{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CD74AC257M","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"CD74AC257M","canonicalUrl":"https://icboms.com/texas-instruments/CD74AC257M","factsUrl":"https://icboms.com/api/mcp/products/CD74AC257M","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74AC series multiplexer, 4 x 2:1 circuit, 16-SOIC (0.154\", 3.90mm Width), single supply 1.5V to 5.5V, -55°C to 125°C, 24mA output drive, ROHS3 compliant, active.","salesMarkdown":"## 4 x 2:1 multiplexer in the 74AC family — what the ratings mean for the board The CD74AC257M is a 4-bit, 2-input multiplexer from TI's 74AC series, routing one of two 4-bit data sources to a single 4-bit output based on a common select line. The 24mA source and sink capability at both high and low output states is the figure that decides whether this mux can drive a downstream bus without a buffer. For a 50pF load at 5V, the output transitions in the low-nanosecond range; if the downstream input has a 10pF gate capacitance, the 24mA drive handles several loads in parallel before the edge rate degrades. ## Package and temperature — board-fit and deployment envelope The 16-SOIC package is widely second-sourced; if the BOM calls for a 74AC257 in this footprint, the CD74AC257M is the TI order code, but the same die in an SOIC-16 from other logic vendors (e.g., Nexperia, ON Semiconductor) is a pin-compatible drop-in. No board spin needed.","metaTitle":"CD74AC257M TI 74AC 4x2:1 Multiplexer, 16-SOIC, 1.5-5.5V","metaDescription":"Texas Instruments CD74AC257M 4 x 2:1 multiplexer, 16-SOIC, 1.5V-5.5V supply, -55°C to 125°C, 24mA output drive. Active, ROHS3. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":"74AC","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Type":"Multiplexer","Series":"74AC","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":"1.5V ~ 5.5V","Independent Circuits":"1","Operating Temperature":"-55°C ~ 125°C","Voltage Supply Source":"Single Supply","Supplier Device Package":"16-SOIC","Current - Output High, Low":"24mA, 24mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.45","stockQuantity":31,"priceTiers":[{"qty":1,"price":"$1.45000","currency":"USD"},{"qty":10,"price":"$1.29500","currency":"USD"},{"qty":25,"price":"$1.22880","currency":"USD"},{"qty":100,"price":"$1.00930","currency":"USD"},{"qty":250,"price":"$0.94352","currency":"USD"},{"qty":500,"price":"$0.83380","currency":"USD"},{"qty":1000,"price":"$0.65826","currency":"USD"},{"qty":2500,"price":"$0.62100","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/794b534806e2437593f07555aac62bb8.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to CD74AC257M?","answer":"Any 74AC257 in a 16-SOIC package from a major logic vendor (e.g., Nexperia 74AC257D, ON Semiconductor MC74AC257D) is a direct pin-compatible replacement. The 74AC family logic levels and output drive are standardized across manufacturers, so the swap is a BOM-line change, not a board spin."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/CD74AC257M","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/CD74AC257M when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}