{"id":2433,"date":"2026-05-20T03:57:24","date_gmt":"2026-05-20T03:57:24","guid":{"rendered":"https:\/\/materialparts.com\/max3232cpwr\/"},"modified":"2026-05-20T03:57:24","modified_gmt":"2026-05-20T03:57:24","slug":"max3232cpwr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/max3232cpwr\/","title":{"rendered":"MAX3232CPWR"},"content":{"rendered":"

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

The MAX3232CPWR from Texas Instruments is a 3V to 5.5V multichannel RS-232 line driver\/receiver with +\/-15kV ESD protection. It features 2 drivers and 2 receivers, operates at data rates up to 250kbps, and requires only four 0.1uF external capacitors. The TSSOP-16 package makes it ideal for space-constrained applications.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n
\u5236\u9020\u5546<\/td>\n\u5fb7\u5dde\u4eea\u5668<\/td>\n<\/tr>\n
Protocol<\/td>\nRS-232<\/td>\n<\/tr>\n
Drivers \/ Receivers<\/td>\n2 \/ 2<\/td>\n<\/tr>\n
\u6570\u636e\u901f\u7387<\/td>\n250 kbps<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n3V ~ 5.5V<\/td>\n<\/tr>\n
ESD Protection<\/td>\n+\/-15kV HBM<\/td>\n<\/tr>\n
Supply Current<\/td>\n300uA (typ)<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\n16-TSSOP (5 x 6.4mm)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n0\u00b0C ~ 70\u00b0C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Operates from single 3V to 5.5V supply<\/li>\n
  • +\/-15kV ESD protection on RS-232 bus pins (HBM)<\/li>\n
  • Meets TIA\/EIA-232-F and ITU V.28 standards<\/li>\n
  • Low supply current: 300uA typical<\/li>\n
  • Only 4 external 0.1uF capacitors required<\/li>\n
  • Accepts 5V logic input with 3.3V supply<\/li>\n
  • Data signaling rates up to 250kbps<\/li>\n
  • Dual charge-pump circuit generates RS-232 voltage levels<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Battery-powered systems and PDAs<\/li>\n
    • Industrial control and instrumentation<\/li>\n
    • Point-of-sale terminals<\/li>\n
    • Telecommunications equipment<\/li>\n
    • Computer peripherals and modems<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The MAX3232CPWR from Texas Instruments is a 3V to 5.5V multichannel RS-232 line driver\/receiver with +\/-15kV ESD protection. It features 2 drivers and 2 receivers, operates at data rates up to 250kbps, and requires only four 0.1uF external capacitors. The TSSOP-16 package makes it ideal for space-constrained applications. Key Specifications Manufacturer Texas Instruments […]<\/p>\n","protected":false},"author":2,"featured_media":2870,"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-2433","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-ti"],"acf":{"brief_explanation":"3V-5.5V dual RS-232 driver\/receiver, 250kbps, +\/-15kV ESD, 4x 0.1uF caps, TSSOP-16","date_code":"","package_case":"16-TSSOP (5 x 6.4 mm)","in_stock":12450,"datasheet":"https:\/\/www.ti.com\/product\/MAX3232","price":"$0.63 @ 1ku","product_introduction":"The Texas Instruments MAX3232CPWR is a multichannel RS-232 line driver and receiver designed for applications requiring RS-232 communication with low-voltage logic. It integrates two line drivers, two line receivers, and a dual charge-pump circuit that generates the necessary RS-232 voltage levels from a single 3V to 5.5V supply. The device provides +\/-15kV ESD protection on all RS-232 bus pins, ensuring robust operation in harsh environments. With a typical supply current of only 300uA and requiring just four small 0.1uF external capacitors, the MAX3232CPWR is well-suited for battery-powered and space-constrained applications.","working_principle":"The MAX3232CPWR converts TTL\/CMOS logic levels to RS-232 voltage levels and vice versa through three main subsystems: 1) Dual Charge Pump: The internal charge pump uses four external 0.1uF capacitors to generate +5.4V (V+) and -5.4V (V-) from a single 3V to 5.5V supply, providing the voltage swings required by RS-232 standard. 2) Drivers: The two line drivers invert and level-shift TTL\/CMOS logic inputs (0-5V) to RS-232 outputs (+\/-5.4V typical), meeting the TIA\/EIA-232-F minimum +\/-5V requirement. 3) Receivers: The two line receivers accept RS-232 input levels (up to +\/-25V) and convert them to TTL\/CMOS logic outputs, with inversion and threshold detection at approximately 1.4V.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>C1+<\/td>Capacitor<\/td>Positive terminal of charge pump capacitor C1<\/td><\/tr>
      2<\/td>V+<\/td>Output<\/td>Positive charge pump output (+5.4V typical)<\/td><\/tr>
      3<\/td>C1-<\/td>Capacitor<\/td>Negative terminal of charge pump capacitor C1<\/td><\/tr>
      4<\/td>C2+<\/td>Capacitor<\/td>Positive terminal of charge pump capacitor C2<\/td><\/tr>
      5<\/td>C2-<\/td>Capacitor<\/td>Negative terminal of charge pump capacitor C2<\/td><\/tr>
      6<\/td>V-<\/td>Output<\/td>Negative charge pump output (-5.4V typical)<\/td><\/tr>
      7<\/td>DOUT2<\/td>Output<\/td>RS-232 driver output 2<\/td><\/tr>
      8<\/td>RIN2<\/td>Input<\/td>RS-232 receiver input 2<\/td><\/tr>
      9<\/td>ROUT2<\/td>Output<\/td>TTL\/CMOS receiver output 2<\/td><\/tr>
      10<\/td>DIN2<\/td>Input<\/td>TTL\/CMOS driver input 2<\/td><\/tr>
      11<\/td>DIN1<\/td>Input<\/td>TTL\/CMOS driver input 1<\/td><\/tr>
      12<\/td>ROUT1<\/td>Output<\/td>TTL\/CMOS receiver output 1<\/td><\/tr>
      13<\/td>RIN1<\/td>Input<\/td>RS-232 receiver input 1<\/td><\/tr>
      14<\/td>DOUT1<\/td>Output<\/td>RS-232 driver output 1<\/td><\/tr>
      15<\/td>GND<\/td>Ground<\/td>Ground<\/td><\/tr>
      16<\/td>VCC<\/td>Power<\/td>Supply voltage (3V to 5.5V)<\/td><\/tr><\/table>","application_scenarios":"
      • Battery-powered portable devices requiring RS-232 communication<\/li>
      • Industrial control systems and PLC serial interfaces<\/li>
      • Point-of-sale (POS) terminals and payment systems<\/li>
      • Telecommunications equipment and modem interfaces<\/li>
      • Computer peripherals with legacy serial ports<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>MAX3232ECPWR<\/td>16-TSSOP<\/td>+\/-15kV IEC ESD, 0-70C<\/td><\/tr>
        TI<\/td>MAX3232IPWR<\/td>16-TSSOP<\/td>Industrial temp -40C to 85C<\/td><\/tr>
        Maxim<\/td>MAX3232ESE+T<\/td>16-SOIC<\/td>235kbps, SOIC package<\/td><\/tr>
        TI<\/td>SN65C3232<\/td>16-TSSOP<\/td>1Mbps, pin-compatible upgrade<\/td><\/tr>
        ST<\/td>ST3232EBPR<\/td>16-TSSOP<\/td>3V-5.5V, 250kbps<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2433","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=2433"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2433\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media\/2870"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=2433"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=2433"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=2433"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=2433"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}