{"id":5690,"date":"2026-06-11T04:12:33","date_gmt":"2026-06-11T04:12:33","guid":{"rendered":"https:\/\/materialparts.com\/cat823rtdi-gt3\/"},"modified":"2026-06-12T03:06:41","modified_gmt":"2026-06-12T03:06:41","slug":"cat823rtdi-gt3","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/cat823rtdi-gt3\/","title":{"rendered":"CAT823RTDI-GT3"},"content":{"rendered":"

Productos<\/h2>\n

The CAT823RTDI-GT3 from onsemi is a microprocessor supervisory reset IC with 3.08V threshold, 200ms reset timeout, push-pull active-high reset output in SOT-23-5 for MCU brownout detection.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n
Threshold<\/td>\n3.08V<\/td>\n<\/tr>\n
Reset Output<\/td>\nPush-pull active-high<\/td>\n<\/tr>\n
Timeout<\/td>\n200ms min<\/td>\n<\/tr>\n
Supply<\/td>\n1.0-5.5V<\/td>\n<\/tr>\n
Iq<\/td>\n5uA typ<\/td>\n<\/tr>\n
Temp<\/td>\n-40~85C<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • Precision 3.08V threshold<\/li>\n
  • 200ms reset timeout<\/li>\n
  • Push-pull active-high output<\/li>\n
  • 5uA low supply current<\/li>\n
  • Manual reset input<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • MCU supervisory circuits<\/li>\n
    • Brownout detection<\/li>\n
    • Power-on reset<\/li>\n
    • Embedded systems<\/li>\n
    • FPGA\/CPU monitoring<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The CAT823RTDI-GT3 from onsemi is a microprocessor supervisory reset IC with 3.08V threshold, 200ms reset timeout, push-pull active-high reset output in SOT-23-5 for MCU brownout detection. Key Specifications Threshold 3.08V Reset Output Push-pull active-high Timeout 200ms min Supply 1.0-5.5V Iq 5uA typ Temp -40~85C Features Precision 3.08V threshold 200ms reset timeout Push-pull active-high […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13],"tags":[],"chip_brand":[144],"class_list":["post-5690","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","chip_brand-on"],"acf":{"brief_explanation":"Microprocessor reset IC, 3.08V threshold, push-pull, SOT-23-5","date_code":"","package_case":"SOT-23-5 (2.9x1.6mm)","in_stock":12427,"datasheet":"https:\/\/www.onsemi.com\/pub\/Collateral\/CAT823-D.PDF","price":"$0.25 @ 1ku","product_introduction":"The CAT823RTDI-GT3 from onsemi is a microprocessor supervisory reset IC with 3.08V threshold, 200ms reset timeout, push-pull active-high reset output in SOT-23-5 for MCU brownout detection.","working_principle":"The CAT823RTDI-GT3 is a microprocessor reset IC from onsemi in SOT-23-5 with a 3.08V reset threshold and push-pull active-LOW output. It monitors the VCC supply voltage: when VCC drops below 3.08V (the reset threshold for the R suffix), the RESET output immediately goes LOW, holding the MCU in reset. When VCC rises above the threshold, the internal timer starts a 140ms (typical) reset timeout before releasing RESET HIGH, ensuring the supply and oscillator are stable before the MCU starts executing code. The MR (Manual Reset) pin allows an external push-button or logic signal to trigger a reset: pulling MR below 0.4V activates RESET LOW for as long as MR is held LOW plus the 140ms timeout after MR is released. The internal pull-up resistor (approximately 30k-ohm) on MR means it can be left floating if manual reset is not needed. The push-pull output (TDI suffix) actively drives both HIGH and LOW, unlike open-drain versions that require an external pull-up resistor. The T suffix in RTDI specifies the 3.08V threshold. Operating current is only 5uA at 3.3V, making it suitable for battery-powered applications. The device operates from 1.0V to 5.5V, with valid RESET output guaranteed down to VCC=1.0V. The -GT3 suffix denotes tape-and-reel, automotive grade.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>MR<\/td>Input<\/td>Manual reset input (active low, internal pull-up)<\/td><\/tr>
      2<\/td>VSS<\/td>Power<\/td>Ground<\/td><\/tr>
      3<\/td>RESET<\/td>Output<\/td>Active-low reset output (push-pull)<\/td><\/tr>
      4<\/td>NC<\/td>-<\/td>No connect<\/td><\/tr>
      5<\/td>VCC<\/td>Power<\/td>Supply (1.0-5.5V)<\/td><\/tr><\/table>","application_scenarios":"
    • MCU supervisory circuits<\/li>
    • Brownout detection<\/li>
    • Power-on reset<\/li>
    • Embedded systems<\/li>
    • FPGA\/CPU monitoring<\/li>","alternative_models":"
      Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
      onsemi<\/td>CAT823ZTDI-GT3<\/td>SOT-23-5<\/td>Same device, open-drain reset output<\/td><\/tr>
      Texas Instruments<\/td>TPS3839K33DBVR<\/td>SOT-23-5<\/td>3.3V reset IC, 150nA Iq, push-pull<\/td><\/tr>
      Maxim<\/td>MAX809STRG+T<\/td>SOT-23-5<\/td>3.08V reset IC, push-pull, 240ms timeout<\/td><\/tr>
      Analog Devices<\/td>ADM803RARTZ-REEL7<\/td>SOT-23-5<\/td>2.93V reset IC, push-pull<\/td><\/tr>
      STMicroelectronics<\/td>STM809SWX6F<\/td>SC-70-3<\/td>2.93V reset IC, minimal footprint<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/5690","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=5690"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/5690\/revisions"}],"predecessor-version":[{"id":6042,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/5690\/revisions\/6042"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=5690"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=5690"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=5690"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=5690"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}