{"id":6490,"date":"2026-06-17T03:22:38","date_gmt":"2026-06-17T03:22:38","guid":{"rendered":"https:\/\/materialparts.com\/max3232ese-2\/"},"modified":"2026-06-17T03:22:38","modified_gmt":"2026-06-17T03:22:38","slug":"max3232ese-2","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/max3232ese-2\/","title":{"rendered":"MAX3232ESE+"},"content":{"rendered":"<h2>Productos<\/h2>\n<p>The MAX3232ESE+ is a 3.0V to 5.5V, 1 Mbps, dual-channel RS-232 transceiver from Analog Devices (formerly Maxim Integrated) with enhanced \u00b115 kV ESD protection. It features 2 drivers and 2 receivers, requires only four 0.1 \u00b5F charge pump capacitors, and is housed in a 16-pin narrow SOIC package for industrial temperature operation.<\/p>\n<h2>Especificaciones<\/h2>\n<ul>\n<li>Supply Voltage: 3.0V ~ 5.5V (single supply)<\/li>\n<li>Data Rate: Up to 1 Mbps<\/li>\n<li>Drivers: 2<\/li>\n<li>Receivers: 2<\/li>\n<li>ESD Protection: \u00b115 kV HBM on RS-232 pins<\/li>\n<li>Guaranteed Slew Rate: 24 V\/\u00b5s minimum<\/li>\n<li>Supply Current: 1 mA typical (no load)<\/li>\n<li>Shutdown Current: 1 \u00b5A max<\/li>\n<li>Charge Pump Capacitors: 4 x 0.1 \u00b5F<\/li>\n<li>Operating Temperature: -40\u00b0C ~ +85\u00b0C<\/li>\n<li>Package: SOIC-16 (narrow, 150 mil)<\/li>\n<li>Pin-compatible with MAX232\/MAX242<\/li>\n<\/ul>\n<h2>Caracter\u00edsticas<\/h2>\n<ul>\n<li>\u00b115 kV ESD protection on all RS-232 I\/O pins (IEC 1000-4-2)<\/li>\n<li>Single 3.0V to 5.5V supply operation<\/li>\n<li>Low-power shutdown mode (1 \u00b5A max)<\/li>\n<li>Only four external 0.1 \u00b5F capacitors needed<\/li>\n<li>Pin-compatible with industry-standard MAX232\/242<\/li>\n<li>3-state driver and receiver outputs<\/li>\n<li>Meets all RS-232D and V.28 specifications<\/li>\n<li>Receive inputs tolerant to \u00b125V<\/li>\n<\/ul>\n<h2>Aplicaciones<\/h2>\n<ul>\n<li>Battery-powered RS-232 communication<\/li>\n<li>Handheld devices and PDAs<\/li>\n<li>Notebook computer serial ports<\/li>\n<li>Industrial control and instrumentation<\/li>\n<li>Point-of-sale terminals<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Product Overview The MAX3232ESE+ is a 3.0V to 5.5V, 1 Mbps, dual-channel RS-232 transceiver from Analog Devices (formerly Maxim Integrated) with enhanced \u00b115 kV ESD protection. It features 2 drivers and 2 receivers, requires only four 0.1 \u00b5F charge pump capacitors, and is housed in a 16-pin narrow SOIC package for industrial temperature operation. Key [&hellip;]<\/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":[165],"class_list":["post-6490","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-adi"],"acf":{"brief_explanation":"3.0-5.5V RS-232 transceiver, 2Tx\/2Rx, 1Mbps, \u00b115kV ESD, SOIC-16, 4x0.1\u00b5F caps","date_code":"","package_case":"SOIC-16 (narrow)","in_stock":12400,"datasheet":"https:\/\/www.analog.com\/en\/products\/MAX3232E.html","price":"$2.18","product_introduction":"The MAX3232ESE+ from Analog Devices is a 3.0V to 5.5V powered RS-232 transceiver that integrates 2 drivers and 2 receivers with enhanced \u00b115 kV ESD protection on all RS-232 interface pins. The device uses an on-chip charge pump to generate the \u00b15.5V supplies needed for RS-232 output levels from a single 3.0V to 5.5V supply, requiring only four 0.1 \u00b5F external capacitors. The ESE+ suffix indicates narrow SOIC-16 package with industrial temperature range. The device supports data rates up to 1 Mbps and is pin-compatible with the industry-standard MAX232, enabling easy upgrades in existing 5V designs to 3V operation.","working_principle":"The MAX3232ESE+ uses an internal charge pump (voltage inverter and doubler) to generate the positive and negative supply rails required for RS-232 output levels from a single low-voltage supply. The charge pump operates at a fixed frequency and uses four external 0.1 \u00b5F capacitors for charge storage and transfer. Each driver converts TTL\/CMOS logic levels (0 to VCC) to RS-232 levels (typically \u00b15.5V) using the generated dual supplies. Each receiver converts RS-232 input levels (\u00b13V to \u00b115V) to TTL\/CMOS logic levels using a threshold comparator with hysteresis for noise immunity. The ESD protection structures on the RS-232 pins clamp voltage transients to safe levels, protecting the internal circuitry from damage during handling and system-level ESD events.","pin_description":"<table><tr><th>Pin<\/th><th>Name<\/th><th>Function<\/th><\/tr><tr><td>1<\/td><td>C1+<\/td><td>Charge pump capacitor C1 positive<\/td><\/tr><tr><td>2<\/td><td>V+<\/td><td>Charge pump output (+5.5V generated)<\/td><\/tr><tr><td>3<\/td><td>C1-<\/td><td>Charge pump capacitor C1 negative<\/td><\/tr><tr><td>4<\/td><td>C2+<\/td><td>Charge pump capacitor C2 positive<\/td><\/tr><tr><td>5<\/td><td>C2-<\/td><td>Charge pump capacitor C2 negative<\/td><\/tr><tr><td>6<\/td><td>V-<\/td><td>Charge pump output (-5.5V generated)<\/td><\/tr><tr><td>7<\/td><td>DOUT2<\/td><td>Driver 2 RS-232 output<\/td><\/tr><tr><td>8<\/td><td>RIN2<\/td><td>Receiver 2 RS-232 input<\/td><\/tr><tr><td>9<\/td><td>ROUT2<\/td><td>Receiver 2 TTL\/CMOS output<\/td><\/tr><tr><td>10<\/td><td>DIN2<\/td><td>Driver 2 TTL\/CMOS input<\/td><\/tr><tr><td>11<\/td><td>DIN1<\/td><td>Driver 1 TTL\/CMOS input<\/td><\/tr><tr><td>12<\/td><td>ROUT1<\/td><td>Receiver 1 TTL\/CMOS output<\/td><\/tr><tr><td>13<\/td><td>RIN1<\/td><td>Receiver 1 RS-232 input<\/td><\/tr><tr><td>14<\/td><td>DOUT1<\/td><td>Driver 1 RS-232 output<\/td><\/tr><tr><td>15<\/td><td>GND<\/td><td>Ground<\/td><\/tr><tr><td>16<\/td><td>VCC<\/td><td>Power supply (3.0V to 5.5V)<\/td><\/tr><\/table>","application_scenarios":"The MAX3232ESE+ is the go-to RS-232 transceiver for 3.3V microcontroller designs that need serial communication with legacy RS-232 equipment. In industrial instrumentation, it enables communication between modern low-voltage MCU boards and PLCs or HMI panels with RS-232 ports. For handheld devices, the low supply current and shutdown mode extend battery life. The \u00b115 kV ESD protection is critical in applications where cables are frequently connected and disconnected, such as point-of-sale terminals and diagnostic ports. The minimal external component count (4 capacitors) simplifies PCB layout and reduces BOM cost.","alternative_models":"<table><tr><th>Model<\/th><th>Manufacturer<\/th><th>Key Difference<\/th><\/tr><tr><td>MAX3232CSE+<\/td><td>Analog Devices<\/td><td>0-70\u00b0C commercial temp range<\/td><\/tr><tr><td>SP3232ECP-L<\/td><td>MaxLinear<\/td><td>Pin-compatible alternative<\/td><\/tr><tr><td>ST3232EBPR<\/td><td>STMicroelectronics<\/td><td>Similar spec, different vendor<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/6490","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=6490"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/6490\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=6490"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=6490"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=6490"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=6490"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}