{"id":2977,"date":"2026-05-29T00:35:02","date_gmt":"2026-05-29T00:35:02","guid":{"rendered":"https:\/\/materialparts.com\/max3232ipw\/"},"modified":"2026-05-29T00:35:02","modified_gmt":"2026-05-29T00:35:02","slug":"max3232ipw","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/max3232ipw\/","title":{"rendered":"MAX3232IPW"},"content":{"rendered":"

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

The MAX3232IPW from Texas Instruments is a 3.3V-powered, dual-channel RS-232 transceiver with Enhanced ESD protection. It provides two drivers and two receivers, supporting data rates up to 250kbps while meeting TIA\/EIA-232-F requirements. Housed in a 16-pin TSSOP package, it requires only four 0.1\u03bcF external capacitors for the charge pump, enabling compact designs.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n
Category<\/td>\nRS-232 Transceiver<\/td>\n<\/tr>\n
Number of Drivers\/Receivers<\/td>\n2 \/ 2<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n3.0V ~ 5.5V<\/td>\n<\/tr>\n
\u6570\u636e\u901f\u7387<\/td>\n250 kbps<\/td>\n<\/tr>\n
ESD Protection<\/td>\n\u00b115kV HBM (IEC 61000-4-2)<\/td>\n<\/tr>\n
Charge Pump Capacitors<\/td>\n4 x 0.1\u03bcF<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C ~ 85\u00b0C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\n16-TSSOP<\/td>\n<\/tr>\n
\u90e8\u4ef6\u72b6\u6001<\/td>\n\u6d3b\u8dc3<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • 3V to 5.5V single supply operation<\/li>\n
  • Two drivers and two receivers in one package<\/li>\n
  • Enhanced ESD protection: \u00b115kV HBM on RS-232 pins<\/li>\n
  • Only four 0.1\u03bcF external capacitors required<\/li>\n
  • 250kbps data rate supports standard RS-232 applications<\/li>\n
  • Low supply current: 1mA typical<\/li>\n
  • Compatible with MAX3232 industry standard pinout<\/li>\n
  • Auto-powerdown feature available in some variants<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • RS-232 serial communication interfaces<\/li>\n
    • Embedded system debug ports<\/li>\n
    • Industrial automation serial links<\/li>\n
    • Point-of-sale terminals<\/li>\n
    • Battery-powered RS-232 devices<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The MAX3232IPW from Texas Instruments is a 3.3V-powered, dual-channel RS-232 transceiver with Enhanced ESD protection. It provides two drivers and two receivers, supporting data rates up to 250kbps while meeting TIA\/EIA-232-F requirements. Housed in a 16-pin TSSOP package, it requires only four 0.1\u03bcF external capacitors for the charge pump, enabling compact designs. Key […]<\/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-2977","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-ti"],"acf":{"brief_explanation":"3.3V dual RS-232 transceiver, 2Tx\/2Rx, 250kbps, Enhanced ESD, 16-TSSOP, 4x0.1\u03bcF caps","date_code":"","package_case":"16-TSSOP (5.0x4.4mm)","in_stock":7740,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/max3232.pdf","price":"\/tmp\/tmpgrnmkkh9.sh.95 @ 1ku","product_introduction":"The MAX3232IPW is a 3.3V-powered, dual-channel RS-232 line driver\/receiver from Texas Instruments, designed for true RS-232 communication from a single 3.0V to 5.5V supply. The device integrates two drivers and two receivers with an onboard dual charge pump that generates the required \u00b15.5V RS-232 voltage levels from the single low-voltage supply. Enhanced ESD protection of \u00b115kV HBM (per IEC 61000-4-2) on all RS-232 pins provides robust protection against electrostatic discharge events. The device requires only four external 0.1\u03bcF charge pump capacitors, minimizing board space. With a typical supply current of 1mA, it is suitable for battery-powered and low-power applications.","working_principle":"The MAX3232IPW uses an integrated dual charge pump to generate \u00b15.5V supply rails from a single 3.0V to 5.5V input. The charge pump consists of a voltage doubler and a voltage inverter, each requiring two external 0.1\u03bcF capacitors. The drivers convert TTL\/CMOS logic-level signals to RS-232-compliant voltage levels (\u00b15V minimum swing). The receivers convert RS-232 input signals to TTL\/CMOS logic levels with hysteresis for noise immunity. The internal regulation ensures RS-232 output levels remain compliant across the full supply voltage range and under load conditions.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>
      1<\/td>C1+<\/td>PWR<\/td>Charge pump capacitor 1 positive<\/td><\/tr>
      2<\/td>V+<\/td>PWR<\/td>Doubled positive voltage output<\/td><\/tr>
      3<\/td>C1-<\/td>PWR<\/td>Charge pump capacitor 1 negative<\/td><\/tr>
      4<\/td>C2+<\/td>PWR<\/td>Charge pump capacitor 2 positive<\/td><\/tr>
      5<\/td>C2-<\/td>PWR<\/td>Charge pump capacitor 2 negative<\/td><\/tr>
      6<\/td>V-<\/td>PWR<\/td>Inverted negative voltage output<\/td><\/tr>
      7<\/td>DOUT2<\/td>O<\/td>RS-232 driver 2 output<\/td><\/tr>
      8<\/td>RIN2<\/td>I<\/td>RS-232 receiver 2 input<\/td><\/tr>
      9<\/td>ROUT2<\/td>O<\/td>TTL\/CMOS receiver 2 output<\/td><\/tr>
      10<\/td>DIN2<\/td>I<\/td>TTL\/CMOS driver 2 input<\/td><\/tr>
      11<\/td>DIN1<\/td>I<\/td>TTL\/CMOS driver 1 input<\/td><\/tr>
      12<\/td>ROUT1<\/td>O<\/td>TTL\/CMOS receiver 1 output<\/td><\/tr>
      13<\/td>RIN1<\/td>I<\/td>RS-232 receiver 1 input<\/td><\/tr>
      14<\/td>DOUT1<\/td>O<\/td>RS-232 driver 1 output<\/td><\/tr>
      15<\/td>GND<\/td>GND<\/td>Ground<\/td><\/tr>
      16<\/td>VCC<\/td>PWR<\/td>Supply voltage (3.0V-5.5V)<\/td><\/tr><\/table>","application_scenarios":"
      • Debug UART<\/b>: RS-232 serial port for embedded system development and field diagnostics<\/li>
      • Industrial Serial<\/b>: Communication link between PLCs and legacy serial devices<\/li>
      • POS Terminals<\/b>: RS-232 interface for barcode scanners, receipt printers, and cash drawers<\/li>
      • Battery Devices<\/b>: Low-power 3.3V RS-232 for portable data loggers<\/li>
      • Modem Interfaces<\/b>: DTE\/DCE serial communication at up to 250kbps<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        MAX3232CSE<\/td>Texas Instruments<\/td>SOIC-16 package variant<\/td><\/tr>
        SP3232EEN<\/td>Sipex\/Exar<\/td>Pin-compatible, similar specs<\/td><\/tr>
        ST3232EBPR<\/td>STMicroelectronics<\/td>3V RS-232, TSSOP-16<\/td><\/tr>
        ICL3232CPZ<\/td>Renesas\/Intersil<\/td>Pin-compatible, 250kbps<\/td><\/tr>
        MAX3221IPW<\/td>Texas Instruments<\/td>1Tx\/1Rx, auto-powerdown, lower power<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2977","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=2977"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2977\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=2977"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=2977"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=2977"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=2977"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}