{"id":6458,"date":"2026-06-16T03:57:19","date_gmt":"2026-06-16T03:57:19","guid":{"rendered":"https:\/\/materialparts.com\/sn74lvc2g14dckr\/"},"modified":"2026-06-16T03:57:19","modified_gmt":"2026-06-16T03:57:19","slug":"sn74lvc2g14dckr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/sn74lvc2g14dckr\/","title":{"rendered":"SN74LVC2G14DCKR"},"content":{"rendered":"

\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n

The SN74LVC2G14DCKR is a dual Schmitt-trigger inverter from Texas Instruments for 1.65V to 5.5V operation. It contains two independent inverters with Schmitt-trigger inputs in a single SC70-6 package. The Schmitt-trigger hysteresis (\u0394VT) ensures clean switching with slow or noisy inputs. Features 5.4ns max tpd, \u00b124mA drive, 5.5V overvoltage-tolerant inputs, Ioff, and down-translation support.<\/p>\n

\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Logic Function<\/td>\nDual Schmitt-Trigger Inverter (Y = \u0100 \u00d7 2)<\/td>\n<\/tr>\n
\u0627\u0644\u0642\u0646\u0648\u0627\u062a<\/td>\n2 (independent)<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n1.65V to 5.5V<\/td>\n<\/tr>\n
Propagation Delay (tpd)<\/td>\n5.4ns max @ 3.3V<\/td>\n<\/tr>\n
Input Hysteresis (\u0394VT)<\/td>\n0.22V typ @ 3.3V<\/td>\n<\/tr>\n
Output Drive<\/td>\n\u00b124mA @ 3.3V; \u00b132mA @ 4.5V<\/td>\n<\/tr>\n
Quiescent Current (ICC)<\/td>\n10\u00b5A max<\/td>\n<\/tr>\n
Input Voltage Tolerance<\/td>\nUp to 5.5V<\/td>\n<\/tr>\n
Ground Bounce (VOLP)<\/td>\n<0.8V typ @ 3.3V<\/td>\n<\/tr>\n
VOH Undershoot (VOHV)<\/td>\n>2V typ @ 3.3V<\/td>\n<\/tr>\n
Down Translation<\/td>\nYes (5V\u21923.3V, 3.3V\u21921.8V)<\/td>\n<\/tr>\n
\u062f\u0639\u0645 Ioff<\/td>\nYes<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSC70-6 \/ SOT-363 (2.0 x 1.25mm)<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0625\u0644\u0649 +125 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Two independent Schmitt-trigger inverters in one package<\/li>\n
  • 1.65V to 5.5V VCC operation<\/li>\n
  • Input hysteresis for noise immunity<\/li>\n
  • 5.5V overvoltage-tolerant inputs<\/li>\n
  • 5.4ns max propagation delay at 3.3V<\/li>\n
  • Low ground bounce (<0.8V) and VOH undershoot (>2V)<\/li>\n
  • \u00b124mA output drive at 3.3V<\/li>\n
  • Down-translation support (5V\u21923.3V\u21921.8V)<\/li>\n
  • Ioff for partial-power-down \/ live insertion<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Differential signal squaring<\/li>\n
    • Dual switch debounce<\/li>\n
    • RC oscillator (two-gate feedback)<\/li>\n
    • Signal level translation with noise rejection<\/li>\n
    • Power-on reset generation<\/li>\n
    • Motor encoder signal conditioning<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The SN74LVC2G14DCKR is a dual Schmitt-trigger inverter from Texas Instruments for 1.65V to 5.5V operation. It contains two independent inverters with Schmitt-trigger inputs in a single SC70-6 package. The Schmitt-trigger hysteresis (\u0394VT) ensures clean switching with slow or noisy inputs. Features 5.4ns max tpd, \u00b124mA drive, 5.5V overvoltage-tolerant inputs, Ioff, and down-translation support. […]<\/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],"tags":[],"chip_brand":[138],"class_list":["post-6458","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"Dual Schmitt-trigger inverter, 1.65-5.5V, hysteresis, 5.4ns tpd, \u00b124mA, OVT inputs, SC70-6","date_code":"","package_case":"SC70-6 \/ SOT-363 (2.0 x 1.25 x 1.0mm)","in_stock":45000,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/sn74lvc2g14.pdf","price":"$0.047 @ 1ku","product_introduction":"The SN74LVC2G14DCKR is a dual Schmitt-trigger inverter from Texas Instruments containing two independent inverter channels with Schmitt-trigger inputs in a single SC70-6 package. The Schmitt-trigger hysteresis provides different thresholds for rising (VT+) and falling (VT\u2013) signals, ensuring clean output transitions even with slowly-slewing or noisy input waveforms. The two channels can be used independently for signal conditioning, or combined for an RC oscillator (with the second inverter providing feedback through a resistor). The device supports 5.5V overvoltage-tolerant inputs, down-translation between voltage domains, Ioff partial-power-down isolation, and \u00b124mA output drive at 3.3V. The low ground bounce (<0.8V) and high VOH undershoot (>2V) ensure signal integrity in high-speed designs.","working_principle":"Each of the two inverter channels operates independently with Schmitt-trigger input hysteresis. The input has two thresholds: VT+ (positive-going, typically 1.63V at 3.3V VCC) and VT\u2013 (negative-going, typically 1.41V). When input rises through VT+, the output switches low; when input falls through VT\u2013, the output switches high. The hysteresis \u0394VT = VT+ \u2013 VT\u2013 prevents output oscillation on slow or noisy inputs. Both channels share common VCC and GND pins. The Ioff circuit disconnects outputs when VCC = 0V, preventing backflow. The low ground bounce specification means the output GND bounce during simultaneous switching stays below 0.8V, and VOH undershoot stays above 2V \u2014 critical for maintaining noise margins in high-speed systems.","pin_description":"
      Pin<\/th>Name<\/th>Description<\/th><\/tr>
      1<\/td>1A<\/td>Channel 1 Schmitt-trigger input<\/td><\/tr>
      2<\/td>GND<\/td>Ground<\/td><\/tr>
      3<\/td>2A<\/td>Channel 2 Schmitt-trigger input<\/td><\/tr>
      4<\/td>2Y<\/td>Channel 2 inverted output<\/td><\/tr>
      5<\/td>VCC<\/td>Supply voltage (1.65V to 5.5V)<\/td><\/tr>
      6<\/td>1Y<\/td>Channel 1 inverted output<\/td><\/tr><\/table>","application_scenarios":"
      • RC Oscillator:<\/b> Connect the output of inverter 1 to its input through a resistor (R1), and connect a capacitor from the input to GND. Feed inverter 1's output to inverter 2's input. The hysteresis creates a relaxation oscillator with frequency f \u2248 1\/(R1\u00d7C\u00d7ln(VT+\/(VCC\u2013VT\u2013))). This provides a simple clock source without a crystal or ceramic resonator.<\/li>
      • Differential Encoder Squaring:<\/b> Connect a differential encoder's A and B channels to the two Schmitt inverters. The hysteresis squares the encoder's sine\/cosine outputs into clean digital signals for an MCU quadrature decoder. Each channel operates independently with its own threshold and hysteresis.<\/li>
      • Dual Switch Debounce:<\/b> Debounce two mechanical switches (e.g., UP\/DOWN buttons) using the two inverters. Each switch connects to an inverter input through an RC filter. The Schmitt hysteresis ensures single, clean output transitions regardless of contact bounce duration.<\/li><\/ul>","alternative_models":"
        Model<\/th>Channels<\/th>Package<\/th>Key Difference<\/th><\/tr>
        SN74LVC1G14DCKR<\/td>1<\/td>SC70-5<\/td>Single channel, same family<\/td><\/tr>
        SN74LVC2G14DBVR<\/td>2<\/td>SOT-23-6<\/td>Larger package, easier assembly<\/td><\/tr>
        74AUP2G14GF<\/td>2<\/td>X2SON-8<\/td>Nexperia, 0.8V min, ultra-low power<\/td><\/tr>
        NC7WZ14P6X<\/td>2<\/td>SC70-6<\/td>Renesas\/IDT, similar specs<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6458","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/comments?post=6458"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6458\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=6458"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=6458"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=6458"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=6458"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}