{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74ALS38BD","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74ALS38BD","canonicalUrl":"https://icboms.com/texas-instruments/SN74ALS38BD","factsUrl":"https://icboms.com/api/mcp/products/SN74ALS38BD","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74ALS series, NAND Gate, 4-circuit, 2-input, open collector, 14-SOIC (0.154\", 3.90mm Width), surface mount, tube.","salesMarkdown":"## What the open-collector output means on the bench The SN74ALS38BD is a quad 2-input NAND gate from the 74ALS family, packed in a 14-SOIC. The headline feature is the open-collector output — the high-side transistor is missing, so the output can only sink current (24 mA per the spec) and cannot source it. That means you pull the output up with an external resistor to whatever voltage the downstream logic needs, up to the breakdown of the output transistor. It is a common trick for driving a higher-voltage bus or a relay coil directly from a 5 V logic rail. Fine for a lab bench or an office-environment control board, but not for an engine bay or a cold warehouse floor. The 14-SOIC footprint is common and the body width is 3.90 mm — standard SOIC-14 land pattern.","metaTitle":"TI SN74ALS38BD 74ALS NAND Gate, Open Collector, 14-SOIC","metaDescription":"Texas Instruments SN74ALS38BD quad 2-input NAND gate with open-collector outputs. Active production, ROHS3 compliant. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":"74ALS","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Series":"74ALS","Package":"Tube","Features":"Open Collector","Logic Type":"NAND Gate","Mounting Type":"Surface Mount","Package / Case":"14-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Number of Inputs":"2","Voltage - Supply":"4.5V ~ 5.5V","Number of Circuits":"4","Operating Temperature":"0°C ~ 70°C","Input Logic Level - Low":"0.8V","Supplier Device Package":"14-SOIC","Input Logic Level - High":"2V","Current - Output High, Low":"-, 24mA","Max Propagation Delay @ V, Max CL":"33ns @ 5V, 50pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.04","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.04000","currency":"USD"},{"qty":10,"price":"$0.93200","currency":"USD"},{"qty":25,"price":"$0.88440","currency":"USD"},{"qty":100,"price":"$0.72650","currency":"USD"},{"qty":250,"price":"$0.67916","currency":"USD"},{"qty":500,"price":"$0.60018","currency":"USD"},{"qty":1000,"price":"$0.47382","currency":"USD"},{"qty":2500,"price":"$0.44700","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/8570cd65637aa57c126fa613def1283d.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74ALS38BD","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74ALS38BD 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}}