{"id":9795,"date":"2026-07-06T10:50:59","date_gmt":"2026-07-06T10:50:59","guid":{"rendered":"https:\/\/materialparts.com\/sp3232eea-l-tr\/"},"modified":"2026-07-06T10:50:59","modified_gmt":"2026-07-06T10:50:59","slug":"sp3232eea-l-tr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/sp3232eea-l-tr\/","title":{"rendered":"SP3232EEA-L\/TR"},"content":{"rendered":"<h2>\u4ea7\u54c1\u6982\u89c8<\/h2>\n<p>The SP3232EEA-L\/TR from Sipex\/MaxLinear (formerly Exar) is a 3.3V RS-232 transceiver with Auto On-Line feature, meeting EIA\/TIA-232-E and V.28 specifications. It contains two drivers and two receivers, operates from a single 3.0V to 5.5V supply, and uses charge pump to generate +\/-5.5V RS-232 voltage levels.<\/p>\n<h2>\u4e3b\u8981\u89c4\u683c<\/h2>\n<ul>\n<li>Type: RS-232 Transceiver (2 Driver \/ 2 Receiver)<\/li>\n<li>Manufacturer: MaxLinear (formerly Sipex\/Exar)<\/li>\n<li>Supply Voltage: 3.0V to 5.5V<\/li>\n<li>Data Rate: 120kbps minimum<\/li>\n<li>ESD Protection: +\/-15kV HBM, +\/-15kV IEC 61000-4-2<\/li>\n<li>Driver Output Swing: +\/-5.5V min<\/li>\n<li>Receiver Input Threshold: +\/-0.3V<\/li>\n<li>Auto On-Line: Automatic power down\/up<\/li>\n<li>Supply Current: 1mA (Auto Power-Down)<\/li>\n<li>Package: SSOP-16<\/li>\n<li>Operating Temp: -40C to +85C<\/li>\n<li>RoHS: Compliant<\/li>\n<\/ul>\n<h2>\u7279\u70b9<\/h2>\n<ul>\n<li>Auto On-Line feature automatically powers down when no RS-232 cable connected<\/li>\n<li>Single 3.0-5.5V supply with integrated charge pump<\/li>\n<li>+\/-15kV ESD protection on RS-232 pins<\/li>\n<li>1mA supply current in auto power-down mode<\/li>\n<li>Pin compatible with MAX3232 and ICL3232<\/li>\n<\/ul>\n<h2>\u5e94\u7528<\/h2>\n<ul>\n<li>Battery-powered RS-232 communication<\/li>\n<li>Portable instrument interfaces<\/li>\n<li>Industrial control serial ports<\/li>\n<li>Point-of-sale terminals<\/li>\n<li>Embedded system RS-232 ports<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Product Overview The SP3232EEA-L\/TR from Sipex\/MaxLinear (formerly Exar) is a 3.3V RS-232 transceiver with Auto On-Line feature, meeting EIA\/TIA-232-E and V.28 specifications. It contains two drivers and two receivers, operates from a single 3.0V to 5.5V supply, and uses charge pump to generate +\/-5.5V RS-232 voltage levels. Key Specifications Type: RS-232 Transceiver (2 Driver \/ [&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":[1070],"chip_brand":[171],"class_list":["post-9795","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","tag-sp3232eea-l-tr","chip_brand-maxlinear"],"acf":{"brief_explanation":"3.3V RS-232 transceiver, 2TX\/2RX, Auto On-Line, +\/-15kV ESD, SSOP-16, MaxLinear","date_code":"","package_case":"SSOP-16 (5.3 x 6.2 x 1.75mm)","in_stock":3608,"datasheet":"https:\/\/www.maxlinear.com\/product\/interface\/rs-232\/sp3232","price":"$0.85 @ 1ku","product_introduction":"The SP3232EEA-L\/TR from MaxLinear is a 3.3V RS-232 transceiver with 2 drivers\/2 receivers, Auto On-Line power management, +\/-15kV ESD protection, and 120kbps data rate in an SSOP-16 package.","working_principle":"The SP3232 uses an internal charge pump with four external 0.1uF capacitors to generate +\/-5.5V voltage levels from a single 3.0-5.5V supply, meeting RS-232 voltage swing requirements. The Auto On-Line feature monitors the RS-232 receiver inputs; when all receivers detect no valid signal (cable disconnected), the device automatically enters a low-power 1uA shutdown mode. When a valid RS-232 signal is detected, the device automatically powers back up.","pin_description":"<table><tr><th>Pin<\/th><th>Name<\/th><th>Function<\/th><\/tr><tr><td>1-2<\/td><td>C1+\/C1-<\/td><td>Charge pump capacitor 1<\/td><\/tr><tr><td>3-4<\/td><td>C2+\/C2-<\/td><td>Charge pump capacitor 2<\/td><\/tr><tr><td>5-6<\/td><td>V+\/V-<\/td><td>Charge pump output +\/-5.5V<\/td><\/tr><tr><td>7<\/td><td>DIN1\/DIN2<\/td><td>TTL driver inputs<\/td><\/tr><tr><td>8-9<\/td><td>DOUT1\/DOUT2<\/td><td>RS-232 driver outputs<\/td><\/tr><tr><td>10-11<\/td><td>RIN1\/RIN2<\/td><td>RS-232 receiver inputs<\/td><\/tr><tr><td>12-13<\/td><td>ROUT1\/ROUT2<\/td><td>TTL receiver outputs<\/td><\/tr><tr><td>14<\/td><td>GND<\/td><td>Ground<\/td><\/tr><tr><td>15<\/td><td>VCC<\/td><td>Power supply (3.0-5.5V)<\/td><\/tr><tr><td>16<\/td><td>EN\/SHDN<\/td><td>Enable\/Shutdown control<\/td><\/tr><\/table>","application_scenarios":"<ul><li>Battery-powered RS-232 communication<\/li><li>Portable instrument interfaces<\/li><li>Industrial control serial ports<\/li><li>Point-of-sale terminals<\/li><\/ul>","alternative_models":"<table><tr><th>Model<\/th><th>Manufacturer<\/th><th>Key Spec<\/th><th>Package<\/th><\/tr><tr><td>MAX3232CDR<\/td><td>TI<\/td><td>3.3V RS-232 2T\/2R<\/td><td>SOIC-16<\/td><\/tr><tr><td>ICL3232CPZ<\/td><td>Renesas<\/td><td>3.3V RS-232 2T\/2R<\/td><td>DIP-16<\/td><\/tr><tr><td>ST3232CDR<\/td><td>STMicro<\/td><td>3.3V RS-232 2T\/2R<\/td><td>SOIC-16<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9795","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=9795"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9795\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=9795"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=9795"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=9795"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=9795"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}