{"id":3665,"date":"2026-06-07T13:32:27","date_gmt":"2026-06-07T13:32:27","guid":{"rendered":"https:\/\/materialparts.com\/sn3257qpwrq1\/"},"modified":"2026-06-07T13:32:27","modified_gmt":"2026-06-07T13:32:27","slug":"sn3257qpwrq1","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/sn3257qpwrq1\/","title":{"rendered":"SN3257QPWRQ1"},"content":{"rendered":"

Productos<\/h2>\n

The SN3257QPWRQ1 from Texas Instruments is an AEC-Q100 qualified quad-channel 2:1 multiplexer\/demultiplexer with powered-off protection and fail-safe logic in a TSSOP-16 package. With 1.8V to 5.5V supply range, 1.5Ohm on-resistance, and 300MHz bandwidth, it is designed for automotive signal routing applications.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n
Configuraci\u00f3n<\/td>\n4-channel 2:1 Mux\/Demux (SPDT)<\/td>\n<\/tr>\n
Tensi\u00f3n de alimentaci\u00f3n<\/td>\n1.8V to 5.5V<\/td>\n<\/tr>\n
On-Resistance (Ron)<\/td>\n1.5 Ohm (typ @ 5V)<\/td>\n<\/tr>\n
Bandwidth<\/td>\n300 MHz (-3dB)<\/td>\n<\/tr>\n
Charge Injection<\/td>\n-5 pC (typ)<\/td>\n<\/tr>\n
Off-Isolation<\/td>\n-64 dB @ 10MHz<\/td>\n<\/tr>\n
Powered-Off Protection<\/td>\nYes (I\/O high-impedance when VDD=0)<\/td>\n<\/tr>\n
Fail-Safe Logic<\/td>\nYes (select pins tolerant above VDD)<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40 to +125 C<\/td>\n<\/tr>\n
Cualificaci\u00f3n<\/td>\nAEC-Q100 Grade 1<\/td>\n<\/tr>\n
Paquete<\/td>\nTSSOP-16<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • AEC-Q100 Grade 1 qualified for automotive<\/li>\n
  • Quad SPDT (4-channel 2:1) multiplexer<\/li>\n
  • 1.5Ohm low on-resistance at 5V<\/li>\n
  • 300MHz wide bandwidth<\/li>\n
  • Powered-off protection (I\/O hi-Z when VDD=0)<\/li>\n
  • Fail-safe logic pins (tolerate voltages above VDD)<\/li>\n
  • 1.8V to 5.5V supply range<\/li>\n
  • Bidirectional signal path<\/li>\n
  • Break-before-make switching<\/li>\n
  • -5pC low charge injection<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Automotive signal routing and sensor multiplexing<\/li>\n
    • Battery management system cell monitoring<\/li>\n
    • Audio and video signal switching<\/li>\n
    • Industrial control signal routing<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The SN3257QPWRQ1 from Texas Instruments is an AEC-Q100 qualified quad-channel 2:1 multiplexer\/demultiplexer with powered-off protection and fail-safe logic in a TSSOP-16 package. With 1.8V to 5.5V supply range, 1.5Ohm on-resistance, and 300MHz bandwidth, it is designed for automotive signal routing applications. Key Specifications Configuration 4-channel 2:1 Mux\/Demux (SPDT) Supply Voltage 1.8V to 5.5V […]<\/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-3665","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-ti"],"acf":{"brief_explanation":"Quad 2:1 mux, AEC-Q100, 1.5Ohm Ron, 300MHz, powered-off prot, TSSOP-16","date_code":"","package_case":"TSSOP-16 (5.0 x 4.4 x 1.1 mm)","in_stock":10948,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/sn3257-q1.pdf","price":"$0.85 @ 1ku","product_introduction":"The SN3257QPWRQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified quad-channel 2:1 (SPDT) multiplexer\/demultiplexer in a TSSOP-16 package. The Q1 suffix denotes automotive qualification, PWR indicates TSSOP package, and R denotes tape and reel. With 1.5Ohm typical on-resistance at 5V, 300MHz bandwidth, and powered-off protection, it is specifically designed for automotive signal routing. The fail-safe logic feature allows the select pins to be driven by external logic even when VDD is not present, preventing back-powering of the device. The powered-off protection ensures all signal paths become high-impedance when the supply is removed, protecting downstream circuitry.","working_principle":"The SN3257-Q1 operates through four subsystems: (1) Analog Switch Array: Four independent SPDT (single-pole double-throw) analog switches route one of two inputs to a common output per channel. The switches are bidirectional, supporting both multiplexing (2 inputs to 1 output) and demultiplexing (1 input to 2 outputs). (2) Digital Control: Two select pins (S0, S1) control all four channels simultaneously. When S=0, the normally-closed (NC) path is selected; when S=1, the normally-open (NO) path is selected. An enable pin (EN) can force all switches open. (3) Powered-Off Protection: When VDD = 0V, an internal circuit detects the absence of power and forces all I\/O pins to a high-impedance state, preventing current flow from signal sources through the device. (4) Fail-Safe Logic: The select and enable inputs have special circuitry that tolerates voltages above VDD, preventing parasitic conduction when control signals are present before power is applied.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>
      1<\/td>1IN1<\/td>Analog<\/td>Channel 1, input 1 (NC path)<\/td><\/tr>
      2<\/td>1IN2<\/td>Analog<\/td>Channel 1, input 2 (NO path)<\/td><\/tr>
      3<\/td>2IN1<\/td>Analog<\/td>Channel 2, input 1 (NC path)<\/td><\/tr>
      4<\/td>2IN2<\/td>Analog<\/td>Channel 2, input 2 (NO path)<\/td><\/tr>
      5<\/td>EN<\/td>Input<\/td>Enable (active low)<\/td><\/tr>
      6, 7<\/td>S0, S1<\/td>Input<\/td>Select inputs (fail-safe)<\/td><\/tr>
      8<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>
      9-12<\/td>D1-D4<\/td>Analog<\/td>Channel outputs<\/td><\/tr>
      13<\/td>4IN2<\/td>Analog<\/td>Channel 4, input 2 (NO path)<\/td><\/tr>
      14<\/td>4IN1<\/td>Analog<\/td>Channel 4, input 1 (NC path)<\/td><\/tr>
      15<\/td>3IN2<\/td>Analog<\/td>Channel 3, input 2 (NO path)<\/td><\/tr>
      16<\/td>VDD<\/td>Power<\/td>Supply voltage (1.8-5.5V)<\/td><\/tr><\/table>","application_scenarios":"
      • Automotive BMS cell voltage multiplexing with powered-off protection preventing battery drain<\/li>
      • Sensor signal routing in automotive ECUs with AEC-Q100 Grade 1 reliability<\/li>
      • Audio signal source selection with 300MHz bandwidth and -5pC low charge injection<\/li>
      • Redundant signal path switching with fail-safe logic tolerating hot-swap scenarios<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Channels<\/th>Ron<\/th>Notes<\/th><\/tr>
        TS5A3359QRTERQ1<\/td>TI<\/td>5:1<\/td>10Ohm<\/td>5-channel mux<\/td><\/tr>
        NC7SB3157P6X<\/td>onsemi<\/td>1<\/td>1Ohm<\/td>Single SPDT<\/td><\/tr>
        ADG732BCPZ<\/td>ADI<\/td>32:1<\/td>4Ohm<\/td>High channel count<\/td><\/tr>
        SN3257PW<\/td>TI<\/td>4<\/td>1.5Ohm<\/td>Non-auto grade<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/3665","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/comments?post=3665"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/3665\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=3665"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=3665"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=3665"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=3665"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}