EPCQL256F24IN

Configuration PROMs For FPGAs Overview

The Altera EPCQL256F24IN is a serial configuration device belonging to the EPCQ (Embedded Programmable Configuration Q) family. It provides non-volatile storage for FPGA configuration data, featuring a 256-Mbit capacity organized as 32M x 8 bits. The component utilizes a Quad SPI interface for high-speed data transfer and operates within a commercial temperature range of 0°C to 70°C. It is housed in a 24-pin Thin Quad Flat Package (TQFP) with a 0.65 mm pitch. The device supports standard SPI protocols including Single, Dual, and Quad I/O modes, ensuring compatibility with Altera FPGAs for reliable system initialization.

Configuration PROMs For FPGAs Feature Summary

• Provides non-volatile storage for FPGA configuration bitstreams
• Supports high-speed Quad SPI interface for rapid data loading
• Integrated error correction code (ECC) for data integrity verification

Configuration PROMs For FPGAs Applications

• Configuration storage for Cyclone IV and V FPGAs
• System initialization for Arria II and GX FPGAs
• Data retention for embedded processor systems requiring persistent boot code

Configuration PROMs For FPGAs Procurement Notes

Verify the specific suffix 'F24' corresponds to the 24-pin TQFP package and commercial temperature grade during procurement. Confirm that the ordering part number matches the required 256-Mbit density. Ensure the supplier provides documentation confirming RoHS compliance and lead-free status, as these are standard for this component series but must be validated against the specific batch or revision being purchased.

Configuration PROMs For FPGAs Selection Notes

Select this component when a 256-Mbit capacity is required for FPGA configuration. Choose the EPCQL series over standard EPCQ devices if higher speed Quad SPI support is necessary for faster boot times. Consider the TQFP package only if board space constraints allow for surface-mount technology compatible with 0.65 mm pitch components. Verify voltage requirements match the target FPGA's configuration pin specifications before finalizing the design.

Configuration PROMs For FPGAs Part Context

The EPCQ family serves as the primary non-volatile memory solution for Altera FPGAs, replacing older parallel configuration devices. This specific model represents an evolution in density and interface speed, allowing designers to store larger bitstreams efficiently. It integrates directly with the FPGA's configuration controller, simplifying board layout by reducing pin counts compared to parallel alternatives while maintaining robust data security features.

Configuration PROMs For FPGAs Replacement Considerations

Direct replacements include other EPCQL256 variants with different package options such as EPCQL256I144 for BGA packaging. Cross-family migration to EPCQ256 is possible if Quad SPI speed is not critical. Verify pinout compatibility and firmware compatibility when substituting with newer generation configuration devices from Intel/Altera.