AT17LV256-10CI

Overview

The AT17LV256-10CI is a 256-Kbit serial EEPROM designed for FPGA configuration. It supports 3.3V and 5.0V operation with an industrial temperature range of -40°C to +85°C. The device features in-system programmability via a two-wire bus and interfaces directly with SRAM FPGAs. It utilizes a simple serial access procedure to load configuration programs, supporting cascaded read-back for higher-density arrays.

Feature Summary

• Supports both 3.3V and 5.0V operating voltage applications
• Enables in-system programming via a two-wire bus interface
• Allows user-programmable reset polarity through four EEPROM bytes
• Provides cascadable read-back capability using the CEO output pin

Applications

• Configuration memory for Xilinx XC3000, XC4000, and Spartan devices
• Configuration storage for Altera FLEX and APEX devices
• Configuration memory for Atmel AT40K and AT94K devices
• Configuration storage for Actel ORCA devices

Procurement Notes

Verify that the ordering suffix 'CI' corresponds to the Industrial temperature range (-40°C to +85°C) and the 8-lead Leadless Array Package (LAP). Confirm RoHS compliance status as standard packages may differ from Green options. Ensure the specific revision matches the required datasheet version for timing characteristics.

Selection Notes

Select this component when configuring SRAM-based FPGAs requiring 256-Kbit capacity. It is suitable for designs needing industrial temperature stability and direct interfacing with FPGA master serial mode. Consider the LAP package for space-constrained PCB layouts where SOIC footprints are acceptable.

Part Context

This part belongs to the AT17LV series of FPGA Configuration EEPROMs manufactured by Microchip Technology (formerly Atmel). The series provides cost-effective configuration solutions for various FPGA families. The AT17LV256 specifically offers 256-Kbit density within this family.

Replacement Considerations

Customers may migrate to AT17LVXXX-10CU for fully green package options while maintaining functional compatibility.