{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TLC555QDR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TLC555QDR","canonicalUrl":"https://icboms.com/texas-instruments/TLC555QDR","factsUrl":"https://icboms.com/api/mcp/products/TLC555QDR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TLC555QDR, LinCMOS series, Type 555 Timer/Oscillator (Single), 2.1 MHz, 5V ~ 15V supply, 360 µA supply current, -40°C ~ 125°C, 8-SOIC surface mount package.","salesMarkdown":"## LinCMOS 555 timer for low-power industrial timing The Texas Instruments TLC555QDR is a LinCMOS 555-type timer/oscillator that runs up to 2.1 MHz while drawing 360 µA supply current. ## Temperature grade and deployment context Rated for -40°C to 125°C, the TLC555QDR is specified for under-hood automotive and outdoor industrial enclosures where a commercial-grade 555 would drift or fail. The 8-SOIC package keeps the footprint small enough for a multi-layer PCB in a motor drive or a remote sensor head. ## Active lifecycle — no LTB clock ticking TI lists the TLC555QDR as Active with ROHS3 compliance. For a BOM line that needs a known-good timer through a multi-year product run, that removes the sourcing risk of a discontinued bipolar 555.","metaTitle":"TLC555QDR LinCMOS Timer, 2.1 MHz, 8-SOIC, -40 to 125°C","metaDescription":"TI TLC555QDR 555-type LinCMOS timer oscillator. 2.1 MHz max frequency, 360 µA supply, 5-15V range. -40 to 125°C. 8-SOIC. Active, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"LinCMOS™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Clock & Timing ICs"],"specifications":{"Type":"555 Type, Timer/Oscillator (Single)","Series":"LinCMOS™","Package":"Tape & Reel (TR); Cut Tape (CT)","Frequency":"2.1MHz","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Current - Supply":"360 µA","Voltage - Supply":"5V ~ 15V","Operating Temperature":"-40°C ~ 125°C","Supplier Device Package":"8-SOIC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.93","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.93000","currency":"USD"},{"qty":10,"price":"$0.81700","currency":"USD"},{"qty":25,"price":"$0.76720","currency":"USD"},{"qty":100,"price":"$0.62600","currency":"USD"},{"qty":250,"price":"$0.58152","currency":"USD"},{"qty":500,"price":"$0.49490","currency":"USD"},{"qty":1000,"price":"$0.39592","currency":"USD"},{"qty":2500,"price":"$0.35880","currency":"USD"},{"qty":5000,"price":"$0.33406","currency":"USD"},{"qty":12500,"price":"$0.32168","currency":"USD"},{"qty":25000,"price":"$0.30931","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/90cb13a325de25acf0de0e24fc895da5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is TLC555QDR a direct replacement for NE555?","answer":"Pin-compatible in the same 8-pin DIP or SOIC footprint, yes — the TLC555QDR drops straight onto a board designed for the NE555. The key difference is the CMOS output stage: the TLC555QDR swings rail-to-rail and draws 360 µA supply current, versus the NE555's roughly 10 mA. At 2.1 MHz it also runs faster than the standard bipolar 555's typical 500 kHz limit. If your circuit relies on the bipolar 555's higher output drive current (200 mA sink/source), check the TLC555QDR's 100 mA output rating — it's lower, but sufficient for most logic-level and MOSFET-gate loads."},{"question":"How does TLC555QDR differ from standard 555 timers?","answer":"The LinCMOS construction cuts supply current from ~10 mA to 360 µA typical, extends the maximum frequency to 2.1 MHz, and allows rail-to-rail output swing. The trade-off is lower output drive: 100 mA versus 200 mA for a bipolar 555. Operating temperature range also widens to -40°C to 125°C, covering automotive and industrial ambient conditions the commercial 555 (0°C to 70°C) cannot."},{"question":"Is TLC555QDR available in tape and reel packaging?","answer":"Yes, the TLC555QDR suffix indicates it ships in Tape & Reel (TR) or Cut Tape (CT) form, which is the standard 8-SOIC carrier for pick-and-place assembly. The package / case is an 8-SOIC with 0.154\" body width (3.90 mm)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TLC555QDR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TLC555QDR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}