{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74F251BN","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74F251BN","canonicalUrl":"https://icboms.com/texas-instruments/SN74F251BN","factsUrl":"https://icboms.com/api/mcp/products/SN74F251BN","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74F series multiplexer, SN74F251BN, 1 x 8:1 circuit, single 4.5V-5.5V supply, 3mA/24mA output drive, 0°C to 70°C, 16-DIP through-hole package.","salesMarkdown":"## Output drive and fan-out The output is rated for 3mA high-level and 24mA low-level drive. That 24mA sink is typical for 74F — enough to drive a few standard TTL loads or a single LED indicator directly. If you are feeding a long backplane trace or a high-capacitance bus, you will want to buffer the output; the 3mA source side is the weaker link. The 24mA sink figure also tells you the output stage can absorb current from a pulled-up bus without exceeding the absolute maximum, which is the usual case when multiplexing onto a shared data line with passive pull-ups. ## Lifecycle and sourcing No last-time-buy notice, no obsolescence pressure on this line item. It is a current, standard-product multiplexer from TI that remains in the catalog for new designs and production replenishment alike.","metaTitle":"SN74F251BN Texas Instruments 74F Multiplexer, 1 x 8:1","metaDescription":"SN74F251BN 74F series multiplexer, 1 x 8:1 circuit, 4.5V-5.5V single supply, 3mA/24mA output drive, 0°C to 70°C, 16-DIP through-hole. Active, ROHS3.","metaKeywords":null},"attributes":{"series":"74F","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"Multiplexer","Series":"74F","Circuit":"1 x 8:1","Package":"Tube","Mounting Type":"Through Hole","Package / Case":"16-DIP (0.300\\\", 7.62mm)","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-PDIP","Current - Output High, Low":"3mA, 24mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.84","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.84000","currency":"USD"},{"qty":10,"price":"$0.74200","currency":"USD"},{"qty":25,"price":"$0.69680","currency":"USD"},{"qty":100,"price":"$0.56850","currency":"USD"},{"qty":250,"price":"$0.52808","currency":"USD"},{"qty":500,"price":"$0.44944","currency":"USD"},{"qty":1000,"price":"$0.35955","currency":"USD"},{"qty":2500,"price":"$0.32584","currency":"USD"},{"qty":5000,"price":"$0.31800","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/74da42907687b7fea3aef2e58c33bab6.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is SN74F251BN a direct replacement for 74F251B?","answer":"Yes, the SN74F251BN is the standard through-hole DIP version of the 74F251B function. The 'SN' prefix is TI's standard prefix, and the 'N' suffix indicates the plastic DIP package. It is a direct functional and pin-compatible replacement for any 74F251B in a 16-pin DIP."},{"question":"Where can I find the SN74F251BN datasheet?","answer":"The datasheet is available from Texas Instruments under the SN74F251BN product page. It covers the full 74F251 family, including switching characteristics, input thresholds, and output drive curves across the 0°C to 70°C range."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74F251BN","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74F251BN 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}}