{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74HC151D","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74HC151D","canonicalUrl":"https://icboms.com/texas-instruments/SN74HC151D","factsUrl":"https://icboms.com/api/mcp/products/SN74HC151D","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74HC series SN74HC151D, 1 x 8:1 multiplexer, single supply 2V to 6V, 7.8mA output high/low, -40°C to 85°C, 16-SOIC package.","salesMarkdown":"It selects one of eight data sources based on a three-bit address, making it the standard building block for data routing, input expansion, and signal gating in digital systems. The 2V to 6V supply window means this part works on a 3.3V microcontroller rail or a 5V legacy bus without a level translator. At 3.3V the 7.8mA output high and low current is enough to drive one or two standard CMOS loads or a low-power LED indicator, but it will not fan out to a heavy bus — plan a buffer if the trace runs more than a few centimetres or feeds multiple inputs.","metaTitle":"SN74HC151D Multiplexer 1x8:1, 2V-6V, 16-SOIC, Active","metaDescription":"Texas Instruments SN74HC151D 74HC 1 x 8:1 multiplexer in 16-SOIC. Supply 2V to 6V, industrial temp -40°C to 85°C, 7.8mA output. Active lifecycle.","metaKeywords":null},"attributes":{"series":"74HC","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Type":"Multiplexer","Series":"74HC","Circuit":"1 x 8:1","Package":"Tube","Mounting Type":"Surface Mount","Package / Case":"16-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"2V ~ 6V","Independent Circuits":"1","Operating Temperature":"-40°C ~ 85°C","Voltage Supply Source":"Single Supply","Supplier Device Package":"16-SOIC","Current - Output High, Low":"7.8mA, 7.8mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.16","priceTiers":[{"qty":1,"price":"$1.16000","currency":"USD"},{"qty":10,"price":"$1.03500","currency":"USD"},{"qty":25,"price":"$0.98240","currency":"USD"},{"qty":100,"price":"$0.80700","currency":"USD"},{"qty":250,"price":"$0.75436","currency":"USD"},{"qty":500,"price":"$0.66664","currency":"USD"},{"qty":1000,"price":"$0.52629","currency":"USD"},{"qty":2500,"price":"$0.49650","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/8b486a162a1a56de194dfd1adbc37f0c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN74HC151D/alternatives.json"},"ai":{"faq":[{"question":"Can the SN74HC151D be used with a 3.3V supply?","answer":"Yes. The supply range is 2V to 6V, so 3.3V is well within the operating window. At 3.3V the output high and low current is 7.8mA, which is adequate for driving CMOS logic inputs or a single low-current load."},{"question":"What is the difference between SN74HC151D and SN74HCT151D?","answer":"The SN74HCT151D is the TTL-compatible variant of the same 1 x 8:1 multiplexer. The HC version (this part) operates from 2V to 6V and has CMOS-level input thresholds (0.3 x VCC low, 0.7 x VCC high). The HCT version uses TTL thresholds (0.8V low, 2.0V high) and is intended for mixed-voltage systems where the driving logic is 5V TTL. If your upstream logic is pure 3.3V CMOS, the HC variant is the correct choice."},{"question":"Is the SN74HC151D compatible with TTL logic levels?","answer":"No, not directly. The HC family uses CMOS input thresholds (0.3 x VCC low, 0.7 x VCC high). At 5V supply, the low threshold is 1.5V and the high threshold is 3.5V, which is compatible with 5V TTL outputs (0.8V low, 2.0V high). At 3.3V supply, the high threshold is 2.31V, which is above the 2.0V TTL minimum — so a 5V TTL output driving a 3.3V-powered HC input may not reliably reach the high threshold. For mixed-voltage TTL systems, use the SN74HCT151D instead."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74HC151D","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74HC151D 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}}