{"id":5171,"date":"2026-06-09T09:05:05","date_gmt":"2026-06-09T09:05:05","guid":{"rendered":"https:\/\/materialparts.com\/ds1314e\/"},"modified":"2026-06-09T09:05:05","modified_gmt":"2026-06-09T09:05:05","slug":"ds1314e","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/ds1314e\/","title":{"rendered":"DS1314E+"},"content":{"rendered":"

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

The DS1314E+ from Analog Devices\/Maxim Integrated is a 3V nonvolatile SRAM controller with lithium battery monitor, providing automatic write protection and battery backup switching for CMOS SRAM.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
\u5236\u9020\u5546<\/td>\nAnalog Devices (Maxim)<\/td>\n<\/tr>\n
\u529f\u80fd<\/td>\nNonvolatile SRAM Controller<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n3.0V to 3.6V<\/td>\n<\/tr>\n
\u5907\u7528\u7535\u6c60<\/td>\nAutomatic switch<\/td>\n<\/tr>\n
Battery Monitor<\/td>\nYes (low battery warning)<\/td>\n<\/tr>\n
Write Protection<\/td>\nUnconditional on VCC fault<\/td>\n<\/tr>\n
Reset Output<\/td>\nYes (active low)<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\n20-TSSOP<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n
MSL<\/td>\n1 (Unlimited)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Converts CMOS SRAM to nonvolatile memory<\/li>\n
  • Unconditional write protection on VCC fault<\/li>\n
  • Automatic battery backup switching<\/li>\n
  • Lithium battery voltage monitoring<\/li>\n
  • Low battery warning output (BW)<\/li>\n
  • Processor reset on power failure<\/li>\n
  • 3.0V\/3.3V tolerance selection (TOL pin)<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Industrial data retention<\/li>\n
    • Embedded NVRAM<\/li>\n
    • Configuration storage<\/li>\n
    • Calibration data preservation<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The DS1314E+ from Analog Devices\/Maxim Integrated is a 3V nonvolatile SRAM controller with lithium battery monitor, providing automatic write protection and battery backup switching for CMOS SRAM. Key Specifications Manufacturer Analog Devices (Maxim) Function Nonvolatile SRAM Controller Supply Voltage 3.0V to 3.6V Battery Backup Automatic switch Battery Monitor Yes (low battery warning) Write […]<\/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":[13,55],"tags":[],"chip_brand":[165],"class_list":["post-5171","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-transistors","chip_brand-adi"],"acf":{"brief_explanation":"3V NVRAM controller, battery monitor, 20-TSSOP","date_code":"","package_case":"20-TSSOP (6.5 x 4.4 mm, 0.65mm pitch)","in_stock":13848,"datasheet":"https:\/\/www.analog.com\/media\/en\/technical-documentation\/data-sheets\/DS1314-DS1314C.pdf","price":"$9.33 @ 1ku","product_introduction":"The DS1314E+ from Analog Devices (Maxim) is a 3V nonvolatile SRAM controller with integrated lithium battery monitoring. It converts volatile CMOS SRAM into nonvolatile memory by providing automatic write protection during power failures and switching to battery backup. The battery monitor provides early warning of battery end-of-life. The + suffix indicates RoHS-compliant lead-free version in tube packaging.","working_principle":"The DS1314E intercepts the SRAM chip-enable signal and controls the SRAM power supply. When VCC drops below the threshold (set by TOL pin), it: (1) blocks chip-enable to write-protect SRAM, (2) switches SRAM power from VCC to battery, and (3) asserts RST output. The battery monitor checks battery voltage every 24 hours and asserts BW if below threshold. On power recovery, RST stays active for 150-350ms to ensure stable processor startup.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      Multiple<\/td>CEI\/CEO<\/td>Chip enable in\/out<\/td><\/tr>
      Multiple<\/td>VCCI\/VCCO<\/td>Power in\/out to SRAM<\/td><\/tr>
      Multiple<\/td>VBAT<\/td>Battery backup input<\/td><\/tr>
      Multiple<\/td>TOL<\/td>VCC tolerance select<\/td><\/tr>
      Multiple<\/td>RST\/BW<\/td>Reset and battery warning outputs<\/td><\/tr><\/table>","application_scenarios":"
      • Industrial NVRAM data retention<\/li>
      • Embedded system configuration backup<\/li>
      • Calibration constant preservation<\/li>
      • Critical data nonvolatile storage<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Notes<\/th><\/tr>
        ADI<\/td>DS1314E+TR<\/td>Tape and reel version<\/td><\/tr>
        ADI<\/td>DS1314C+<\/td>With clock function<\/td><\/tr>
        ADI<\/td>DS1210+<\/td>5V version<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5171","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=5171"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5171\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=5171"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=5171"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=5171"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=5171"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}