IC-Mart Your Trusted Source for FPGA – Configuration Memory Chips

(from leading manufacturers)

1. Classification by Manufacturer

A. FPGA Vendor-Specific (Recommended/Proprietary)

These chips are provided or specified by the FPGA vendors. They offer the best software compatibility and use proprietary hardware handshake protocols.

Manufacturer	Series	Typical Models	Target FPGA Series	Key Features
Intel (formerly Altera)	EPCQ-A	EPCQ64ASI16N, EPCQ128ASI16N	Cyclone V, Arria 10, Stratix V	High-speed Quad SPI (QSPI); supports large bitstreams.
	EPCS	EPCS16SI8N, EPCS64SI16N	Cyclone II/III/IV, MAX II	Classic single-wire serial config; cost-effective.
	EPC	EPC2LC20N, EPC16UC88N	Legacy Stratix, APEX	Traditional parallel or serial PROM.
AMD (formerly Xilinx)	Platform Flash	XCF04SV0G20C, XCF32PVOG48C	Spartan-3, Virtex-4/5	Supports JTAG chaining and parallel config (SelectMAP).
	UltraScale+	Certified 3rd-party QSPI (e.g., Micron)	Kintex / Virtex UltraScale+	Modern FPGAs now rely on deep certification of 3rd-party chips.
Microchip (formerly Atmel)	AT17 Series	AT17F080-30CU, AT17LV010-10PU	Broad compatibility (Altera/Xilinx legacy)	High reliability; common in aerospace and defense.
Lattice	MachXO/XP	Internal Flash	MachXO2, LatticeXP2	No external chip needed; memory is integrated on-die.
	ispPACP	ispPAC-CLK5610V	Legacy ispLSI series	Specific to CPLD (Complex Programmable Logic) config.

B. Third-Party General-Purpose Flash

Standard SPI/QSPI protocols are now the norm. Most engineers use these for BOM (Bill of Materials) cost optimization.

Manufacturer	Core Series	Typical Models	Role in FPGA Systems
Micron	MT25Q / N25Q	MT25QU128ABA, N25Q128A13ESF40F	Premium Choice: Standard on AMD/Intel official dev boards.
Winbond	W25Q Series	W25Q64JVSSIG, W25Q128JVSIM	Market Leader: Highest share; Dual/Quad mode; broad compatibility.
Macronix	MX25L / MX25U	MX25L12833FM2I, MX25U25635F	Steady Supply: Preferred for industrial and automotive sectors.
GigaDevice	GD25Q / GD25B	GD25Q64ESIG, GD25B128ESIG	Domestic Replacement: Pin-to-pin compatible with Winbond.
Infineon (Cypress)	S25FL / S25FS	S25FL128SAGMFI011, S25FS256SAGBHI200	High Performance: Semper Flash offers ultra-fast boot and safety.

2. Chinese Domestic Manufacturers & Typical Models

A. General-Purpose Storage (BOM Optimization)

These are the primary local substitutes for Winbond or Micron in consumer and industrial electronics.

Manufacturer	Series	Typical Models	Market Position
GigaDevice	GD25Q / GD25B	GD25Q64E, GD25Q128E	Market Leader. Stable performance; top choice for overseas brand replacement.
XMC	XM25Q / XM25QW	XM25QH128C, XM25QU256C	In-house fab with stable capacity. Excellent ultra-low voltage series.
Puya	P25Q Series	P25Q64H, P25Q128H	Focused on ultra-low power. Ideal for compact, battery-powered FPGA projects.
Boya	BY25Q Series	BY25Q64AS, BY25Q128AS	High cost-performance; popular in industrial displays.
Zbit	ZB25VQ Series	ZB25VQ64, ZB25VQ128	Emphasizes wide temperature ranges and reliability.

B. High-Reliability & Specialty (Defense/Aerospace)

These provide high-grade alternatives to Xilinx XCF or Altera EPC series.

Manufacturer	Series	Typical Models	Market Position
Fudan Micro	FM25F / FM25V	FM25F01, FM25V02	Premium Local Brand. Paired with their own high-end FPGAs; offers space-grade versions.
772 Institute (BMTI)	B17V / B18V	B17V04, B18V01	Specialized Defense. Pin-to-pin replacements for Xilinx 17V series.
CETC 54/58	Proprietary PROM	Classified / Internal	Integrated, radiation-hardened configuration solutions.

C. Integrated Domestic FPGA Solutions

• Gowin: LittleBee Series (e.g., GW1N) features Internal Flash. No external chip is needed. Perfect for space-constrained designs.
• Anlu: ELF Series also offers models with embedded configuration memory.
• Pango Micro: Does not produce Flash but provides an official “Certified Local Flash List,” recommending GigaDevice and Fudan Micro.

3. Typical Use FPGA – Configuration Memory Case Scenarios

A. Industrial Automation (e.g., Concrete Pump Controllers)

Industrial environments demand extreme stability. Memory stores multiple configuration profiles. If a mode needs to change or a self-test is required, the FPGA reloads the specific logic image.

B. Remote Hardware Updates (OTA)

For 5G base stations or smart grids, physical hardware access is impossible. Engineers push a new bitstream over the network into the memory. On reboot, the FPGA upgrades its own hardware logic.

C. Golden Image Recovery

For mission-critical systems, if an update fails and the bitstream is corrupted, the device “bricks.” Memory keeps a read-only “Golden Image” (the stable original). The FPGA auto-reverts to this to stay alive.

D. IP Protection & Encryption

Hardware code is a core asset. Modern memory chips support encrypted bitstreams. Only an FPGA with the correct hardware key can decrypt and run the data, preventing logic cloning.

E. Multi-boot Tasks

Complex test instruments or gateways change roles on the fly. Memory stores multiple logic packages. The FPGA swaps its entire hardware circuit in seconds based on real-time commands.

4. The Four Core Technical Categories

1. Dedicated Serial Configuration FlashTightly bound to the vendor’s Active Serial (AS) mode. It is plug-and-play. Native support is built into software like Intel’s Quartus.
   • Logic: Vendor ecosystem lock-in.
2. Platform/Parallel Configuration MemoryMore complex than simple SPI. Supports parallel modes (like SelectMAP) to drastically shorten boot times for massive FPGAs. Supports JTAG daisy-chaining.
   • Logic: Built for high-density, mission-critical boot speed.
3. EEPROM-Based Configuration MemoryA legacy tech path. It has smaller capacities but extreme stability. Mostly used for low-power CPLDs or maintaining long-lifecycle legacy systems.
   • Logic: Maintenance and legacy industrial support.
4. General-Purpose QSPI/SPI NOR FlashThe heavy lifter of modern supply chains. While not “dedicated,” FPGAs now support standard SPI protocols. Engineers use QVL-certified (Qualified Vendor List) chips to slash BOM costs.