{"id":6505,"date":"2026-06-17T03:29:34","date_gmt":"2026-06-17T03:29:34","guid":{"rendered":"https:\/\/materialparts.com\/stm6519apaaub6f\/"},"modified":"2026-06-17T03:29:34","modified_gmt":"2026-06-17T03:29:34","slug":"stm6519apaaub6f","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/stm6519apaaub6f\/","title":{"rendered":"STM6519APAAUB6F"},"content":{"rendered":"<h2>Productos<\/h2>\n<p>The STM6519APAAUB6F from STMicroelectronics is a single-pin Smart Reset IC that provides push-button reset with an extended setup delay of 7.5 seconds, preventing accidental resets from brief button presses. Operating from 2V to 5.5V with 1 \u00b5A supply current, it features an active-low open-drain reset output with 210 ms recovery timeout in a tiny UDFN-6 (1.0 x 1.45 mm) package.<\/p>\n<h2>Especificaciones<\/h2>\n<ul>\n<li>Function: Single-pin Smart Reset (push-button supervisor)<\/li>\n<li>Smart Reset Delay (tSRC): 7.5 seconds typical (factory-programmed)<\/li>\n<li>Recovery Timeout (tREC): 210 ms typical (factory-programmed)<\/li>\n<li>SR Input: Active-low, no internal pull-up<\/li>\n<li>Reset Output: Active-low, open-drain<\/li>\n<li>Supply Voltage: 2.0V ~ 5.5V<\/li>\n<li>Supply Current: 1 \u00b5A max<\/li>\n<li>Operating Temperature: -40\u00b0C ~ 85\u00b0C<\/li>\n<li>Package: UDFN-6 (1.0 x 1.45 x 0.55 mm)<\/li>\n<li>RoHS: ECOPACK2 compliant<\/li>\n<\/ul>\n<h2>Caracter\u00edsticas<\/h2>\n<ul>\n<li>Extended Smart Reset setup delay prevents accidental resets<\/li>\n<li>Single push-button serves dual purpose: interrupt (short press) and hard reset (long press)<\/li>\n<li>Factory-programmable tSRC from 0.5s to 10s in 0.5s steps<\/li>\n<li>Factory-programmable tREC timeout options<\/li>\n<li>Ultra-low 1 \u00b5A supply current<\/li>\n<li>Open-drain reset output for wired-OR configuration<\/li>\n<li>Compact UDFN-6 package for space-constrained designs<\/li>\n<\/ul>\n<h2>Aplicaciones<\/h2>\n<ul>\n<li>Consumer electronics reset protection<\/li>\n<li>Handheld device power-cycle control<\/li>\n<li>Embedded system hang recovery<\/li>\n<li>Smartphone and tablet reset management<\/li>\n<li>Industrial controller reset with debounce<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Product Overview The STM6519APAAUB6F from STMicroelectronics is a single-pin Smart Reset IC that provides push-button reset with an extended setup delay of 7.5 seconds, preventing accidental resets from brief button presses. Operating from 2V to 5.5V with 1 \u00b5A supply current, it features an active-low open-drain reset output with 210 ms recovery timeout in a [&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":[13,29],"tags":[],"chip_brand":[142],"class_list":["post-6505","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-power-management-ics-pmic","chip_brand-st"],"acf":{"brief_explanation":"Smart Reset IC, 7.5s delay, active-low OD output, 210ms tREC, 2-5.5V, 1\u00b5A, UDFN-6 1x1.45mm","date_code":"","package_case":"UDFN-6 (1.0 x 1.45 x 0.55 mm)","in_stock":3500,"datasheet":"https:\/\/www.st.com\/resource\/en\/datasheet\/stm6519.pdf","price":"$0.73","product_introduction":"The STM6519APAAUB6F from STMicroelectronics is a Smart Reset supervisor IC that solves the common problem of accidental system resets caused by brief push-button closures. The device requires the reset button to be held for a factory-programmed 7.5 seconds before asserting the reset output, effectively distinguishing between a software interrupt (short press) and a hardware reset (long press). The APAA variant features an active-low open-drain reset output with a 210 ms recovery timeout, ensuring a clean reset pulse duration. Operating from 2V to 5.5V with just 1 \u00b5A supply current, the device is ideal for battery-powered consumer electronics. The tiny UDFN-6 package (1.0 x 1.45 mm) enables placement in space-constrained designs.","working_principle":"The STM6519APAAUB6F monitors the Smart Reset (SR) input pin for an active-low condition. When the push-button is pressed, the device starts an internal timer. If the SR input returns high before the 7.5-second setup delay (tSRC) expires, no reset is generated \u2014 the MCU can handle the button press as a normal interrupt. If the SR input remains low for the full 7.5 seconds (indicating a deliberate long press or a hung system), the RST output asserts low. The reset output remains low for the factory-programmed recovery timeout (tREC = 210 ms) after the SR input goes high, ensuring the MCU receives a clean reset pulse regardless of the button release timing. The open-drain output allows wired-OR connection with other reset sources such as voltage supervisors.","pin_description":"<table><tr><th>Pin<\/th><th>Name<\/th><th>Function<\/th><\/tr><tr><td>1<\/td><td>NC<\/td><td>No Connect<\/td><\/tr><tr><td>2<\/td><td>GND<\/td><td>Ground<\/td><\/tr><tr><td>3<\/td><td>RST<\/td><td>Reset output (active-low, open-drain)<\/td><\/tr><tr><td>4<\/td><td>VCC<\/td><td>Power supply (2-5.5V)<\/td><\/tr><tr><td>5<\/td><td>SR<\/td><td>Smart Reset input (active-low, connect to push-button)<\/td><\/tr><tr><td>6<\/td><td>NC<\/td><td>No Connect<\/td><\/tr><\/table>","application_scenarios":"The STM6519APAAUB6F is used in consumer electronics where a single push-button serves dual purpose: a short press triggers a software interrupt (e.g., menu select), while a 7.5-second hold generates a hardware reset for system recovery. In handheld devices, the long delay prevents accidental resets during normal handling. For embedded controllers that may hang, the Smart Reset provides a reliable recovery mechanism without requiring a dedicated reset button. The 210 ms tREC ensures the MCU has sufficient time to complete its reset sequence. The ultra-low 1 \u00b5A supply current makes it transparent to the battery budget in always-on applications.","alternative_models":"<table><tr><th>Model<\/th><th>Manufacturer<\/th><th>Key Difference<\/th><\/tr><tr><td>STM6519AHARUB6F<\/td><td>STMicroelectronics<\/td><td>4.0s tSRC, no tREC (push-button controlled)<\/td><\/tr><tr><td>STM6519ALARUB6F<\/td><td>STMicroelectronics<\/td><td>6.0s tSRC, no tREC<\/td><\/tr><tr><td>MAX811MEUS-T<\/td><td>Analog Devices<\/td><td>Simple reset, no Smart Reset delay<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/6505","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=6505"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/6505\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=6505"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=6505"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=6505"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=6505"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}