{"id":2983,"date":"2026-05-29T00:35:14","date_gmt":"2026-05-29T00:35:14","guid":{"rendered":"https:\/\/materialparts.com\/fm25l16b-dgtr\/"},"modified":"2026-05-29T00:35:14","modified_gmt":"2026-05-29T00:35:14","slug":"fm25l16b-dgtr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/fm25l16b-dgtr\/","title":{"rendered":"FM25L16B-DGTR"},"content":{"rendered":"

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

The FM25L16B-DGTR from Infineon (formerly Ramtron\/Cypress) is a 16Kbit (2K x 8) serial F-RAM memory with SPI interface operating up to 20MHz. Offering 100 trillion (10^14) read\/write cycles and 151-year data retention at 65\u00b0C, it provides NoDelay writes and serves as a drop-in EEPROM replacement. Housed in 8-TDFN (4×4.5mm), it operates from 2.7V to 3.6V.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Memory Type<\/td>\nF-RAM (Ferroelectric RAM)<\/td>\n<\/tr>\n
Density<\/td>\n16 Kbit<\/td>\n<\/tr>\n
Organization<\/td>\n2K x 8<\/td>\n<\/tr>\n
Interface<\/td>\nSPI (Mode 0 & 3)<\/td>\n<\/tr>\n
Max Clock Frequency<\/td>\n20 MHz<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n2.7V ~ 3.6V<\/td>\n<\/tr>\n
Write Endurance<\/td>\n10^14 (100 trillion) read\/write 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 (typical)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C ~ 85\u00b0C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\n8-TDFN (4×4.5mm)<\/td>\n<\/tr>\n
\u90e8\u4ef6\u72b6\u6001<\/td>\n\u6d3b\u8dc3<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • 100 trillion (10^14) read\/write cycles \u2014 100 million times more than EEPROM<\/li>\n
  • 151-year data retention at 65\u00b0C<\/li>\n
  • NoDelay writes \u2014 no write delay or polling needed<\/li>\n
  • 20MHz SPI interface compatible with SPI Mode 0 and Mode 3<\/li>\n
  • Hardware and software write protection with block protect<\/li>\n
  • Drop-in replacement for serial EEPROM<\/li>\n
  • Low power: 200\u03bcA active, 3\u03bcA standby<\/li>\n
  • RoHS compliant, halogen-free<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Data logging and frequent-write applications<\/li>\n
    • \u5de5\u4e1a\u63a7\u5236\u548c\u81ea\u52a8\u5316<\/li>\n
    • Metering and smart grid<\/li>\n
    • Automotive systems (non-critical)<\/li>\n
    • Configuration storage in networking equipment<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The FM25L16B-DGTR from Infineon (formerly Ramtron\/Cypress) is a 16Kbit (2K x 8) serial F-RAM memory with SPI interface operating up to 20MHz. Offering 100 trillion (10^14) read\/write cycles and 151-year data retention at 65\u00b0C, it provides NoDelay writes and serves as a drop-in EEPROM replacement. Housed in 8-TDFN (4×4.5mm), it operates from 2.7V […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,20],"tags":[],"chip_brand":[173],"class_list":["post-2983","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-infineon"],"acf":{"brief_explanation":"16Kbit SPI F-RAM, 2Kx8, 20MHz, 10^14 endurance, NoDelay writes, 8-TDFN, EEPROM replacement","date_code":"","package_case":"8-TDFN (4x4.5mm)","in_stock":2853,"datasheet":"https:\/\/www.infineon.com\/dgdl\/Infineon-FM25L16B-DataSheet-v11_00-EN.pdf","price":".14 @ 1ku","product_introduction":"The FM25L16B-DGTR from Infineon is a 16-kilobit nonvolatile F-RAM (Ferroelectric RAM) memory organized as 2,048 x 8 bits. Unlike EEPROM, F-RAM performs writes at bus speed with no write delay, eliminating the need for data polling between write operations. The device supports 100 trillion (10^14) read\/write cycles, which is 100 million times more than typical EEPROM, making it ideal for applications requiring frequent or rapid writes. Data retention is guaranteed for 151 years at 65\u00b0C. The SPI interface supports clock frequencies up to 20MHz and is compatible with both SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1). The FM25L16B is a hardware drop-in replacement for serial EEPROM, offering dramatically better write endurance and speed without requiring changes to the SPI bus protocol.","working_principle":"The FM25L16B-DGTR uses ferroelectric capacitor technology to achieve nonvolatile data storage. Each memory cell contains a ferroelectric capacitor whose polarization state represents the stored data bit. Unlike EEPROM which uses floating-gate transistors requiring high-voltage programming and erase cycles, F-RAM writes data by applying a voltage to the ferroelectric capacitor, which switches its polarization state in nanoseconds. This eliminates the need for a charge pump and the associated write delay. The read operation senses the polarization state of the capacitor through a charge-sensing amplifier. Because the read operation is destructive (it flips the polarization), the data is automatically rewritten after each read. The SPI interface handles all command decoding, address latching, and data transfer operations.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>
      1<\/td>\/CS<\/td>I<\/td>Chip select (active low)<\/td><\/tr>
      2<\/td>SO<\/td>O<\/td>Serial data output (MISO)<\/td><\/tr>
      3<\/td>\/WP<\/td>I<\/td>Write protect (protects status register)<\/td><\/tr>
      4<\/td>VSS<\/td>GND<\/td>Ground<\/td><\/tr>
      5<\/td>SI<\/td>I<\/td>Serial data input (MOSI)<\/td><\/tr>
      6<\/td>SCK<\/td>I<\/td>Serial clock<\/td><\/tr>
      7<\/td>\/HOLD<\/td>I<\/td>SPI hold (pauses serial communication)<\/td><\/tr>
      8<\/td>VDD<\/td>PWR<\/td>Supply voltage (2.7V-3.6V)<\/td><\/tr><\/table>","application_scenarios":"
      • Data Logging<\/b>: Frequent sensor data writes in industrial and metering applications without wear concerns<\/li>
      • Metering<\/b>: Nonvolatile storage for calibration data and running totals in smart meters<\/li>
      • Industrial Control<\/b>: Rapid configuration writes in PLCs and motor controllers<\/li>
      • Networking<\/b>: MAC address, serial number, and configuration storage with NoDelay writes<\/li>
      • Automotive<\/b>: Non-critical parameter storage with virtually unlimited endurance<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        FM25L16B-GTR<\/td>Infineon<\/td>SOIC-8 package variant<\/td><\/tr>
        FM25L04B-DGTR<\/td>Infineon<\/td>4Kbit version, same pinout<\/td><\/tr>
        FM25V01-G<\/td>Infineon<\/td>16Kbit, wider voltage (1.5V-5.5V)<\/td><\/tr>
        MB85RS16PNF-G-JNERE1<\/td>Fujitsu<\/td>16Kbit F-RAM, SPI, similar specs<\/td><\/tr>
        AT25LN011<\/td>Microchip<\/td>1Mbit EEPROM (if endurance is not critical)<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2983","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=2983"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2983\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=2983"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=2983"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=2983"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=2983"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}