{"id":5742,"date":"2026-06-11T04:40:03","date_gmt":"2026-06-11T04:40:03","guid":{"rendered":"https:\/\/materialparts.com\/sn74avc1t45dckr\/"},"modified":"2026-06-11T06:40:07","modified_gmt":"2026-06-11T06:40:07","slug":"sn74avc1t45dckr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/sn74avc1t45dckr\/","title":{"rendered":"SN74AVC1T45DCKR"},"content":{"rendered":"

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

The SN74AVC1T45DCKR from TI is a 1-bit bidirectional voltage-level translator with 1.2-3.6V on both A and B ports, direction control pin, and 2.6ns propagation delay in SC-70-6.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n
\u6e20\u9053<\/td>\n1<\/td>\n<\/tr>\n
VCCA<\/td>\n1.2-3.6V<\/td>\n<\/tr>\n
VCCB<\/td>\n1.2-3.6V<\/td>\n<\/tr>\n
\u6570\u636e\u901f\u7387<\/td>\n320Mbps<\/td>\n<\/tr>\n
Prop Delay<\/td>\n2.6ns<\/td>\n<\/tr>\n
Temp<\/td>\n-40~85C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • 1-bit bidirectional level translation<\/li>\n
  • 1.2-3.6V on both ports<\/li>\n
  • Direction control pin<\/li>\n
  • 320Mbps data rate<\/li>\n
  • 2.6ns propagation delay<\/li>\n
  • Tiny SC-70-6 package<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • I\/O voltage translation<\/li>\n
    • FPGA\/MCU interface<\/li>\n
    • Multi-voltage systems<\/li>\n
    • SDIO\/SPI level shift<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The SN74AVC1T45DCKR from TI is a 1-bit bidirectional voltage-level translator with 1.2-3.6V on both A and B ports, direction control pin, and 2.6ns propagation delay in SC-70-6. Key Specifications Channels 1 VCCA 1.2-3.6V VCCB 1.2-3.6V Data Rate 320Mbps Prop Delay 2.6ns Temp -40~85C Features 1-bit bidirectional level translation 1.2-3.6V on both ports Direction […]<\/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":[138],"class_list":["post-5742","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-ti"],"acf":{"brief_explanation":"1-bit bidirectional level translator, 1.2-3.6V, SC-70-6","date_code":"","package_case":"SC-70-6 (2.1x1.25mm)","in_stock":2929,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/sn74avc1t45.pdf","price":"$0.30 @ 1ku","product_introduction":"The SN74AVC1T45DCKR from TI is a 1-bit bidirectional voltage-level translator with 1.2-3.6V on both A and B ports, direction control pin, and 2.6ns propagation delay in SC-70-6.","working_principle":"The SN74AVC1T45DCKR is a 1-bit bidirectional voltage-level translator with direction control. It has two independent power rails: VCCA (1.2-3.6V) for the A port and VCCB (1.2-3.6V) for the B port. The DIR pin determines signal direction: when DIR is HIGH, data flows from A to B; when DIR is LOW, data flows from B to A. The translation mechanism uses a pass-gate structure where the output driver is powered by the target supply rail, ensuring the output signal swings rail-to-rail on the destination side. The I\/O circuits are designed to be high-impedance when the respective supply is powered down, enabling partial-power-down operation. The device supports data rates up to 320Mbps and is suitable for translating between 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V logic levels.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>VCCA<\/td>Power<\/td>A-port supply (1.2-3.6V)<\/td><\/tr>
      2<\/td>A<\/td>I\/O<\/td>A-port data (direction depends on DIR)<\/td><\/tr>
      3<\/td>GND<\/td>Power<\/td>Ground reference<\/td><\/tr>
      4<\/td>B<\/td>I\/O<\/td>B-port data (direction depends on DIR)<\/td><\/tr>
      5<\/td>DIR<\/td>Input<\/td>Direction control (A->B when HIGH, B->A when LOW)<\/td><\/tr>
      6<\/td>VCCB<\/td>Power<\/td>B-port supply (1.2-3.6V)<\/td><\/tr><\/table>","application_scenarios":"
    • I\/O voltage translation<\/li>
    • FPGA\/MCU interface<\/li>
    • Multi-voltage systems<\/li>
    • SDIO\/SPI level shift<\/li>","alternative_models":"
      Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
      Nexperia<\/td>74AVC1T45GW<\/td>SOT-363<\/td>Direct equivalent<\/td><\/tr>
      onsemi<\/td>NL17SZT17<\/td>MicroPak-6<\/td>Single-bit translator<\/td><\/tr>
      Texas Instruments<\/td>SN74LVC1T45DCKR<\/td>SC-70-6<\/td>1.65-5.5V version<\/td><\/tr>
      Nexperia<\/td>74AUP1G340GW<\/td>SOT-363<\/td>Unidirectional translator<\/td><\/tr>
      Texas Instruments<\/td>TXB0101DCKR<\/td>SC-70-6<\/td>Auto-direction sensing version<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5742","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=5742"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5742\/revisions"}],"predecessor-version":[{"id":5892,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5742\/revisions\/5892"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=5742"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=5742"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=5742"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=5742"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}