{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TLC556MDR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TLC556MDR","canonicalUrl":"https://icboms.com/texas-instruments/TLC556MDR","factsUrl":"https://icboms.com/api/mcp/products/TLC556MDR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LinCMOS™ TLC556MDR 555 Type, Timer/Oscillator (Dual), 2.1 MHz, 720 µA, 5V ~ 18V, -55°C ~ 125°C, 14-SOIC.","salesMarkdown":"## Dual 555 timer in 14-SOIC — 2.1 MHz, 720 µA supply The Texas Instruments TLC556MDR is a dual 555-type timer/oscillator in the LinCMOS™ series, combining two independent timing circuits in a single 14-SOIC package. It delivers a maximum oscillation frequency of 2.1 MHz while drawing only 720 µA typical supply current — roughly one-tenth the quiescent draw of a bipolar 555, which matters for battery-powered or thermally constrained boards. The TLC556MDR operates from 5 V to 18 V, covering 5 V logic rails, 12 V industrial supplies, and 15 V analog bias lines without an external regulator. ## Surface-mount assembly and compliance Housed in a 14-SOIC (0.154\" width, 3.90 mm body) with supplier device package 14-SOIC, the TLC556MDR mounts directly to standard SOIC-14 land patterns.","metaTitle":"TLC556MDR Texas Instruments Dual 555 Timer, 2.1 MHz, 14-SOIC","metaDescription":"Texas Instruments TLC556MDR dual 555-type timer/oscillator in 14-SOIC. 2.1 MHz max frequency, 720 µA supply, 5-18 V range, -55 to 125 °C. Active, RoHS3.","metaKeywords":null},"attributes":{"series":"LinCMOS™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Clock & Timing ICs"],"specifications":{"Type":"555 Type, Timer/Oscillator (Dual)","Series":"LinCMOS™","Package":"Tape & Reel (TR); Cut Tape (CT)","Frequency":"2.1MHz","Mounting Type":"Surface Mount","Package / Case":"14-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Current - Supply":"720 µA","Voltage - Supply":"5V ~ 18V","Operating Temperature":"-55°C ~ 125°C","Supplier Device Package":"14-SOIC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.22","priceTiers":[{"qty":1,"price":"$2.22000","currency":"USD"},{"qty":10,"price":"$1.99400","currency":"USD"},{"qty":25,"price":"$1.88160","currency":"USD"},{"qty":100,"price":"$1.60300","currency":"USD"},{"qty":250,"price":"$1.50520","currency":"USD"},{"qty":500,"price":"$1.31704","currency":"USD"},{"qty":1000,"price":"$1.09127","currency":"USD"},{"qty":2500,"price":"$1.06500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/724549d94f5da215e46eeb81515b0556.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TLC556MDR/alternatives.json"},"ai":{"faq":[{"question":"What is the TLC556MDR's supply current compared to a standard bipolar 555 timer?","answer":"The TLC556MDR draws 720 µA typical supply current, which is roughly an order of magnitude lower than the 10–15 mA quiescent current of a standard bipolar 555. This makes it suitable for low-power and portable designs where every milliamp counts."},{"question":"Is TLC556MDR RoHS compliant and lead-free?","answer":"Yes, the TLC556MDR is ROHS3 Compliant, meaning it meets the EU RoHS directive without exemptions for lead, mercury, cadmium, or other restricted substances. It is suitable for lead-free reflow soldering processes."},{"question":"What is the maximum operating frequency of the TLC556MDR?","answer":"The TLC556MDR has a maximum oscillation frequency of 2.1 MHz. This sets the upper bound for astable multivibrator or pulse-width modulation applications; the actual achievable frequency depends on the external RC timing components and their tolerances."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TLC556MDR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TLC556MDR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}