{"id":10642,"date":"2026-07-20T09:17:00","date_gmt":"2026-07-20T09:17:00","guid":{"rendered":"https:\/\/ic-vendor.com\/sn74cbtd3306cpwr\/"},"modified":"2026-07-20T09:17:00","modified_gmt":"2026-07-20T09:17:00","slug":"sn74cbtd3306cpwr","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/es\/sn74cbtd3306cpwr\/","title":{"rendered":"SN74CBTD3306CPWR"},"content":{"rendered":"

Productos<\/h2>\n

The SN74CBTD3306CPWR is a 1-bit FET bus switch with level-shifting capability from Texas Instruments, packaged in a 14-pin TSSOP (PW) package. It features two independently controlled 5-bit bus switches with 5V-tolerant inputs and built-in level translation from 5V to 3.3V. The device is optimized for hot-insertion and live-insertion applications with low on-state resistance.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n
Funci\u00f3n<\/td>\nDual 5-Bit FET Bus Switch<\/td>\n<\/tr>\n
Bus Width<\/td>\n5 bits \u00d7 2 buses<\/td>\n<\/tr>\n
Tensi\u00f3n de alimentaci\u00f3n<\/td>\n3.3V (VCC)<\/td>\n<\/tr>\n
Input Voltage Tolerance<\/td>\nUp to 5.5V<\/td>\n<\/tr>\n
Ron (typical)<\/td>\n7\u03a9 at 3.3V<\/td>\n<\/tr>\n
Level Translation<\/td>\n5V to 3.3V (built-in diode)<\/td>\n<\/tr>\n
Paquete<\/td>\n14-pin TSSOP (5.0 \u00d7 4.4 mm)<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • Dual 5-bit bus switch with independent enable control<\/li>\n
  • Built-in level shifting from 5V to 3.3V via internal diode<\/li>\n
  • 5V-tolerant input\/output pins<\/li>\n
  • Low on-state resistance (7\u03a9 typical)<\/li>\n
  • Near-zero propagation delay through the switch<\/td>\n<\/ul>\n
  • Supports hot-insertion and live-insertion applications<\/li>\n

    Aplicaciones<\/h2>\n
      \n
    • PCI\/PCI-X bus isolation and level translation<\/li>\n
    • Hot-plug and live-insertion card slots<\/li>\n
    • 5V to 3.3V bus interface bridging<\/li>\n
    • Server and workstation backplane switching<\/li>\n
    • Computer peripheral interface switching<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The SN74CBTD3306CPWR is a 1-bit FET bus switch with level-shifting capability from Texas Instruments, packaged in a 14-pin TSSOP (PW) package. It features two independently controlled 5-bit bus switches with 5V-tolerant inputs and built-in level translation from 5V to 3.3V. The device is optimized for hot-insertion and live-insertion applications with low on-state resistance. […]<\/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],"tags":[1983],"chip_brand":[138],"class_list":["post-10642","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","tag-sn74cbtd3306cpwr","chip_brand-ti"],"acf":{"brief_explanation":"Dual 5-bit FET bus switch, 5V-to-3.3V level shift, 7\u03a9 Ron, TSSOP-14","date_code":"","package_case":"TSSOP-14 (5.0 \u00d7 4.4 \u00d7 1.0 mm)","in_stock":9356,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/sn74cbtd3306c.pdf","price":"$0.48 @ 1ku","product_introduction":"The SN74CBTD3306C is a dual 5-bit FET bus switch with integrated level-shifting capability from Texas Instruments. It contains two independently controlled 5-bit bus switches that can isolate or connect two 5-bit buses. The internal diode clamp provides automatic 5V-to-3.3V level translation, making it ideal for mixed-voltage system designs. The FET switch architecture provides near-zero propagation delay, enabling high-speed bus switching without adding latency. The device is particularly suited for hot-insertion applications where boards are inserted into live systems.","working_principle":"The SN74CBTD3306C uses N-channel MOSFET pass transistors as analog switches. When the enable (OE) pin is low, the MOSFET gate is driven to VCC, turning on the switch and creating a low-resistance path (7\u03a9 typical) between the A and B ports. When OE is high, the MOSFET is off, creating a high-impedance state that isolates the buses. The internal diode connected between VCC and the MOSFET gate limits the gate voltage, which in turn clamps the maximum voltage that can pass through the switch to VCC + Vdiode. This effectively provides 5V-to-3.3V level translation: a 5V signal on the A port is clamped to approximately 3.3V + 0.7V on the B port, protecting 3.3V logic from overvoltage while preserving signal integrity.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>1OE<\/td>Input<\/td>Switch 1 output enable \u2014 active low<\/td><\/tr>
      2-6<\/td>1A1-1A5<\/td>I\/O<\/td>Switch 1 port A \u2014 5-bit bus<\/td><\/tr>
      7<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>
      8-12<\/td>2B1-2B5<\/td>I\/O<\/td>Switch 2 port B \u2014 5-bit bus<\/td><\/tr>
      13<\/td>2OE<\/td>Input<\/td>Switch 2 output enable \u2014 active low<\/td><\/tr>
      14<\/td>VCC<\/td>Power<\/td>Supply voltage (3.3V)<\/td><\/tr><\/table>","application_scenarios":"
      • PCI\/PCI-X bus isolation between 5V and 3.3V subsystems<\/li>
      • Hot-plug card slot bus switching in servers<\/li>
      • 5V-to-3.3V bus bridging in mixed-voltage systems<\/li>
      • Computer peripheral interface signal routing<\/li>
      • Bus isolation for firmware upgrade paths<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>SN74CBTD3384CPWR<\/td>TSSOP-24<\/td>10-bit version of same family<\/td><\/tr>
        TI<\/td>SN74CBT3257CPWR<\/td>TSSOP-16<\/td>Quad 2:1 mux bus switch<\/td><\/tr>
        NXP<\/td>74CBTLV3257<\/td>TSSOP-16<\/td>Low-voltage bus switch<\/td><\/tr>
        onsemi<\/td>NB7V74M<\/td>QFN-24<\/td>10-bit bus switch with level shift<\/td><\/tr>
        Renesas<\/td>74CBTLV3257<\/td>TSSOP-16<\/td>Quad bus switch, similar function<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts\/10642","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/comments?post=10642"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts\/10642\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/media?parent=10642"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/categories?post=10642"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/tags?post=10642"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/chip_brand?post=10642"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}