AT17N256-10PI

Configuration PROMs For FPGAs Overview

The AT17N256-10PI is a 3.3V FPGA Configuration EEPROM providing 256-Kbit serial memory for storing configuration programs for Field Programmable Gate Arrays. It operates within an industrial temperature range of -40°C to +85°C and supports a maximum clock frequency of 10 MHz. The device utilizes a simple serial interface compatible with SRAM FPGAs in Master Serial Mode, featuring low-power CMOS technology with standby current consumption under 100 µA at 3.3V.

Configuration PROMs For FPGAs Feature Summary

• Designed specifically as a configurator for Field Programmable Gate Arrays (FPGAs) using a simple serial-access procedure.
• Pin-compatible with Xilinx XC17SXXXA and XC17SXXXXL PROMs, ensuring direct interchangeability in existing designs.
• Compatible with Xilinx Spartan-II, Spartan-IIE, and Spartan XL FPGAs when operating in Master Serial Mode.
• Utilizes a very low-power CMOS EEPROM process with high-reliability endurance and long data retention capabilities.

Configuration PROMs For FPGAs Applications

• Configuration of Xilinx Spartan-II FPGAs
• Configuration of Xilinx Spartan-IIE FPGAs
• Configuration of Xilinx Spartan XL FPGAs

Configuration PROMs For FPGAs Procurement Notes

Verify the component origin, as this part was originally manufactured by Atmel before acquisition by Microchip Technology. Confirm that the ordering suffix 'PI' correctly identifies the Industrial temperature grade (-40°C to +85°C) and the 8-lead PDIP package type. Ensure compatibility with the specific FPGA model intended for configuration via Master Serial Mode.

Configuration PROMs For FPGAs Selection Notes

Select this component for applications requiring pin-compatible replacement of legacy Xilinx OTP PROMs. It is suitable for systems utilizing Xilinx Spartan-series FPGAs that require automatic configuration upon power-up. Consider the industrial temperature rating if the environment exceeds commercial limits. Note that this series is generally not recommended for new designs due to availability of newer alternatives.

Configuration PROMs For FPGAs Part Context

The AT17N256-10PI belongs to the AT17N series of FPGA Configuration EEPROMs, which provide cost-effective memory solutions for programming SRAM-based FPGAs. This specific density variant offers 256-Kbit storage capacity. The series is characterized by its ability to interface directly with FPGA control signals without requiring an external intelligent controller for the configuration process.

Configuration PROMs For FPGAs Replacement Considerations

The datasheet explicitly states that the AT17N256 is replaced by the AT17LV256. Verify if the AT17LV256-10PI or equivalent LV series components are available as direct replacements for updated designs.