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Description
CYPRESS SEMICONDUCTOR FM25W256-G NVRAM, FRAM, 256 Kbit, 32K x 8bit, SPI, SOICThe FM25W256 G is a 256Kbit (32K 8bit) SPI FRAM (Ferroelectric Random Access Memory) device in 8 pin SOIC package. This non volatile memory reads and writes similar to RAM. It provides reliable data retention for 151 years while eliminating complexities, overhead and system level reliability problems caused by serial flash, EEPROM and other non volatile memories. Unlike serial flash and EEPROM, the FM25W256 performs write operations at bus speed. No
The FM25W256-G is a 256Kbit (32K � 8bit) SPI FRAM (Ferroelectric Random Access Memory) device in 8 pin SOIC package. This non volatile memory reads and writes similar to RAM. It provides reliable data retention for 151 years while eliminating complexities, overhead and system level reliability problems caused by serial flash, EEPROM and other non volatile memories. Unlike serial flash and EEPROM, the FM25W256 performs write operations at bus speed. No write delays are incurred. Data is written to the memory array immediately after each byte is successfully transferred to device. The next bus cycle can commence without need for data polling. In addition, the device offers substantial write endurance compared with other non volatile memories. The FM25W256 provides substantial benefits to users of serial EEPROM or flash as hardware drop-in replacement.
- High endurance 100 trillion (10^14) read/writes
- Automotive grade AEC-Q100 qualified
- Advanced high reliability ferroelectric process
- Up to 20MHz frequency
- Sophisticated write protection scheme
- Low power consumption
- Active current of 250�A at 1MHz
- Typical standby current of 15�A
- Wide operating voltage range from 2.7V to 5.5V
- Operating temperature range from -40�C to 85�C
Applications
Embedded Design & Development
Product details
| Memory Type | FRAM |
| Operating Temperature Min | -40�C |
| Operating Temperature Max | 85�C |
| Access Time | - |
| No. of Pins | 8Pins |
| Memory Size | 256Kbit |
| Product Range | - |
| NVRAM Memory Configuration | 32K x 8bit |
| Memory Case Style | SOIC |
| Supply Voltage Min | 2.7V |
| IC Interface Type | SPI |
| Packaging | Each |
| Supply Voltage Max | 5.5V |
| MSL | MSL 1 - Unlimited |
Other details
| Brand | CYPRESS SEMICONDUCTOR |
| Part Number | FM25W256-G |
| Quantity | Each |
| Technical Data Sheet EN | |
| Product Change Notice EN |
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. Image is for illustrative purposes only. Please refer to product description.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
Quality timepiece
Color: Brown on Brown Rubber, Color: Brown on Brown Rubber
Beautiful watch keeping accurate time. Quality timepiece
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 23, 2025
★★★★★ 5
MUY BONITO
Color: Blue on Blue Fabric
EXCELENTE
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Reviewed in the United States on March 30, 2026
★★★★★ 5
Stunning!
Color: Blue on Stainless Steel
Amazing looking watch! Super happy with the design and looks of this piece. I totally love it!
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Reviewed in the United States on August 6, 2025
★★★★★ 5
Great watch, Art Of Horology was a pleasure to deal with
Color: Anthracite on Stainless Steel
What a great watch! There are so many choices out there (even when you filter out a large portion of those you are clearly not interested in :-). Know what you like, use discipline with your cash, be logical, but then even after all that, you will eventually just have to let the right brain kick in and choose based on creativity and intuition. I needed a watch, and wanted a decent one, that looked good. This does all of that in style.
It's not too big, its fairly waterproof, easy to read with clean lines. I wanted lume...
The textured face has an interesting effect, like looking out a window at late dusk.
Don't buy too many things, but when you do be wise. Even the Dalai Lama likes good watches.
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Reviewed in the United States on March 19, 2022
★★★★★ 5
Reloj elegante!
Color: Anthracite on Stainless Steel
El reloj es bello, tal como se ve en la foto. Podría mejorar si tuviera mayor reserva de marcha, pero si lo usas todos los días a la misma hora, no tienes que darle cuerda o ponerlo en hora.
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Reviewed in the United States on October 28, 2025
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