Serial NOR Flash remains the default non-volatile memory for embedded designs that need fast execute-in-place read access. BOYA (博雅) produces a broad range of serial NOR Flash densities and packages, and we now carry a live batch of BOYA devices as an independent distributor. This guide maps the BOYA NOR Flash family and explains how to choose the right density, package and speed class for your project.
1. Where BOYA NOR Flash fits
Serial NOR Flash is chosen when the host reads code or data directly from the memory rather than copying it to RAM first. Typical use cases include:
- MCU boot and program storage — the microcontroller fetches code directly from Flash.
- FPGA configuration — the FPGA loads its bitstream from an external Flash on power-up.
- Display and audio assets — images, fonts and sound files stored for quick random access.
- Parameter and calibration data — non-volatile storage that must survive power cycling.
2. The BOYA parts we stock
| Part Number | Description | Link |
|---|---|---|
| BY25Q20AWUIG(R) | 2 Mbit, USON-8, 26+ date code | BY25Q20AWUIG(R) |
| BY25Q16ESTIG | 16 Mbit, SOP-8, 26+ date code | BY25Q16ESTIG |
| BY25Q40AWTIG | 4 Mbit, SOP8-150MIL, 26+ date code | BY25Q40AWTIG |
| BY25Q64ESTIG(R) | 64 Mbit, SOP-8-150mil, 26+ date code | BY25Q64ESTIG(R) |
| BY25Q128ASSIG | 128 Mbit, SOP-8-208mil, 26+ date code | BY25Q128ASSIG |
| BY25FQ256FSSIG | 256 Mbit, SOP-8, 26+ date code | BY25FQ256FSSIG |
3. Selection priorities
- Density first. Size for today’s code plus one or two firmware revisions of headroom.
- Package second. USON-8 for area; SOP-8 for ease of assembly and programming.
- Voltage and speed third. Confirm that the part supports your I/O voltage and read/write timing.
- Date code last. We list date-code batches so you can match your supply-chain requirements.
Browse the full range in memory and logic devices. Prices move with quantity and market conditions, so send us your target part and quantity for a real-time quote.
Frequently asked questions
What is BOYA NOR Flash used for?
BOYA serial NOR Flash devices store code, configuration data and images in embedded systems. Typical applications include MCU program memory, FPGA configuration, boot code, display data and parameter storage where fast random read access matters.
How do I choose a NOR Flash density?
Match the density to your firmware image, expected growth and any data-logging needs. A 2 Mbit part suits small bootloaders; 16–32 Mbit covers many mainstream MCU applications; 128–256 Mbit is used for larger code, graphics assets or multi-image storage.
What packages do BOYA NOR Flash parts come in?
The BOYA parts we stock come in standard SOP-8, SOP-8-150mil, SOP-8-208mil, USON-8 and QFN packages. USON-8 saves board area; SOP-8 is easier to hand-solder and widely supported by programmers.
Do you franchise BOYA products?
No. Jingteng Electronics is an independent distributor. All brand names and part numbers are used for identification purposes only. See our Legal Notice / Trademark Disclaimer.
About us & trademarks: JTDZ Tech (Shenzhen Jingteng Electronics Technology Co., Ltd.) is an independent distributor of electronic components. We are not an authorised distributor or representative of the manufacturers named in this article. Manufacturer and part names are used for indicative purposes only, to help identify the components discussed; all trademarks remain the property of their respective owners. Always verify specifications against the official datasheet before design-in or purchase.
Recommended next steps
If you are sourcing any of the parts mentioned in this guide, we can help you confirm stock, pricing, and lead times quickly.
- Upload your BOM — send your full parts list and receive a consolidated quote within 2 business hours.
- Browse related in-stock lines: Memory / Logic Devices.
- Contact our team for hard-to-find or end-of-life components.
