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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.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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
4.8 ★★★★★
Based on 672 reviews
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Product Reviews
★★★★★ 5
No slip low socks
Number of Items: 3, Color: Black/White (3-pairs), Size: Medium
Perfect! ❤️ these!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 16, 2026
★★★★★ 4
Stay put!
Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium
Nice and thin, soft, and stay put. I wear an 8 shoe and don’t like a thick sock taking up room. These socks are a bit tight on big toe. Wish they came in large.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 10, 2023
★★★★★ 5
The best
Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium
The best no show socks I have found. Stay in place very well and hold up wash after wash. I have tossed all the other brands I’ve bought over the years and stocked up on these as I was tired of digging through the drawer hoping to find a clean pair.
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Reviewed in the United States on December 8, 2024
★★★★★ 5
Love these.
Number of Items: 3, Color: White (3-pairs), Size: Medium
I have them in black and white. I use them everyday in all shoes. These are very versatile and a great quality material. They take a looong time to wear and they stay in place. Very washable and good material. They are not too thick and they do not shrink. I do air dry mine. They do not hold smells even in the summer heat.
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Reviewed in the United States on July 7, 2024
★★★★★ 5
Perfect!
Number of Items: 3, Color: Pink Quartz Assorted (3-pairs), Size: Medium
My new favorite socks! True to size, fit perfectly, and the best part is they do not slide off your foot! 10/10 recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 10, 2025
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