{"id":6653,"date":"2026-06-18T16:01:05","date_gmt":"2026-06-18T16:01:05","guid":{"rendered":"https:\/\/materialparts.com\/max232ecpe\/"},"modified":"2026-06-18T16:01:05","modified_gmt":"2026-06-18T16:01:05","slug":"max232ecpe","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/max232ecpe\/","title":{"rendered":"MAX232ECPE"},"content":{"rendered":"

Productos<\/h2>\n

The MAX232ECPE from Analog Devices (Maxim Integrated) is a dual RS-232 driver\/receiver that converts between 5V TTL\/CMOS logic levels and RS-232 (+\/-10V) levels. With an internal charge pump generating +\/-10V from a single 5V supply, it requires only 4 external capacitors. Packaged in 16-PDIP.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n
Drivers<\/td>\n2 (TTL to RS-232)<\/td>\n<\/tr>\n
Receivers<\/td>\n2 (RS-232 to TTL)<\/td>\n<\/tr>\n
Tensi\u00f3n de alimentaci\u00f3n<\/td>\n5V (single supply)<\/td>\n<\/tr>\n
RS-232 Output Voltage<\/td>\n+\/-9V (typ with 5V supply)<\/td>\n<\/tr>\n
Velocidad de datos<\/td>\n120kbps (guaranteed)<\/td>\n<\/tr>\n
ESD Protection<\/td>\n+\/-15kV HBM on RS-232 pins<\/td>\n<\/tr>\n
External Capacitors<\/td>\n4 x 1uF (required for charge pump)<\/td>\n<\/tr>\n
Paquete<\/td>\n16-PDIP<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40 to +85 C<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • 2 drivers + 2 receivers in one package<\/li>\n
  • Internal charge pump: 5V to +\/-10V<\/li>\n
  • Only 4 external capacitors needed<\/li>\n
  • +\/-15kV ESD protection on RS-232 pins<\/li>\n
  • 120kbps data rate<\/li>\n
  • Industry-standard RS-232 interface IC<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • MCU RS-232 serial communication<\/li>\n
    • PC serial port interface<\/li>\n
    • Industrial RS-232 communication<\/li>\n
    • Modem and terminal interfaces<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The MAX232ECPE from Analog Devices (Maxim Integrated) is a dual RS-232 driver\/receiver that converts between 5V TTL\/CMOS logic levels and RS-232 (+\/-10V) levels. With an internal charge pump generating +\/-10V from a single 5V supply, it requires only 4 external capacitors. Packaged in 16-PDIP. Key Specifications Drivers 2 (TTL to RS-232) Receivers 2 […]<\/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":[13,20],"tags":[],"chip_brand":[],"class_list":["post-6653","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics"],"acf":{"brief_explanation":"Dual RS-232 driver\/receiver, 5V to +\/-10V, charge pump, 16-PDIP","date_code":"","package_case":"16-PDIP","in_stock":2688,"datasheet":"https:\/\/www.analog.com\/media\/en\/technical-documentation\/data-sheets\/MAX220-MAX249.pdf","price":"$2.50 @ 1ku","product_introduction":"The MAX232ECPE from Analog Devices (Maxim Integrated) is the industry-standard dual RS-232 driver\/receiver that converts between 5V TTL\/CMOS logic levels and RS-232 voltage levels (+\/-9V typical). The internal charge pump doubles and inverts the 5V supply to generate approximately +\/-10V, requiring only 4 external 1uF capacitors for operation. Two drivers convert TTL transmit signals to RS-232 levels, and two receivers convert RS-232 receive signals to TTL levels. The E version provides +\/-15kV ESD protection on the RS-232 pins, exceeding the IEC 1000-4-2 requirements. The 120kbps guaranteed data rate supports all standard RS-232 baud rates up to 115.2kbps. The MAX232 is the most recognized RS-232 interface IC and has been the default choice for MCU serial communication since its introduction in 1987.","working_principle":"The MAX232ECPE uses a dual charge pump to generate the positive and negative supply voltages required for RS-232 transmission. The first charge pump (voltage doubler) uses C1 to charge to VCC during one half-cycle and then stacks this voltage on top of VCC during the other half-cycle, producing V+ = 2 x VCC = approximately 10V. The second charge pump (voltage inverter) uses C2 to charge from V+ to ground, then connects C2 between V+ and the V- output, producing V- = approximately -10V. These generated voltages power the two RS-232 drivers. Each driver is an inverting level shifter: a TTL HIGH input produces a negative RS-232 output (approximately -9V), and a TTL LOW input produces a positive RS-232 output (approximately +9V). The receivers are inverting comparators with 0.8V\/2.4V thresholds per RS-232 specifications.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>C1+<\/td>Charge pump capacitor 1 positive<\/td><\/tr>
      2<\/td>V+<\/td>+10V generated output (charge pump)<\/td><\/tr>
      3<\/td>C1-<\/td>Charge pump capacitor 1 negative<\/td><\/tr>
      4<\/td>C2+<\/td>Charge pump capacitor 2 positive<\/td><\/tr>
      5<\/td>C2-<\/td>Charge pump capacitor 2 negative<\/td><\/tr>
      6<\/td>V-<\/td>-10V generated output (charge pump)<\/td><\/tr>
      7<\/td>T2OUT<\/td>RS-232 driver 2 output<\/td><\/tr>
      8<\/td>R2IN<\/td>RS-232 receiver 2 input<\/td><\/tr>
      9<\/td>R2OUT<\/td>TTL receiver 2 output<\/td><\/tr>
      10<\/td>T2IN<\/td>TTL driver 2 input<\/td><\/tr>
      11<\/td>T1IN<\/td>TTL driver 1 input<\/td><\/tr>
      12<\/td>R1OUT<\/td>TTL receiver 1 output<\/td><\/tr>
      13<\/td>R1IN<\/td>RS-232 receiver 1 input<\/td><\/tr>
      14<\/td>T1OUT<\/td>RS-232 driver 1 output<\/td><\/tr>
      15<\/td>GND<\/td>Ground<\/td><\/tr>
      16<\/td>VCC<\/td>+5V supply<\/td><\/tr><\/table>","application_scenarios":"
      • MCU UART to RS-232 serial port conversion with 5V-only supply<\/li>
      • PC serial port interface with +\/-15kV ESD protection<\/li>
      • Industrial RS-232 communication at up to 120kbps with charge pump<\/li>
      • Modem and terminal interface with 2 drivers + 2 receivers<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        MAX233<\/td>ADI<\/td>No external capacitors (internal charge pump caps)<\/td><\/tr>
        ST232BD<\/td>ST<\/td>Pin-compatible, 3.3V tolerant inputs<\/td><\/tr>
        HIN232CP<\/td>Intersil\/Renesas<\/td>Pin-compatible, lower cost<\/td><\/tr>
        SP3232EBCP<\/td>MaxLinear<\/td>3.3V version, pin-compatible<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/6653","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=6653"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/6653\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=6653"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=6653"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=6653"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=6653"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}