{"id":7059,"date":"2026-06-23T03:14:38","date_gmt":"2026-06-23T03:14:38","guid":{"rendered":"https:\/\/materialparts.com\/tlc555idr\/"},"modified":"2026-06-23T03:14:38","modified_gmt":"2026-06-23T03:14:38","slug":"tlc555idr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/tlc555idr\/","title":{"rendered":"TLC555IDR"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The TLC555IDR from Texas Instruments is a CMOS version of the industry-standard 555 timer, offering significantly lower power consumption than the bipolar NE555 while maintaining pin compatibility. Operating from 2 V to 15 V with a typical supply current of 250 uA at 5 V, it supports astable and monostable timing up to 2.1 MHz in an SOIC-8 package, making it ideal for battery-powered timing and oscillator applications.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n
Supply Voltage Range<\/td>\n2 V to 15 V<\/td>\n<\/tr>\n
Max Frequency (Astable)<\/td>\n2.1 MHz<\/td>\n<\/tr>\n
Supply Current (5V, typ)<\/td>\n250 uA<\/td>\n<\/tr>\n
Output Sink Current<\/td>\n100 mA (typ)<\/td>\n<\/tr>\n
Timing Accuracy<\/td>\n1% (typical)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40C to +85C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • CMOS implementation with 250 uA typical supply current at 5 V<\/li>\n
  • Pin-compatible with NE555 for easy upgrade<\/li>\n
  • High-frequency operation up to 2.1 MHz in astable mode<\/li>\n
  • Wide supply voltage range from 2 V to 15 V<\/li>\n
  • Rail-to-rail output swing with CMOS output stage<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Precision timing and pulse generation in battery-powered devices<\/li>\n
    • Monostable and astable multivibrator circuits<\/li>\n
    • PWM modulation circuits<\/li>\n
    • Clock and oscillator generation for digital systems<\/li>\n
    • Time delay and sequential timing applications<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TLC555IDR from Texas Instruments is a CMOS version of the industry-standard 555 timer, offering significantly lower power consumption than the bipolar NE555 while maintaining pin compatibility. Operating from 2 V to 15 V with a typical supply current of 250 uA at 5 V, it supports astable and monostable timing up to […]<\/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":[19,13],"tags":[],"chip_brand":[138],"class_list":["post-7059","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"CMOS 555 timer, 2.1MHz, 250uA at 5V, 2-15V supply, pin-compatible with NE555, SOIC-8","date_code":"","package_case":"SOIC-8 (3.91 x 4.9 x 1.58 mm)","in_stock":14500,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tlc555.pdf","price":"$0.36 @ 1ku","product_introduction":"The TLC555IDR is a CMOS precision timer from Texas Instruments that provides a direct pin-compatible replacement for the bipolar NE555 while consuming only a fraction of the supply current. At 5 V, the typical supply current is 250 uA compared to 3 mA for the NE555, making it ideal for battery-powered and low-power applications. The CMOS output stage provides rail-to-rail output swing and the device operates over a supply range of 2 V to 15 V. In astable mode, the TLC555 can operate at frequencies up to 2.1 MHz, significantly higher than the 100 kHz typical of bipolar 555 timers.","working_principle":"The TLC555IDR uses CMOS technology to implement the classic 555 timer architecture with three main functional blocks. (1) Voltage Divider: Three internal 100 kOhm resistors create two reference voltages at 1\/3 VCC and 2\/3 VCC for the internal comparators. (2) Comparator and Latch: The upper comparator (threshold pin) resets the internal flip-flop when voltage exceeds 2\/3 VCC. The lower comparator (trigger pin) sets the flip-flop when voltage falls below 1\/3 VCC. (3) Output Stage: A CMOS push-pull output provides rail-to-rail output swing with typical sink capability of 100 mA at 5 V.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>GND<\/td>Ground<\/td>Ground reference<\/td><\/tr>
      2<\/td>TRIGGER<\/td>Input<\/td>Starts timing when voltage falls below 1\/3 VCC<\/td><\/tr>
      3<\/td>OUTPUT<\/td>Output<\/td>Timer output (rail-to-rail CMOS)<\/td><\/tr>
      4<\/td>RESET<\/td>Input<\/td>Active low reset<\/td><\/tr>
      5<\/td>CONTROL VOLTAGE<\/td>Input<\/td>Access to 2\/3 VCC reference (bypass with 0.01uF)<\/td><\/tr>
      6<\/td>THRESHOLD<\/td>Input<\/td>Ends timing when voltage exceeds 2\/3 VCC<\/td><\/tr>
      7<\/td>DISCHARGE<\/td>Output<\/td>Open-drain discharge for timing capacitor<\/td><\/tr>
      8<\/td>VCC<\/td>Power<\/td>Positive supply voltage (2-15V)<\/td><\/tr><\/table>","application_scenarios":"
      • Battery-powered timing circuits with ultra-low quiescent current<\/li>
      • Monostable time-delay circuits for power sequencing<\/li>
      • Astable oscillator circuits up to 2.1 MHz for clock generation<\/li>
      • PWM motor speed control and LED dimming<\/li>
      • Capacitive sensor and touch interface timing circuits<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Texas Instruments<\/td>NE555DR<\/td>SOIC-8<\/td>Bipolar 555, higher current<\/td><\/tr>
        onsemi<\/td>MC1455BDR2G<\/td>SOIC-8<\/td>Bipolar 555 equivalent<\/td><\/tr>
        STMicroelectronics<\/td>TS555IDT<\/td>SOIC-8<\/td>CMOS 555, 2.7-16V<\/td><\/tr>
        Diodes Inc<\/td>SA555DT<\/td>SOIC-8<\/td>Bipolar, -40 to +85C<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7059","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=7059"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7059\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=7059"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=7059"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=7059"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=7059"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}