{"id":6399,"date":"2026-06-16T02:45:48","date_gmt":"2026-06-16T02:45:48","guid":{"rendered":"https:\/\/materialparts.com\/sp3222euey-l-tr\/"},"modified":"2026-06-16T02:45:48","modified_gmt":"2026-06-16T02:45:48","slug":"sp3222euey-l-tr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/sp3222euey-l-tr\/","title":{"rendered":"SP3222EUEY-L\/TR"},"content":{"rendered":"

\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n

The SP3222EUEY-L\/TR from MaxLinear (formerly Exar\/Sipex) is a 3.0V to 5.5V RS-232 2-driver\/2-receiver transceiver with low-power shutdown. It meets true EIA\/TIA-232-F standards from a single 3.0V to 5.5V supply using an integrated charge pump requiring only 0.1\u00b5F capacitors. The device supports data rates up to 1000kbps and provides \u00b115kV ESD protection on RS-232 lines.<\/p>\n

\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
\u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n3.0V to 5.5V<\/td>\n<\/tr>\n
Number of Drivers\/Receivers<\/td>\n2\/2<\/td>\n<\/tr>\n
\u0645\u0639\u062f\u0644 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a<\/td>\n1000kbps<\/td>\n<\/tr>\n
\u062a\u0635\u0646\u064a\u0641 ESD (HBM)<\/td>\n\u00b115kV<\/td>\n<\/tr>\n
ESD Rating (IEC 61000-4-2 Air)<\/td>\n\u00b115kV<\/td>\n<\/tr>\n
ESD Rating (IEC 61000-4-2 Contact)<\/td>\n\u00b18kV<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0625\u064a\u0642\u0627\u0641 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n1\u00b5A (typical)<\/td>\n<\/tr>\n
External Capacitors<\/td>\n4 x 0.1\u00b5F<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0625\u0644\u0649 +85 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nTSSOP-20<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Meets true EIA\/TIA-232-F standards<\/li>\n
  • 1000kbps data rate<\/li>\n
  • 1\u00b5A low-power shutdown with receivers active<\/li>\n
  • Operates from single 3.0V to 5.5V supply<\/li>\n
  • Interoperable with RS-232 down to 2.7V<\/li>\n
  • Enhanced ESD: \u00b115kV HBM, \u00b115kV IEC Air, \u00b18kV IEC Contact<\/li>\n
  • Integrated high-efficiency charge pump<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Notebook and palmtop computers<\/li>\n
    • Handheld instruments<\/li>\n
    • Battery-powered RS-232 interfaces<\/li>\n
    • Industrial communication ports<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The SP3222EUEY-L\/TR from MaxLinear (formerly Exar\/Sipex) is a 3.0V to 5.5V RS-232 2-driver\/2-receiver transceiver with low-power shutdown. It meets true EIA\/TIA-232-F standards from a single 3.0V to 5.5V supply using an integrated charge pump requiring only 0.1\u00b5F capacitors. The device supports data rates up to 1000kbps and provides \u00b115kV ESD protection on RS-232 […]<\/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":[13,25],"tags":[],"chip_brand":[171],"class_list":["post-6399","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-microcontrollers-mcu","chip_brand-maxlinear"],"acf":{"brief_explanation":"3.0-5.5V RS-232 2Tx\/2Rx transceiver, 1Mbps, \u00b115kV ESD, 1\u00b5A shutdown, TSSOP-20","date_code":"","package_case":"TSSOP-20 (6.50 x 4.40 mm)","in_stock":5670,"datasheet":"https:\/\/www.maxlinear.com\/ds\/sp3222eu_sp3232eu.pdf","price":"$1.85 @ 1ku","product_introduction":"The SP3222EUEY-L\/TR is a 2-driver\/2-receiver RS-232 transceiver from MaxLinear designed for portable and handheld applications. It operates from a single 3.0V to 5.5V supply using an integrated high-efficiency charge pump that requires only four 0.1\u00b5F external capacitors. The device supports data rates up to 1000kbps for high-speed RS-232 communication. The SP3222EU variant includes a low-power shutdown mode that reduces supply current to less than 1\u00b5A while keeping receivers active for wake-up detection. Enhanced ESD protection of \u00b115kV (HBM and IEC Air) and \u00b18kV (IEC Contact) on RS-232 pins provides robust field reliability.","working_principle":"The SP3222EUEY-L\/TR uses a patented four-phase charge pump to generate \u00b15.5V supplies from a single 3.0V to 5.5V Vcc input, enabling true RS-232 output levels without dual supplies. The charge pump operates discontinuously, enabling when output voltages fall below 5.5V magnitude and disabling when above, minimizing power consumption. Drivers convert TTL\/CMOS logic levels to RS-232 compliant output levels with slew rate control for low EMI. Receivers convert RS-232 input levels back to TTL\/CMOS with 300mV hysteresis for noise immunity on long cables. Internal 5k\u03a9 pulldown resistors on receiver inputs ensure a defined HIGH output when inputs are floating. The SHDN pin disables drivers and charge pump for 1\u00b5A standby, while EN pin tri-states receiver outputs independently.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>
      1-3<\/td>C1+, V+, C1-<\/td>Power<\/td>Charge pump capacitor 1 connections<\/td><\/tr>
      4-6<\/td>C2+, C2-<\/td>Power<\/td>Charge pump capacitor 2 connections<\/td><\/tr>
      7<\/td>VCC<\/td>Power<\/td>Supply voltage (3.0V to 5.5V)<\/td><\/tr>
      8<\/td>R1IN<\/td>Input<\/td>RS-232 receiver 1 input<\/td><\/tr>
      9<\/td>R2IN<\/td>Input<\/td>RS-232 receiver 2 input<\/td><\/tr>
      10<\/td>GND<\/td>Ground<\/td>Device ground<\/td><\/tr>
      11<\/td>R2OUT<\/td>Output<\/td>Receiver 2 TTL output<\/td><\/tr>
      12<\/td>R1OUT<\/td>Output<\/td>Receiver 1 TTL output<\/td><\/tr>
      13<\/td>T1IN<\/td>Input<\/td>Driver 1 TTL input<\/td><\/tr>
      14<\/td>T2IN<\/td>Input<\/td>Driver 2 TTL input<\/td><\/tr>
      15<\/td>SHDN<\/td>Input<\/td>Shutdown control; LOW = shutdown mode<\/td><\/tr>
      16<\/td>EN<\/td>Input<\/td>Receiver enable; HIGH = tri-state receiver outputs<\/td><\/tr>
      17<\/td>T2OUT<\/td>Output<\/td>Driver 2 RS-232 output<\/td><\/tr>
      18<\/td>T1OUT<\/td>Output<\/td>Driver 1 RS-232 output<\/td><\/tr>
      19-20<\/td>V-, NC<\/td>Power<\/td>Negative charge pump output, No connect<\/td><\/tr><\/table>","application_scenarios":"
      • Portable Computers:<\/b> Provides complete RS-232 serial port for laptop and tablet connectivity with 1\u00b5A shutdown preserving battery life during idle periods<\/li>
      • Handheld Instruments:<\/b> Enables serial communication from battery-powered multimeters and data loggers with 3.0V minimum supply operation and \u00b115kV ESD withstand for field reliability<\/li>
      • Industrial RS-232 Interfaces:<\/b> Converts MCU UART to RS-232 levels for PLC and factory equipment communication with robust ESD protection and 300mV receiver hysteresis for noisy environments<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>ESD<\/th>Shutdown<\/th>Key Difference<\/th><\/tr>
        SP3232EUEY-L\/TR<\/td>MaxLinear<\/td>\u00b115kV<\/td>No<\/td>No shutdown mode, otherwise identical<\/td><\/tr>
        MAX3232ESE+T<\/td>ADI<\/td>\u00b115kV<\/td>Auto<\/td>Auto-shutdown, SOIC-16 package<\/td><\/tr>
        ST3232EBPR<\/td>ST<\/td>\u00b115kV<\/td>No<\/td>TSSOP-16, fewer pins<\/td><\/tr>
        SP3222ECY-L\/TR<\/td>MaxLinear<\/td>\u00b115kV<\/td>Yes<\/td>Same in TSSOP-20, commercial temp range<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6399","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/comments?post=6399"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6399\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=6399"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=6399"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=6399"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=6399"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}