EPCQ64ASI16N – 64Mb SPI Flash Memory 3.3V 100MHz SOIC-16
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EPCQ64ASI16N 64-Mbit Serial Configuration Flash Memory | Industrial-Grade 100 MHz SPI Flash in SOIC-16 for FPGA Configuration Loading
The EPCQ64ASI16N is the 64-Mbit (8 MB) serial configuration flash memory commonly used as the FPGA configuration device on Intel (Altera) FPGA designs and as a general-purpose SPI boot flash on embedded systems. Drop-in replacement when an existing FPGA's configuration flash is corrupted, end-of-life, or needs to be upgraded for a larger bitstream.
100 MHz SPI interface ensures rapid FPGA configuration loading — critical for designs where boot time matters (industrial controllers, automotive ECUs, telecom equipment). Wide 2.7V-3.6V supply voltage range matches both 3.3V and intermediate-voltage FPGA configuration banks. Industrial-grade -40°C to +85°C operating temperature handles harsh environment deployments. Ultra-low 100µA active current extends battery life in portable systems. SOIC-16 package resists vibration in automotive and industrial applications.
Typical Applications
- FPGA configuration / bitstream storage — Intel (Altera) Cyclone, Arria, MAX 10 series FPGAs.
- Embedded system boot flash — MCU boot images, firmware, DSP algorithm storage.
- Replacing obsolete flash memory — EOL or scarce-supply flash chips in legacy designs.
- Industrial controllers — PLC firmware, motion controller configurations.
- Automotive ECUs — firmware storage in vibration-prone environments.
EPCQ64ASI16N Specifications
| Parameter | Specification |
|---|---|
| Part Number | EPCQ64ASI16N |
| Capacity | 64 Mbit (8 MB) |
| Interface | SPI (Serial Peripheral Interface) |
| Max Clock Frequency | 100 MHz |
| Supply Voltage Range | 2.7V to 3.6V |
| Operating Temperature | -40°C to +85°C (industrial grade) |
| Active Current | 100 µA (ultra-low) |
| Package | SOIC-16 |
| Typical Use | FPGA configuration, embedded boot flash, firmware storage |
| Endurance | Production-grade (industrial spec) |
| Condition | Brand New (original) |
FAQ — EPCQ64ASI16N Flash Memory
Q: Is the EPCQ64 still in production?
A: The EPCQ family was the standard Intel (Altera) configuration flash for Cyclone IV / V FPGAs. Newer designs use EPCQA (smaller package) or EPCQL (larger capacity). The original EPCQ64ASI16N remains stocked for retrofit, replacement, and legacy designs that don't justify a board redesign.
Q: Can I use it on non-Altera FPGAs?
A: Yes — the SPI flash protocol is standard. Any FPGA or MCU that supports standard SPI flash (most do) can use the EPCQ64ASI16N as a boot device or general configuration storage. Xilinx FPGAs use a slightly different boot sequence but the chip's SPI commands are compatible.
Q: How do I program it during production?
A: In-system programming via the FPGA's JTAG chain (Altera Quartus Programmer with EPCQ support), or via an external SPI flash programmer (e.g., CH341A, T56) before placement. Both methods are routinely used for production manufacturing.
Q: Bulk pricing for production runs?
A: Yes — email contact@lys-sz.com with your quantity. Tape and reel pricing available for SMT line production.
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