XC17S40PD8C

Overview

The XC17S40PD8C is a one-time programmable (OTP) configuration PROM manufactured by AMD, designed specifically for storing configuration bitstreams for Spartan and Spartan-XL field-programmable gate arrays. This device utilizes a low-power CMOS floating-gate process to ensure reliable data retention. It operates within a voltage range of 4.5V to 5.5V and supports an industrial temperature range from -40°C to +85°C. The component provides 400kb of storage capacity and is housed in an 8-pin plastic dual in-line package (PDIP).

Feature Summary

• Configured as one-time programmable read-only memory for FPGA initialization.
• Features a simple interface requiring only one user I/O pin for operation.
• Supports programmable reset polarity options for flexible system design.

Applications

• Configuration of Spartan FPGA devices.
• Configuration of Spartan-XL FPGA devices.

Procurement Notes

Verify the specific suffix 'C' against official datasheets to confirm the industrial temperature grade (-40°C to +85°C), as generic listings may not distinguish it from commercial variants. Confirm RoHS compliance status, as older OTP families often lack modern environmental certifications. Ensure the 8-DIP package matches the target PCB footprint requirements before procurement.

Selection Notes

Select this component when configuring Spartan or Spartan-XL FPGAs using a cost-effective, single-chip solution. The 400kb capacity must be sufficient for the target bitstream size. Consider the 8-DIP package availability if through-hole assembly is required. Verify that the 5V supply voltage aligns with the system power rails.

Part Context

This part belongs to the XC17S00/XL family of configuration PROMs. These devices are engineered to provide a straightforward method for storing configuration data for Xilinx Spartan series FPGAs. They eliminate the need for complex external configuration controllers by integrating the necessary logic into a single OTP chip.

Replacement Considerations

Official substitutes include other members of the XC17S00/XL family, such as the XC17S40PD8I for industrial temperature ranges or XC17S40VP40 for different package types. Cross-referencing the exact density and package dimensions is essential when evaluating alternative sources.