{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74F157AD","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74F157AD","canonicalUrl":"https://icboms.com/texas-instruments/SN74F157AD","factsUrl":"https://icboms.com/api/mcp/products/SN74F157AD","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74F series SN74F157AD, Type Multiplexer, Circuit 4 x 2:1, Single Supply 4.5 V ~ 5.5 V, Surface Mount 16-SOIC, 0°C ~ 70°C.","salesMarkdown":"## What this 4 x 2:1 multiplexer brings to the bus The Texas Instruments SN74F157AD is a single-supply 5 V multiplexer that routes one of two 4-bit data sources to a common output, configured as four independent 2:1 selector channels. It belongs to the 74F family, which means it runs at the faster propagation delays typical of the F series — useful for gluing together address or data buses in 5 V logic systems where speed matters but a full bus switch is overkill. The rated output current is 1 mA sourcing (high) and 20 mA sinking (low). That 20 mA sink capability is typical for 74F parts and lets the outputs drive a reasonable fan-out of standard TTL loads — roughly 10 LSTTL inputs per channel — without external buffers. Just don't expect to drive LEDs or relay coils directly off the output pins without a transistor. ## Package and footprint — 16-SOIC surface mount No thermal pad or exposed paddle — just the standard SOIC land pattern. ROHS3 compliance is confirmed, so it passes EU RoHS and similar global substance restrictions without a waiver.","metaTitle":"SN74F157AD Multiplexer, 4 x 2:1, 16-SOIC, 5 V","metaDescription":"Texas Instruments SN74F157AD is a 4 x 2:1 multiplexer in a 16-SOIC package, 4.5 V to 5.5 V supply, 0°C to 70°C. ROHS3 compliant, active lifecycle.","metaKeywords":null},"attributes":{"series":"74F","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Type":"Multiplexer","Series":"74F","Circuit":"4 x 2:1","Package":"Tube","Mounting Type":"Surface Mount","Package / Case":"16-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5V ~ 5.5V","Independent Circuits":"1","Operating Temperature":"0°C ~ 70°C","Voltage Supply Source":"Single Supply","Supplier Device Package":"16-SOIC","Current - Output High, Low":"1mA, 20mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.15","priceTiers":[{"qty":1,"price":"$1.15000","currency":"USD"},{"qty":10,"price":"$1.03200","currency":"USD"},{"qty":25,"price":"$0.97960","currency":"USD"},{"qty":100,"price":"$0.80450","currency":"USD"},{"qty":250,"price":"$0.75208","currency":"USD"},{"qty":500,"price":"$0.66462","currency":"USD"},{"qty":1000,"price":"$0.52470","currency":"USD"},{"qty":2500,"price":"$0.49500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/22792ad2a1303f369ccd42b860a61ebf.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN74F157AD/alternatives.json"},"ai":{"faq":[{"question":"Can I replace SN74F157AD with SN74F157AN?","answer":"The SN74F157AN is the through-hole (DIP) version of the same multiplexer — same logic function and electrical specs, but in a 16-DIP package. If your board is laid out for surface-mount 16-SOIC, the AN variant won't fit without an adapter. For a drop-in SMD replacement, stick with the AD suffix."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74F157AD","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74F157AD 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}}