{"id":2799,"date":"2026-05-26T01:23:14","date_gmt":"2026-05-26T01:23:14","guid":{"rendered":"https:\/\/materialparts.com\/ds3234sntr\/"},"modified":"2026-05-26T01:23:14","modified_gmt":"2026-05-26T01:23:14","slug":"ds3234sntr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/ds3234sntr\/","title":{"rendered":"DS3234SN#T&R"},"content":{"rendered":"

\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n

The DS3234SN#T&R from Analog Devices (Maxim Integrated) is an extremely accurate SPI bus real-time clock (RTC) with integrated temperature-compensated crystal oscillator (TCXO) and 256-byte battery-backed SRAM. In a 20-SOIC package, it achieves \u00b12ppm accuracy from 0\u00b0C to +40\u00b0C and operates over the industrial temperature range of -40\u00b0C to +85\u00b0C.<\/p>\n

\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
Accuracy<\/td>\n\u00b12ppm (0\u00b0C to +40\u00b0C)<\/td>\n<\/tr>\n
\u0627\u0644\u0648\u0627\u062c\u0647\u0629<\/td>\nSPI (4MHz, Mode 1 and 3)<\/td>\n<\/tr>\n
Battery-Backed SRAM<\/td>\n256 bytes<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n2.0V to 5.5V<\/td>\n<\/tr>\n
Battery Voltage<\/td>\n2.0V to 3.8V<\/td>\n<\/tr>\n
Temperature Sensor Accuracy<\/td>\n\u00b13\u00b0C<\/td>\n<\/tr>\n
Alarms<\/td>\n2 programmable time-of-day<\/td>\n<\/tr>\n
Square-Wave Output<\/td>\nProgrammable<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\n20-SOIC (300mil, 7.5mm width)<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0625\u0644\u0649 +85 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Integrated TCXO and crystal eliminates external crystal<\/li>\n
  • \u00b12ppm accuracy from 0\u00b0C to +40\u00b0C<\/li>\n
  • \u00b13.5ppm accuracy from -40\u00b0C to +85\u00b0C<\/li>\n
  • 256 bytes of battery-backed SRAM<\/li>\n
  • Digital temperature sensor output: \u00b13\u00b0C accuracy<\/li>\n
  • Two time-of-day alarms<\/li>\n
  • Programmable square-wave output<\/li>\n
  • Active-low RST input\/output<\/li>\n
  • UL recognized for lithium battery safety<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • GPS and telematics systems<\/li>\n
    • Server and networking equipment<\/li>\n
    • Utility power meters<\/li>\n
    • Industrial data loggers<\/li>\n
    • Medical instrumentation<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The DS3234SN#T&R from Analog Devices (Maxim Integrated) is an extremely accurate SPI bus real-time clock (RTC) with integrated temperature-compensated crystal oscillator (TCXO) and 256-byte battery-backed SRAM. In a 20-SOIC package, it achieves \u00b12ppm accuracy from 0\u00b0C to +40\u00b0C and operates over the industrial temperature range of -40\u00b0C to +85\u00b0C. Key Specifications Accuracy \u00b12ppm […]<\/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-2799","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-transistors","chip_brand-adi"],"acf":{"brief_explanation":"Extremely accurate SPI RTC, \u00b12ppm, TCXO+crystal, 256B SRAM, 20-SOIC industrial","date_code":"","package_case":"20-SOIC (7.5 x 5.3 x 2.35mm, 300mil)","in_stock":5657,"datasheet":"https:\/\/www.maximintegrated.com\/en\/products\/DS3234.html","price":"$5.77 @ 1ku","product_introduction":"The DS3234SN#T&R from Analog Devices (Maxim Integrated) is a low-cost, extremely accurate SPI bus real-time clock with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. The integration of the crystal resonator enhances long-term accuracy and reduces component count. The device includes 256 bytes of battery-backed SRAM, two programmable time-of-day alarms, a programmable square-wave output, and a digital temperature sensor with \u00b13\u00b0C accuracy. It is available in an industry-standard 300-mil, 20-pin SO package.","working_principle":"The DS3234 integrates a temperature-compensated crystal oscillator (TCXO) that continuously monitors the ambient temperature and adjusts the crystal load capacitance to maintain frequency accuracy. The digital temperature sensor periodically samples temperature and stores the value in a register. The RTC maintains seconds, minutes, hours, day, date, month, and year information with automatic leap year correction up to 2099. The SPI interface (Mode 1 or 3, up to 4MHz) provides read\/write access to time registers, control registers, and the 256-byte SRAM. When VCC drops below the power-fail threshold, the device automatically switches to battery backup.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>CS<\/td>Input<\/td>Active-low chip select<\/td><\/tr>
      2, 7-14<\/td>N.C.<\/td>-<\/td>No connection (connect to GND)<\/td><\/tr>
      3<\/td>32kHz<\/td>Output<\/td>32kHz push-pull output<\/td><\/tr>
      4<\/td>VCC<\/td>Power<\/td>Primary supply (2V-5.5V)<\/td><\/tr>
      5<\/td>INT\/SQW<\/td>Output<\/td>Interrupt \/ Square-wave output<\/td><\/tr>
      6<\/td>RST<\/td>I\/O<\/td>Active-low reset \/ pushbutton input<\/td><\/tr>
      15<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>
      16<\/td>VBAT<\/td>Power<\/td>Backup supply input<\/td><\/tr>
      17<\/td>DIN<\/td>Input<\/td>SPI data input<\/td><\/tr>
      18, 20<\/td>SCLK<\/td>Input<\/td>SPI clock input<\/td><\/tr>
      19<\/td>DOUT<\/td>Output<\/td>SPI data output<\/td><\/tr><\/table>","application_scenarios":"
      • GPS and fleet telematics time stamping<\/li>
      • Server and data center time keeping<\/li>
      • Smart utility meter event logging<\/li>
      • Industrial process data logging with timestamps<\/li>
      • Medical device event recording<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        ADI\/Maxim<\/td>DS3234S#T&R<\/td>20-SOIC<\/td>Commercial temp (0\u00b0C to +70\u00b0C)<\/td><\/tr>
        ADI\/Maxim<\/td>DS3231MZ+VL<\/td>8-SOIC<\/td>I2C version, \u00b12ppm accuracy<\/td><\/tr>
        Microchip<\/td>MCP7940N-I\/SN<\/td>8-SOIC<\/td>I2C\/SPI RTC, external crystal<\/td><\/tr>
        EPSON<\/td>RX8900CE<\/td>16-SOIC<\/td>I2C RTC with TCXO<\/td><\/tr>
        ST<\/td>M41T62Q6F<\/td>QFN-16<\/td>Ultra-low power I2C RTC<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/2799","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/comments?post=2799"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/2799\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=2799"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=2799"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=2799"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=2799"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}