{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74LS257BN","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74LS257BN","canonicalUrl":"https://icboms.com/texas-instruments/SN74LS257BN","factsUrl":"https://icboms.com/api/mcp/products/SN74LS257BN","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74LS series multiplexer, SN74LS257BN, 4 x 2:1 circuit, single 4.75-5.25V supply, 0°C to 70°C, 16-DIP (0.300\", 7.62mm) through-hole package, tube.","salesMarkdown":"## Active 74LS multiplexer for 5V bus selection The SN74LS257BN is an active-production 74LS-series multiplexer from Texas Instruments, configured as four independent 2:1 selector circuits in a single 16-pin DIP package. ## Output drive and temperature envelope Each output can source 2.6 mA and sink 24 mA — the asymmetric drive is typical of 74LS outputs, designed to drive one standard TTL load in the high state and up to ten loads in the low state. Housed in a 16-DIP (0.300\", 7.62mm) through-hole package, the SN74LS257BN is suited for prototyping, rework, and boards where surface-mount is not an option. The 16-PDIP footprint matches standard 0.100-inch pitch DIP sockets.","metaTitle":"SN74LS257BN Texas Instruments 74LS 4x2:1 Multiplexer, 16-DIP","metaDescription":"SN74LS257BN TI 74LS multiplexer, 4 x 2:1 circuit, 4.75-5.25V supply, 0-70°C, 16-DIP. Active production, ROHS3. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":"74LS","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Interface & Transceivers"],"specifications":{"Type":"Multiplexer","Series":"74LS","Circuit":"4 x 2:1","Package":"Tube","Mounting Type":"Through Hole","Package / Case":"16-DIP (0.300\\\", 7.62mm)","lifecycle_stage":"eol_hot","Voltage - Supply":"4.75V ~ 5.25V","Independent Circuits":"1","Operating Temperature":"0°C ~ 70°C","Voltage Supply Source":"Single Supply","Supplier Device Package":"16-PDIP","Current - Output High, Low":"2.6mA, 24mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.05","priceTiers":[{"qty":1,"price":"$1.05000","currency":"USD"},{"qty":10,"price":"$0.93500","currency":"USD"},{"qty":25,"price":"$0.88760","currency":"USD"},{"qty":100,"price":"$0.72900","currency":"USD"},{"qty":250,"price":"$0.68148","currency":"USD"},{"qty":500,"price":"$0.60222","currency":"USD"},{"qty":1000,"price":"$0.47544","currency":"USD"},{"qty":2500,"price":"$0.44853","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/41d37069ca21774cf1cb16912ebe3c85.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN74LS257BN/alternatives.json"},"ai":{"faq":[{"question":"What is the SN74LS257BN used for?","answer":"It is a 4 x 2:1 multiplexer from the 74LS low-power Schottky family. It selects one of two 4-bit data sources onto a common output bus, controlled by a single select line — used in data routing, register selection, and address muxing in 5V logic systems."},{"question":"What compliance documentation does Texas Instruments provide for SN74LS257BN?","answer":"The part is ROHS3 compliant. Standard TI documentation includes the datasheet, RoHS certificate, and REACH declaration — all available via the manufacturer's product page."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74LS257BN","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74LS257BN 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}}