AT17LV256-10NC

Configuration PROMs For FPGAs Overview

The AT17LV256-10NC is a 256-Kbit serial EEPROM designed for FPGA configuration. It supports both 3.3V and 5.0V operating voltages and features in-system programmability via a two-wire bus. The device utilizes a simple serial interface to configure SRAM-based FPGAs, supporting cascading read-back for higher-density arrays. It offers low-power standby mode, programmable reset polarity, and high-reliability endurance with data retention specifications suitable for industrial applications.

Configuration PROMs For FPGAs Feature Summary

• Supports in-system programming via a two-wire serial bus
• Compatible with various FPGA families including Xilinx and Altera devices
• Features programmable reset polarity and write protection mechanisms
• Provides cascading capability through Chip Enable Output (CEO) pin

Configuration PROMs For FPGAs Applications

• Configuration memory for Field Programmable Gate Arrays (FPGAs)
• In-system programming of FPGA configuration data
• Cascaded configurations for larger FPGA arrays

Configuration PROMs For FPGAs Procurement Notes

Verify the specific package type and temperature range required for your application. Confirm compatibility with existing FPGA configuration protocols. Check for any end-of-life notices or recommended replacements if sourcing from secondary markets. Ensure proper handling for electrostatic discharge during installation.

Configuration PROMs For FPGAs Selection Notes

Select this component when a cost-effective, serial configuration memory for SRAM-based FPGAs is needed. Consider the 8-lead SOIC package for space-constrained designs. Evaluate power supply requirements to ensure compatibility with either 3.3V or 5.0V systems. Assess the need for in-system programmability versus pre-programmed devices.

Configuration PROMs For FPGAs Part Context

The AT17LV series includes various capacities ranging from 64-Kbit to 4-Mbit. The AT17LV256 specifically provides 256-Kbit storage. It belongs to the family of FPGA configurators designed by Microchip Technology (formerly Atmel). Other packages include LAP, PDIP, PLCC, and TQFP options.

Configuration PROMs For FPGAs Replacement Considerations

Customers may migrate to the AT17LVXXX-10SU for green package options. Verify pinout compatibility when replacing older variants like -10SC or -10SI.

Configuration PROMs For FPGAs FAQ

What is the function of the CEO pin?

The CEO pin outputs a Low signal when the address counter reaches its maximum value, enabling cascading of multiple EEPROMs by connecting to the CE input of the next device.

How is the reset polarity configured?

The reset polarity can be programmed as either active High or active Low by writing to four specific EEPROM bytes using an industry-standard programmer.