasizing reliability, ease of integration, and industrial temperature operation.

FAQ

Is XC17S15APD8I compatible with Spartan-2 XC2S15 FPGAs?

Yes, XC17S15APD8I is specifically designed for Spartan-2 FPGAs including the XC2S15. Its 1 Mbit capacity, 3.3 V I/O interface, and master serial timing parameters align directly with the XC2S15 configuration protocol requirements. The XC17S15APD8I datasheet confirms electrical and functional compatibility with this FPGA family.

What is the maximum clock frequency supported during XC17S15APD8I read operations?

The XC17S15APD8I does not operate synchronously with an external clock during read; it responds to CE and OE control edges. Its 15 ns access time corresponds to a maximum effective read rate of approximately 66 MHz under ideal conditions, but actual configuration speed is governed by the Spartan-2 FPGA's internal CCLK timing, not the PROM's standalone speed.

Can XC17S15APD8I be reprogrammed in-circuit?

No, XC17S15APD8I is a one-time programmable (OTP) PROM. Programming requires a dedicated PROM programmer prior to soldering. Once programmed, the bitstream cannot be altered in-system - unlike XCF or Platform Flash devices which support JTAG or ISP.

Does XC17S15APD8I require external pull-up resistors on its control pins?

No, XC17S15APD8I has internal pull-down resistors on CE and OE pins. External pull-ups are not required for basic master serial configuration. However, if used in systems with long traces or noise-sensitive environments, small external pull-downs may improve noise immunity - per Xilinx UG071 guidelines for Spartan-2 configuration.

What is the endurance specification for XC17S15APD8I write cycles?

XC17S15APD8I is a one-time programmable device with zero write endurance - it supports exactly one programming event. Endurance is not specified in the datasheet because the fuse-based architecture permanently sets memory cells during initial programming. Subsequent attempts to reprogram will fail and may damage the device.