{"id":2644,"date":"2026-05-24T01:31:44","date_gmt":"2026-05-24T01:31:44","guid":{"rendered":"https:\/\/materialparts.com\/sp3232eey-l-tr\/"},"modified":"2026-05-24T01:32:24","modified_gmt":"2026-05-24T01:32:24","slug":"sp3232eey-l-tr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/sp3232eey-l-tr\/","title":{"rendered":"SP3232EEY-L\/TR"},"content":{"rendered":"

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

The SP3232EEY-L\/TR from MaxLinear is a 3.0V to 5.5V RS-232 transceiver with 250kbps data rate and +\/-15kV ESD protection in a 16-TSSOP package. Pin-compatible with MAX3232, it provides 2 drivers and 2 receivers with only 4 external capacitors.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n
Protocol<\/td>\nRS-232<\/td>\n<\/tr>\n
Drivers \/ Receivers<\/td>\n2 \/ 2<\/td>\n<\/tr>\n
\u6570\u636e\u901f\u7387<\/td>\n250kbps<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n3.0V ~ 5.5V<\/td>\n<\/tr>\n
ESD Protection<\/td>\n\u00b115kV (HBM)<\/td>\n<\/tr>\n
External Capacitors<\/td>\n4 x 0.1uF<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\n16-TSSOP<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • 3.0V to 5.5V single supply operation<\/li>\n
  • 2 drivers + 2 receivers<\/li>\n
  • \u00b115kV ESD protection on RS-232 pins<\/li>\n
  • Only 4 external 0.1uF capacitors<\/li>\n
  • Pin-compatible with MAX3232<\/li>\n
  • Auto-powerdown with 1uA standby current<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Embedded system serial port interface<\/li>\n
    • Industrial equipment RS-232 communication<\/li>\n
    • Point-of-sale terminal serial ports<\/li>\n
    • Debug console interface<\/li>\n
    • Medical device serial programming<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The SP3232EEY-L\/TR from MaxLinear is a 3.0V to 5.5V RS-232 transceiver with 250kbps data rate and +\/-15kV ESD protection in a 16-TSSOP package. Pin-compatible with MAX3232, it provides 2 drivers and 2 receivers with only 4 external capacitors. Key Specifications Protocol RS-232 Drivers \/ Receivers 2 \/ 2 Data Rate 250kbps Supply Voltage […]<\/p>\n","protected":false},"author":2,"featured_media":2684,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,20],"tags":[],"chip_brand":[171],"class_list":["post-2644","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-maxlinear"],"acf":{"brief_explanation":"3-5.5V RS-232 transceiver, 2TX\/2RX, 250kbps, \u00b115kV ESD, 16-TSSOP","date_code":"","package_case":"16-TSSOP (5.0 x 4.4 x 1.0 mm)","in_stock":10696,"datasheet":"https:\/\/www.maxlinear.com\/product\/interface\/rs-232\/sp3232e","price":"$1.10 @ 1ku","product_introduction":"The SP3232EEY-L\/TR from MaxLinear is a 3.0V to 5.5V RS-232 transceiver providing 2 drivers and 2 receivers in a compact 16-pin TSSOP package. Pin-compatible with the industry-standard MAX3232, it offers a cost-effective alternative. The internal charge pump generates +\/-5.5V RS-232 levels from a single supply using only 4 external 0.1uF capacitors. \u00b115kV HBM ESD protection on RS-232 pins provides robust protection. Auto-powerdown reduces supply current to 1uA when no valid RS-232 signal is detected.","working_principle":"The SP3232E uses a dual charge pump to generate positive and negative voltage rails from a single 3.0V to 5.5V supply. The first stage doubles VCC to approximately +5.5V, and the second inverts this to approximately -5.5V. These rails power the driver output stages which swing between +5.5V and -5.5V for RS-232 compliance. The receivers accept RS-232 input levels and convert to TTL\/CMOS logic levels. Auto-powerdown monitors receiver inputs and enters low-power mode when no valid signal is detected.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>C1+<\/td>Cap<\/td>Charge pump capacitor 1 positive<\/td><\/tr>
      2<\/td>V+<\/td>Power<\/td>+5.5V generated rail<\/td><\/tr>
      3<\/td>C1-<\/td>Cap<\/td>Charge pump capacitor 1 negative<\/td><\/tr>
      4<\/td>C2+<\/td>Cap<\/td>Charge pump capacitor 2 positive<\/td><\/tr>
      5<\/td>C2-<\/td>Cap<\/td>Charge pump capacitor 2 negative<\/td><\/tr>
      6<\/td>V-<\/td>Power<\/td>-5.5V generated rail<\/td><\/tr>
      7<\/td>T2OUT<\/td>Output<\/td>Driver 2 RS-232 output<\/td><\/tr>
      8<\/td>R2IN<\/td>Input<\/td>Receiver 2 RS-232 input<\/td><\/tr>
      9<\/td>R2OUT<\/td>Output<\/td>Receiver 2 TTL output<\/td><\/tr>
      10<\/td>T2IN<\/td>Input<\/td>Driver 2 TTL input<\/td><\/tr>
      11<\/td>T1IN<\/td>Input<\/td>Driver 1 TTL input<\/td><\/tr>
      12<\/td>R1OUT<\/td>Output<\/td>Receiver 1 TTL output<\/td><\/tr>
      13<\/td>R1IN<\/td>Input<\/td>Receiver 1 RS-232 input<\/td><\/tr>
      14<\/td>T1OUT<\/td>Output<\/td>Driver 1 RS-232 output<\/td><\/tr>
      15<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>
      16<\/td>VCC<\/td>Power<\/td>Supply voltage (3.0-5.5V)<\/td><\/tr><\/table>","application_scenarios":"
      • Embedded system UART-to-RS-232 debug console<\/li>
      • Industrial equipment serial communication port<\/li>
      • POS terminal serial printer and scanner interface<\/li>
      • Medical device programming and data download<\/li>
      • Networking equipment management serial port<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        ADI (Maxim)<\/td>MAX3232ESE+T<\/td>16-SOIC<\/td>Pin-compatible in SOIC package<\/td><\/tr>
        TI<\/td>MAX3232CDR<\/td>16-SOIC<\/td>Pin-compatible, equivalent<\/td><\/tr>
        ST<\/td>ST3232EBDR<\/td>16-SOIC<\/td>3-5.5V RS-232 transceiver<\/td><\/tr>
        MaxLinear<\/td>SP3232ECA-L\/TR<\/td>16-SOIC<\/td>Same function, SOIC package<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2644","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=2644"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2644\/revisions"}],"predecessor-version":[{"id":2649,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2644\/revisions\/2649"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media\/2684"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=2644"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=2644"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=2644"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=2644"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}