Products > Integrated Circuits (ICs) > Memory > FM1808-70-SG

Images are for reference only.


Hot Sale

NVRAM FRAM Parallel 256Kbit 5V 28Pin SOIC

  • Package/Case :
  • SOP-28
  • Product Categories :
  • F-RAM
  • RoHs Status:
  • Green
  • Marking Code:
  • FM1808-70-SG
  • In-stock:
  • 4233


Request for Quotation

Warm Tips: Please fill out the below form and we will contact you as soon as possible.

FM1808-70-SG Product Details

256K bit Ferroelectric Nonvolatile RAM
· Organized as 32,768 x 8 bits
· High endurance 10 Billion (1010) read/writes
· 10 year data retention at 85° C
· NoDelay™ write
· Advanced high-reliability ferroelectric process

Superior to BBSRAM Modules
· No battery concerns
· Monolithic reliability
· True surface mount solution, no rework steps
· Superior for moisture, shock, and vibration
· Resistant to negative voltage undershoots

SRAM & EEPROM Compatible
· JEDEC 32Kx8 SRAM & EEPROM pinout
· 70 ns access time
· 130 ns cycle time
· Equal access & cycle time for reads and writes
Low Power Operation
· 25 mA active current
· 20 mA standby current
Industry Standard Configuration
· Industrial temperature -40° C to +85° C
· 28-pin SOP or DIP

The FM1808 is a 256-kilobit nonvolatile memory employing an advanced ferroelectric process. A ferroelectric random access memory or FRAM is nonvolatile but operates in other respects as a RAM. It provides data retention for 10 years while eliminating the reliability concerns, functional disadvantages and system design complexities of battery-backed SRAM. It’s fast write and high write endurance makes it superior to other types of nonvolatile memory.

In-system operation of the FM1808 is very similar to other RAM based devices. Memory read- and writecycles require equal times. The FRAM memory,however, is nonvolatile due to its unique ferroelectric memory process. Unlike BBSRAM, the FM1808 is a truly monolithic nonvolatile memory. It provides the same functional benefits of a fast write without the serious disadvantages associated with modules and batteries or hybrid memory solutions.

These capabilities make the FM1808 ideal for nonvolatile memory applications requiring frequent or rapid writes in a bytewide environment. The availability of a true surface-mount package improves the manufacturability of new designs, while the DIP
package facilitates simple design retrofits. The FM1808 offers guaranteed operation over an industrial temperature range of-40°C to +85°C.


FM1808-70-SG Pinout
(Picture: Pinout)

FM1808-70-SG Block Diagram
(Picture: Diagram)

Technical Parameters

  • Memory Size
  • 256 KB
  • Organization
  • 32 K x 8
  • Interface
  • Parallel
  • Operating Supply Voltage
  • 0 V to + 5 V
  • Operating Temperature Range
  • - 40 C to + 85 C
  • Mounting Style
  • Package / Case
  • SOIC-28
  • Packaging
  • Tube
  • Access Time
  • 70 ns
  • Factory Pack Quantity
  • 27

FM1808-70-SG Related Products

Ratings and Reviews (1)

  • 5 / 5
  • 5 Stars 100%
  • 4 Stars 0%
  • 3 Stars 0%
  • 2 Stars 0%
  • 1 Stars 0%
  • **KHIL***

    danke - immer wieder

  • Ratings
  • Please rate the product!
Shipping More
Estimated Delivery Time: Jun 30 - Jul 05 days (choose Expedited at checkout).

Shipping & Payment


  • Shipping Type
  • Ship Fee
  • Lead Time
  • $20.00-$40.00 (0.50 KG)
  • 2-5 days
  • $20.00-$40.00 (0.50 KG)
  • 3-7 days
  • $20.00-$45.00 (0.50 KG)
  • 2-5 days
  • $25.00-$65.00 (0.50 KG)
  • 2-5 days
  • $25.00-$45.00 (0.50 KG)
  • 5-14 days
  • $2.00-$3.00 (0.10 KG)
  • 7-30 days

Processing Time:Shipping fee depend on different zone and country.


  • Terms of payment
  • Hand Fee
  • Payment Site
  • charge US$30.00 banking fee.
  • charge 4.0% service fee.
  • charge 3.5% service fee.
  • charge US$0.00 banking fee.
  • charge US$0.00 banking fee.

We provide high quality products, thoughtful service and after sale guarantee

  • We have rich products, can meet your various needs.

    We have rich products, can meet your various needs.

  • Minimum order quantity starts from 1pcs.

    Minimum order quantity starts from 1pcs.

  • Lowest international shipping fee starts from US$2.00.

    Lowest international shipping fee starts from US$2.00.

  • 90 days quality guarantee for all products.

    90 days quality guarantee for all products.


  • Step1:Product

    Step1: Products

  • Step2:Vacuum packaging

    Step2: Vacuum Packaging

  • Step3:Anti-static bag

    Step3: Anti-Static Bag

  • Step4:Individual packaging

    Step4: Individual Packaging

  • Step5:Packaging boxes

    Step5: Packaging Boxes

  • Step6:bar-code shipping tag

    Step6: Bar-Code Shipping Tag

All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

Jotrin ESD packing


1.We provide 90 days warranty.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


Q: How does Jotrin guarantee that FM1808-70-SG is the original manufacturer or agent of RAMTRON?
We have a professional business development department to strictly test and verify the qualifications of RAMTRON original manufacturers and agents. All RAMTRON suppliers must pass the qualification review before they can publish their FM1808-70-SG devices; we pay more attention to the channels and quality of FM1808-70-SG products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of FM1808-70-SG chips? Including RAMTRON original factory information, F-RAM application, FM1808-70-SG pictures?
You can use Jotrin's intelligent search engine, or filter by F-RAM category, or find it through Ramtron International Corporation (Cypress) Information page.
Q: Are the RAMTRON's FM1808-70-SG price and stock displayed on the platform accurate?
The RAMTRON's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for FM1808-70-SG, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
Q: Can I place an order offline?
Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
Q: What forms of payment can I use in Jotrin?
TT Bank, Paypal, Credit Card, Western Union, and Escrow is all acceptable.
Q: How is the shipping arranged and track my package?
Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
Q: What is the process for returns or replacement of FM1808-70-SG?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the FM180870SG we delivered, we will accept the replacement or return of the FM1808-70-SG only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of FM1808-70-SG.
(3)The FM1808-70-SG is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
Q: How to contact us and get support, such as FM1808-70-SG datasheet pdf, FM1808 pin diagram?
Need any After-Sales service, please feel free contact us:

Ramtron International Corporation (Cypress)

Ramtron is a fabless semiconductor company that designs, develops, and markets specialized memory, microcontroller, and integrated semiconductor solutions. As a leading supplier of integrated products and nonvolatile FRAM (Ferroelectric Random Access Memory),...

Certificates & Honor

Certificates & Honor