{"id":7557,"date":"2026-06-26T04:33:04","date_gmt":"2026-06-26T04:33:04","guid":{"rendered":"https:\/\/materialparts.com\/txs0102dctt\/"},"modified":"2026-06-26T04:33:04","modified_gmt":"2026-06-26T04:33:04","slug":"txs0102dctt","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/txs0102dctt\/","title":{"rendered":"TXS0102DCTT"},"content":{"rendered":"

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

The TXS0102DCTT from Texas Instruments is a 2-bit bidirectional voltage-level translator for open-drain and push-pull applications, supporting 1.65V-3.6V on A port and 2.3V-5.5V on B port in SSOP-8 package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u6e20\u9053<\/td>\n2-bit bidirectional<\/td>\n<\/tr>\n
Data Rate (Push-Pull)<\/td>\n24 Mbps<\/td>\n<\/tr>\n
Data Rate (Open-Drain)<\/td>\n2 Mbps<\/td>\n<\/tr>\n
VCCA Range<\/td>\n1.65V to 3.6V<\/td>\n<\/tr>\n
VCCB Range<\/td>\n2.3V to 5.5V (VCCA <= VCCB)<\/td>\n<\/tr>\n
Direction Control<\/td>\nAuto-direction (no control signal needed)<\/td>\n<\/tr>\n
Output Enable<\/td>\nYes (active high, OE low = Hi-Z)<\/td>\n<\/tr>\n
\u4f20\u64ad\u5ef6\u8fdf<\/td>\n3-4 ns typical (push-pull)<\/td>\n<\/tr>\n
Supply Current<\/td>\n25 uA max<\/td>\n<\/tr>\n
ESD (B Port)<\/td>\n8 kV HBM<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSSOP-8 (DCT suffix)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40 to +85 C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Auto-direction sensing eliminates direction control signal<\/li>\n
  • 24Mbps push-pull and 2Mbps open-drain data rates<\/li>\n
  • VCC isolation: both ports Hi-Z if either supply is GND<\/li>\n
  • No power-supply sequencing required<\/li>\n
  • Edge-rate accelerator for fast open-drain rise times<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • I2C and SMBus voltage level translation<\/li>\n
    • GPIO voltage domain crossing<\/li>\n
    • UART and MDIO interface level shifting<\/li>\n
    • SDIO voltage translation between 1.8V and 3.3V<\/li>\n
    • Mixed-voltage system digital signal bridging<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TXS0102DCTT from Texas Instruments is a 2-bit bidirectional voltage-level translator for open-drain and push-pull applications, supporting 1.65V-3.6V on A port and 2.3V-5.5V on B port in SSOP-8 package. Key Specifications Channels 2-bit bidirectional Data Rate (Push-Pull) 24 Mbps Data Rate (Open-Drain) 2 Mbps VCCA Range 1.65V to 3.6V VCCB Range 2.3V to […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,20],"tags":[],"chip_brand":[138],"class_list":["post-7557","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-ti"],"acf":{"brief_explanation":"2-bit bidirectional level translator, 1.65-3.6V\/2.3-5.5V, SSOP-8","date_code":"","package_case":"SSOP-8 (2.95 x 4.0 x 1.2 mm)","in_stock":11200,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/txs0102.pdf","price":"$0.65 @ 1ku","product_introduction":"The TXS0102DCTT from Texas Instruments is a 2-bit bidirectional voltage-level translator designed for open-drain and push-pull applications. The A port supports 1.65V to 3.6V operation tracking VCCA, while the B port supports 2.3V to 5.5V tracking VCCB. The auto-direction sensing eliminates the need for a direction-control signal, making it ideal for I2C, SMBus, and other bidirectional interfaces. The device supports 24Mbps in push-pull mode and 2Mbps in open-drain mode. VCC isolation places both ports in Hi-Z when either supply is at GND, and no power-supply sequencing is required. The DCTT suffix denotes SSOP-8 package with tape and reel packaging.","working_principle":"The TXS0102DCTT operates as an auto-direction bidirectional level translator. (1) Each of the two channels consists of a pass transistor structure that can conduct in either direction. The A-side is designed for the lower voltage domain (1.65-3.6V) and the B-side for the higher voltage domain (2.3-5.5V). When one side drives low, the pass transistor conducts and pulls the other side low. (2) For open-drain applications (such as I2C), the edge-rate accelerator circuit detects a low-to-high transition on either side and briefly drives the line high to speed up the RC charge time. This one-shot accelerator reduces the open-drain rise time from hundreds of nanoseconds to tens of nanoseconds. The 2Mbps open-drain data rate supports standard I2C fast-mode (400kHz). (3) The auto-direction feature eliminates the need for a DIR control pin. The device senses the direction of data flow automatically based on which side is driving. When OE is low, all I\/Os enter high-impedance state, enabling bus isolation. The VCC isolation feature ensures both ports are Hi-Z if either supply rail is at ground.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>OE<\/td>Output enable (active high)<\/td><\/tr>
      2<\/td>VCCA<\/td>A-port supply (1.65-3.6V)<\/td><\/tr>
      3<\/td>A1<\/td>A-port channel 1 I\/O<\/td><\/tr>
      4<\/td>A2<\/td>A-port channel 2 I\/O<\/td><\/tr>
      5<\/td>GND<\/td>Ground<\/td><\/tr>
      6<\/td>B2<\/td>B-port channel 2 I\/O<\/td><\/tr>
      7<\/td>B1<\/td>B-port channel 1 I\/O<\/td><\/tr>
      8<\/td>VCCB<\/td>B-port supply (2.3-5.5V)<\/td><\/tr><\/table>","application_scenarios":"
      • I2C and SMBus voltage level translation between 1.8V and 3.3V\/5V<\/li>
      • GPIO voltage domain crossing with auto-direction sensing<\/li>
      • UART and MDIO interface level shifting up to 24Mbps<\/li>
      • SDIO voltage translation for mobile device interfaces<\/li>
      • Mixed-voltage system digital signal bridging with VCC isolation<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        TXS0108EPW<\/td>TI<\/td>8-channel, TSSOP-20<\/td><\/tr>
        TXB0108PWR<\/td>TI<\/td>8-bit, auto-dir, push-pull<\/td><\/tr>
        PCA9306DCUR<\/td>TI<\/td>2-bit, I2C only, VSSOP-8<\/td><\/tr>
        SN74LVC1T45DBVR<\/td>TI<\/td>1-bit, dir-controlled, SOT-23-6<\/td><\/tr>
        NVT2001DP<\/td>NXP<\/td>1-bit, I2C level translator<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7557","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=7557"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7557\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=7557"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=7557"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=7557"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=7557"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}