{"id":2803,"date":"2026-05-26T01:23:21","date_gmt":"2026-05-26T01:23:21","guid":{"rendered":"https:\/\/materialparts.com\/fm25cl64b\/"},"modified":"2026-05-26T01:23:21","modified_gmt":"2026-05-26T01:23:21","slug":"fm25cl64b","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/fm25cl64b\/","title":{"rendered":"FM25CL64B"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The FM25CL64B from Infineon Technologies is a 64Kbit (8K x 8) serial F-RAM with SPI interface. As a non-volatile memory employing advanced ferroelectric process, it provides NoDelay writes at bus speed, 100 trillion read\/write cycle endurance, and 151-year data retention, offering a superior drop-in replacement for serial EEPROM and Flash memory.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n
Memory Size<\/td>\n64Kbit (8KB)<\/td>\n<\/tr>\n
Organization<\/td>\n8K x 8<\/td>\n<\/tr>\n
Interface<\/td>\nSPI (Mode 0 and 3)<\/td>\n<\/tr>\n
Max Clock Frequency<\/td>\n20MHz<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n2.7V to 3.65V<\/td>\n<\/tr>\n
Write Endurance<\/td>\n100 trillion (10^14) cycles<\/td>\n<\/tr>\n
Data Retention<\/td>\n151 years @ 65\u00b0C<\/td>\n<\/tr>\n
Active Current<\/td>\n200\u03bcA @ 1MHz<\/td>\n<\/tr>\n
Standby Current<\/td>\n3\u03bcA typ.<\/td>\n<\/tr>\n
Package Options<\/td>\nSOIC-8, DFN-8<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • NoDelay writes at bus speed<\/li>\n
  • 100 trillion (10^14) read\/write cycle endurance<\/li>\n
  • 151-year data retention at 65\u00b0C<\/li>\n
  • Hardware and software write protection<\/li>\n
  • Supports SPI Mode 0 and Mode 3<\/li>\n
  • Direct hardware replacement for serial EEPROM<\/li>\n
  • Low power: 200\u03bcA active, 3\u03bcA standby<\/li>\n
  • AEC-Q100 qualified<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Industrial automation and data logging<\/li>\n
    • Smart metering<\/li>\n
    • Automotive electronics<\/li>\n
    • Medical equipment<\/li>\n
    • Enterprise storage systems<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The FM25CL64B from Infineon Technologies is a 64Kbit (8K x 8) serial F-RAM with SPI interface. As a non-volatile memory employing advanced ferroelectric process, it provides NoDelay writes at bus speed, 100 trillion read\/write cycle endurance, and 151-year data retention, offering a superior drop-in replacement for serial EEPROM and Flash memory. Key Specifications […]<\/p>\n","protected":false},"author":2,"featured_media":2819,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13],"tags":[],"chip_brand":[173],"class_list":["post-2803","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-integrated-circuits-ics","chip_brand-infineon"],"acf":{"brief_explanation":"64Kbit SPI F-RAM, 20MHz, 10^14 endurance, NoDelay writes, SOIC-8\/DFN-8","date_code":"","package_case":"SOIC-8 (4.9 x 3.9mm) \/ DFN-8 (4.0 x 3.0mm)","in_stock":13087,"datasheet":"https:\/\/www.infineon.com\/part\/FM25CL64B-GTR","price":"$2.95 @ 100u","product_introduction":"The FM25CL64B from Infineon Technologies is the base product number for a family of 64Kbit (8K x 8) serial F-RAM devices with SPI interface. Using an advanced ferroelectric process, this non-volatile memory performs read and write operations similar to RAM with no write delays. With 100 trillion read\/write cycle endurance and 151-year data retention, it eliminates the need for wear leveling and provides a direct hardware replacement for serial EEPROM and Flash memory in applications requiring frequent or rapid writes.","working_principle":"The FM25CL64B uses ferroelectric RAM (F-RAM) technology where each memory cell stores data using ferroelectric polarization of a perovskite crystal. Unlike conventional Flash or EEPROM that use floating-gate charge storage requiring high-voltage erase\/program cycles, F-RAM writes data by applying an electric field that switches the ferroelectric polarization. This process is inherently fast and does not require charge pumps, enabling NoDelay bus-speed writes. The read-restore mechanism ensures data integrity: each read operation also refreshes the cell. The SPI interface supports both Mode 0 and Mode 3 at clock rates up to 20MHz.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>CS<\/td>Input<\/td>Active-low chip select<\/td><\/tr>
      2<\/td>SO<\/td>Output<\/td>SPI serial data output<\/td><\/tr>
      3<\/td>WP<\/td>Input<\/td>Write protect input<\/td><\/tr>
      4<\/td>VSS<\/td>Power<\/td>Ground<\/td><\/tr>
      5<\/td>SI<\/td>Input<\/td>SPI serial data input<\/td><\/tr>
      6<\/td>SCK<\/td>Input<\/td>SPI serial clock<\/td><\/tr>
      7<\/td>HOLD<\/td>Input<\/td>Suspend serial operation<\/td><\/tr>
      8<\/td>VDD<\/td>Power<\/td>Supply voltage (2.7-3.65V)<\/td><\/tr><\/table>","application_scenarios":"
      • Industrial data logging with high-frequency writes<\/li>
      • Smart meter cumulative energy and event storage<\/li>
      • Automotive ECU calibration and configuration data<\/li>
      • Medical device patient data and event logs<\/li>
      • Enterprise RAID controller write-log caching<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Infineon<\/td>FM25CL64B-GTR<\/td>SOIC-8<\/td>Tape and reel version<\/td><\/tr>
        Infineon<\/td>FM25CL64B-DGTR<\/td>DFN-8<\/td>DFN package version<\/td><\/tr>
        Infineon<\/td>FM25V02A-GTR<\/td>SOIC-8<\/td>256Kbit F-RAM upgrade<\/td><\/tr>
        Rohm<\/td>BR24G128FVT-3AGE2<\/td>SOIC-8<\/td>128Kbit EEPROM alternative<\/td><\/tr>
        Microchip<\/td>AT25SF041-SSHB<\/td>SOIC-8<\/td>4Mbit SPI Flash alternative<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2803","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=2803"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2803\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media\/2819"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=2803"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=2803"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=2803"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=2803"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}