{"id":2509,"date":"2026-05-22T03:28:51","date_gmt":"2026-05-22T03:28:51","guid":{"rendered":"https:\/\/materialparts.com\/24aa64t-i-ot\/"},"modified":"2026-05-22T03:28:51","modified_gmt":"2026-05-22T03:28:51","slug":"24aa64t-i-ot","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/24aa64t-i-ot\/","title":{"rendered":"24AA64T-I\/OT"},"content":{"rendered":"

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

The 24AA64T-I\/OT is a 64Kbit I2C serial EEPROM manufactured by Microchip Technology. Organized as 8K x 8-bit memory, it operates from 1.7V to 5.5V with standby current of only 1uA. The device supports 400kHz clock frequency and features a 32-byte page write buffer with 1 million erase\/write cycle endurance and over 200 years data retention.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
Memory Density<\/td>\n64Kbit (8K x 8)<\/td>\n<\/tr>\n
Interface<\/td>\nI2C (2-wire)<\/td>\n<\/tr>\n
Max Clock Frequency<\/td>\n400kHz<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n1.7V to 5.5V<\/td>\n<\/tr>\n
Page Size<\/td>\n32 bytes<\/td>\n<\/tr>\n
Page Write Time<\/td>\n5ms typical<\/td>\n<\/tr>\n
Endurance<\/td>\n1,000,000 erase\/write cycles<\/td>\n<\/tr>\n
Data Retention<\/td>\n>200 years<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40C to +85C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSOT-23-5<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Low-voltage operation down to 1.7V<\/li>\n
  • 400kHz I2C compatible interface<\/li>\n
  • 32-byte page write buffer<\/li>\n
  • Hardware write-protect pin<\/li>\n
  • Schmitt trigger inputs for noise suppression<\/li>\n
  • Cascadable up to 8 devices on same bus<\/li>\n
  • ESD protection >4000V<\/li>\n
  • Self-timed erase\/write cycle<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Data acquisition and logging systems<\/li>\n
    • Personal communications equipment<\/li>\n
    • Industrial control parameter storage<\/li>\n
    • Consumer electronics configuration data<\/li>\n
    • IoT device settings storage<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The 24AA64T-I\/OT is a 64Kbit I2C serial EEPROM manufactured by Microchip Technology. Organized as 8K x 8-bit memory, it operates from 1.7V to 5.5V with standby current of only 1uA. The device supports 400kHz clock frequency and features a 32-byte page write buffer with 1 million erase\/write cycle endurance and over 200 years […]<\/p>\n","protected":false},"author":2,"featured_media":2765,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13],"tags":[],"chip_brand":[134],"class_list":["post-2509","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-integrated-circuits-ics","chip_brand-microchip"],"acf":{"brief_explanation":"64Kbit I2C Serial EEPROM, 1.7-5.5V, 400kHz, SOT-23-5","date_code":"","package_case":"SOT-23-5 (2.9 x 1.6 x 1.1 mm)","in_stock":4461,"datasheet":"https:\/\/www.microchip.com\/en-us\/product\/24AA64","price":"$0.39 @ 1ku","product_introduction":"The 24AA64T-I\/OT is a 64Kbit I2C compatible serial EEPROM from Microchip Technology, organized as 8K x 8-bit. It supports low-voltage operation down to 1.7V with ultra-low standby current of 1uA, making it ideal for battery-powered and low-power applications. The device features a 32-byte page write buffer, 400kHz clock compatibility, and Schmitt trigger inputs for enhanced noise immunity. With 1 million erase\/write cycle endurance and over 200 years of data retention, it provides reliable non-volatile storage.","working_principle":"The 24AA64 communicates via the I2C protocol using SDA (data) and SCL (clock) lines. The device address is set by three address pins (A0, A1, A2), allowing up to 8 devices on the same bus. Write operations are initiated by sending the device address followed by the memory address and data bytes. The 32-byte page write buffer allows writing up to 32 bytes in a single operation. Read operations can be sequential (current address read) or random (random read with address specification). The hardware write-protect pin prevents accidental data modification.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>A0<\/td>Input<\/td>Address input 0<\/td><\/tr>
      2<\/td>A1<\/td>Input<\/td>Address input 1<\/td><\/tr>
      3<\/td>A2<\/td>Input<\/td>Address input 2<\/td><\/tr>
      4<\/td>VSS<\/td>Power<\/td>Ground<\/td><\/tr>
      5<\/td>SDA<\/td>I\/O<\/td>Serial data line<\/td><\/tr>
      6<\/td>SCL<\/td>Input<\/td>Serial clock line<\/td><\/tr>
      7<\/td>WP<\/td>Input<\/td>Write protect (active high)<\/td><\/tr>
      8<\/td>VCC<\/td>Power<\/td>Supply voltage (1.7-5.5V)<\/td><\/tr><\/table>","application_scenarios":"
      • Industrial control parameter storage and calibration data<\/li>
      • Consumer electronics configuration and user settings<\/li>
      • IoT device firmware and network configuration storage<\/li>
      • Medical device patient data logging<\/li>
      • Automotive electronic module settings<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Microchip<\/td>24LC64T-I\/OT<\/td>SOT-23-5<\/td>Wider voltage range (1.8-5.5V)<\/td><\/tr>
        Microchip<\/td>24AA64-I\/SN<\/td>SOIC-8<\/td>SOIC package version<\/td><\/tr>
        STMicroelectronics<\/td>M24C64-WMN<\/td>SOIC-8<\/td>64Kbit I2C EEPROM<\/td><\/tr>
        onsemi<\/td>CAT24C64<\/td>SOIC-8<\/td>64Kbit I2C EEPROM<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2509","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=2509"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2509\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media\/2765"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=2509"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=2509"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=2509"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=2509"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}