{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TLC556CDR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TLC556CDR","canonicalUrl":"https://icboms.com/texas-instruments/TLC556CDR","factsUrl":"https://icboms.com/api/mcp/products/TLC556CDR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LinCMOS™ TLC556CDR, dual 555-type timer/oscillator, 2.1 MHz maximum frequency, 720 µA supply current, 2V–15V supply range, 14-SOIC package, commercial temperature grade 0°C–70°C.","salesMarkdown":"## Dual 555 timer in a 14-SOIC — what the 2.1 MHz ceiling means The TLC556CDR packs two independent 555-type timer/oscillator stages into a single 14-SOIC (0.154″ wide, 3.90 mm body). The 2.1 MHz maximum frequency sets the upper bound for astable oscillation or monostable pulse generation. Supply current is 720 µA typical — roughly one-tenth of a bipolar 556 — which makes this part a natural fit for battery-operated or power-budgeted boards where the timer runs continuously. The 2V to 15V supply range covers 3.3V, 5V, and 12V rails without an extra regulator; just watch the output voltage swing at 2V — it tracks VCC minus about 0.1V at light load. The commercial temperature grade (0°C to 70°C) restricts this part to controlled indoor environments — office equipment, bench-top instruments, consumer appliances. Do not use it in an automotive cabin or an outdoor telecom cabinet without a temperature qualification review; the timing drift below 0°C is unspecified. The 14-SOIC package is a standard footprint shared by many logic and interface ICs. The 0.154″ body width fits a narrow SOIC land pattern. Sourced to order against your BOM quantity.","metaTitle":"TLC556CDR Dual 555 Timer IC – 2.1 MHz, 14-SOIC, Active","metaDescription":"Texas Instruments TLC556CDR dual 555-type timer/oscillator in 14-SOIC. 2.1 MHz max frequency, 720 µA supply, 2V–15V range. Active production, 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 (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":"2V ~ 15V","Operating Temperature":"0°C ~ 70°C","Supplier Device Package":"14-SOIC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.33","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.33000","currency":"USD"},{"qty":10,"price":"$1.19200","currency":"USD"},{"qty":25,"price":"$1.13120","currency":"USD"},{"qty":100,"price":"$0.92920","currency":"USD"},{"qty":250,"price":"$0.86860","currency":"USD"},{"qty":500,"price":"$0.76760","currency":"USD"},{"qty":1000,"price":"$0.60600","currency":"USD"},{"qty":2500,"price":"$0.56560","currency":"USD"},{"qty":5000,"price":"$0.53732","currency":"USD"},{"qty":12500,"price":"$0.51712","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/724549d94f5da215e46eeb81515b0556.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to TLC556CDR?","answer":"The NE556 is a bipolar dual 555 in the same 14-SOIC footprint, but it draws roughly 10 mA supply current versus 720 µA for the TLC556CDR, and its minimum supply is 4.5V versus 2V. If your board already runs on 5V and power is not tight, the NE556 is a drop-in swap. For low-voltage or low-power designs, the TLC556CDR is the better fit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TLC556CDR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TLC556CDR 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}}