1. Overview

Configuration PROMs (Programmable Read-Only Memory) for FPGAs are non-volatile memory devices designed to store configuration data for Field-Programmable Gate Arrays (FPGAs). These devices enable FPGAs to retain their programmed logic functionality after power cycling. Modern applications demand reliable, high-speed, and secure storage solutions for FPGA configurations in aerospace, telecommunications, automotive, and industrial systems.

2. Main Types and Functional Classification

3. Structure and Composition

Typical configuration PROMs feature:

• Package types: TSSOP, VQFN, BGA
• Memory array: Floating-gate or antifuse-based technology
• Interface: SPI, BPI, or parallel bus
• Voltage rails: 1.2V-3.3V operation with decoupling capacitors
• Error correction: Built-in ECC for radiation environments

4. Key Technical Specifications

5. Application Areas

Primary application domains:

• Telecommunications: 5G NR base stations, optical transceivers
• Industrial: Programmable logic controllers (PLCs)
• Medical: MRI scanners, patient monitoring systems
• Automotive: ADAS sensor fusion units
• Defense: Radar signal processing systems

6. Key Manufacturers and Products

7. Selection Guidelines

Key selection factors:

• Match memory density to target FPGA's bitstream size
• Verify interface compatibility (SPI/BPI/parallel)
• Evaluate environmental requirements (temperature, radiation)
• Assess security features (encryption, authentication)
• Consider programming infrastructure (socket compatibility)

8. Industry Trends

Current development trends include:

• Transition to 3D NAND architecture for densities beyond 8Gb
• Integration of hardware security modules (HSM)
• Adoption of JEDEC Xccela interface for >400MB/s throughput
• Development of radiation-tolerant devices for LEO satellites
• Implementation of AI-driven wear-leveling algorithms