{"id":7577,"date":"2026-06-26T04:46:29","date_gmt":"2026-06-26T04:46:29","guid":{"rendered":"https:\/\/materialparts.com\/sn74lvc1g123dbvr\/"},"modified":"2026-06-26T04:46:29","modified_gmt":"2026-06-26T04:46:29","slug":"sn74lvc1g123dbvr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/sn74lvc1g123dbvr\/","title":{"rendered":"SN74LVC1G123DBVR"},"content":{"rendered":"

Productos<\/h2>\n

The SN74LVC1G123DBVR from Texas Instruments is a single retriggerable monostable multivibrator with Schmitt-trigger inputs, 1.65V-5.5V operation, and programmable pulse width in SOT-23-8 package.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Canales<\/td>\n1<\/td>\n<\/tr>\n
Tensi\u00f3n de alimentaci\u00f3n<\/td>\n1.65 V to 5.5 V<\/td>\n<\/tr>\n
Propagation Delay (tpd)<\/td>\n8 ns max @ 3.3V<\/td>\n<\/tr>\n
Output Drive Current<\/td>\n32 mA (sink\/source)<\/td>\n<\/tr>\n
Input Type<\/td>\nSchmitt-Trigger on A-bar and B<\/td>\n<\/tr>\n
Output Type<\/td>\nPush-Pull (Q and Q-bar)<\/td>\n<\/tr>\n
Supply Current (ICC)<\/td>\n20 uA max<\/td>\n<\/tr>\n
Trigger Modes<\/td>\nRising edge on B, falling edge on A-bar, or CLR high<\/td>\n<\/tr>\n
Retriggerable<\/td>\nYes (up to 100% duty cycle)<\/td>\n<\/tr>\n
Overriding Clear<\/td>\nYes (active low CLR terminates pulse)<\/td>\n<\/tr>\n
IOff Support<\/td>\nYes (partial power-down, live insertion)<\/td>\n<\/tr>\n
Paquete<\/td>\nSOT-23-8 (DBV suffix)<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40 to +125 C<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • Schmitt-trigger inputs for slow edge tolerance<\/li>\n
  • Three trigger methods: A-bar low + B rising, B high + A-bar falling, CLR high<\/li>\n
  • Retriggerable for long pulses up to 100% duty cycle<\/li>\n
  • Overriding clear terminates output pulse immediately<\/li>\n
  • Glitch-free power-up reset on outputs<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Pulse generation and timing delay circuits<\/li>\n
    • Debounce and one-shot pulse conditioning<\/li>\n
    • Frequency divider and missing pulse detector<\/li>\n
    • AV receivers and Blu-ray player timing<\/li>\n
    • Industrial control sequential timing<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The SN74LVC1G123DBVR from Texas Instruments is a single retriggerable monostable multivibrator with Schmitt-trigger inputs, 1.65V-5.5V operation, and programmable pulse width in SOT-23-8 package. Key Specifications Channels 1 Supply Voltage 1.65 V to 5.5 V Propagation Delay (tpd) 8 ns max @ 3.3V Output Drive Current 32 mA (sink\/source) Input Type Schmitt-Trigger on A-bar […]<\/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":[13,22],"tags":[],"chip_brand":[138],"class_list":["post-7577","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-video-ics","chip_brand-ti"],"acf":{"brief_explanation":"Single retriggerable monostable multivibrator, Schmitt-trigger, SOT-23-8","date_code":"","package_case":"SOT-23-8 (2.9 x 1.6 x 1.45 mm)","in_stock":15000,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/sn74lvc1g123.pdf","price":"$0.530 @ 1ku","product_introduction":"The SN74LVC1G123DBVR from Texas Instruments is a single retriggerable monostable multivibrator with Schmitt-trigger inputs in SOT-23-8 package. The device operates from 1.65V to 5.5V supply and provides programmable output pulse duration via external resistor (REXT) and capacitor (CEXT). Three trigger methods are supported: A-bar low with B rising edge, B high with A-bar falling edge, or CLR going high. The Schmitt-trigger inputs handle slow input transition rates without jitter. The retriggerable feature allows extending the output pulse up to 100% duty cycle. The overriding clear (CLR) input can terminate the output pulse at any time. The DBVR suffix denotes SOT-23-8 package with tape and reel packaging.","working_principle":"The SN74LVC1G123DBVR operates as a retriggerable monostable (one-shot) multivibrator. (1) In the quiescent state, the Q output is low and Q-bar is high. When a valid trigger event occurs (rising edge on B with A-bar low, or falling edge on A-bar with B high), the output Q goes high for a duration determined by the external timing components. The pulse width is approximately tw = REXT x CEXT x 0.33 (typical). The external capacitor connects between Cext and Rext\/Cext pins, and the external resistor connects between Rext\/Cext and VCC. (2) The retriggerable feature means that if a new trigger event occurs while the output pulse is still active, the pulse duration is extended from the new trigger point. This allows achieving very long output pulses or even 100% duty cycle by continuously retriggering before the pulse expires. Conversely, taking CLR low immediately terminates the output pulse regardless of the timing, providing an overriding reset function. (3) The Schmitt-trigger inputs on A-bar and B provide hysteresis that eliminates output jitter caused by slow or noisy input edges. This is critical in applications where the trigger signal comes from a mechanical switch (with contact bounce) or a slowly rising signal from an RC network. The IOff circuitry ensures the outputs are high-impedance when VCC is 0V, preventing back-drive damage in hot-swap or partial-power-down applications.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>A-bar<\/td>Active-low trigger input (Schmitt)<\/td><\/tr>
      2<\/td>B<\/td>Active-high trigger input (Schmitt)<\/td><\/tr>
      3<\/td>CLR-bar<\/td>Active-low clear (overrides pulse)<\/td><\/tr>
      4<\/td>GND<\/td>Ground<\/td><\/tr>
      5<\/td>Q-bar<\/td>Complementary output<\/td><\/tr>
      6<\/td>Q<\/td>Normal output (pulse high)<\/td><\/tr>
      7<\/td>Cext<\/td>External capacitor (positive terminal)<\/td><\/tr>
      8<\/td>Rext\/Cext<\/td>External resistor\/capacitor junction<\/td><\/tr><\/table>","application_scenarios":"
      • Pulse generation and timing delay circuits with programmable width via REXT\/CEXT<\/li>
      • Switch debounce and one-shot pulse conditioning with Schmitt-trigger inputs<\/li>
      • Frequency divider and missing pulse detector using retriggerable feature<\/li>
      • AV receivers and Blu-ray player timing control<\/li>
      • Industrial control sequential timing and watchdog pulse generation<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        74LVC1G123DC-Q100<\/td>Nexperia<\/td>AEC-Q100, VSSOP-8<\/td><\/tr>
        SN74LVC1G123DCTR<\/td>TI<\/td>Same, SSOP-8 package<\/td><\/tr>
        74LVC1G123GW<\/td>Nexperia<\/td>SOT-353-5, smaller package<\/td><\/tr>
        CD74HC4538EE4<\/td>TI<\/td>Dual monostable, DIP-16<\/td><\/tr>
        74HC123D<\/td>Nexperia<\/td>Dual monostable, SO-16<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/7577","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=7577"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/7577\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=7577"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=7577"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=7577"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=7577"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}