{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74HC138DBR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74HC138DBR","canonicalUrl":"https://icboms.com/texas-instruments/SN74HC138DBR","factsUrl":"https://icboms.com/api/mcp/products/SN74HC138DBR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74HC series Decoder/Demultiplexer, 1 x 3:8 circuit, 2V-6V supply, SSOP-16 package, surface mount, -40°C to 85°C, RoHS3 compliant.","salesMarkdown":"## What the 1-of-8 decoding means for your address bus The SN74HC138DBR is a single 3-to-8 line decoder/demultiplexer from TI's 74HC family — it takes a 3-bit binary address on its select inputs and asserts one of eight active-low outputs. The single independent circuit (1 x 3:8) means the part handles one address decode path per package, with the demultiplexer mode letting you route a data input to one of eight outputs by holding the address lines. ## Output drive and package — what the 5.2 mA rating tells you Each output sources or sinks 5.2 mA (both high and low), which is typical for HC logic — enough to drive a few CMOS gate inputs or a low-power LED indicator, but not a relay coil or a long backplane trace without a buffer. The 74HC series uses a standard CMOS process with high noise immunity and symmetrical drive — the 5.2 mA figure is the same for sourcing and sinking, so the output high and low voltage drops are balanced. That matters when the downstream logic has tight VIH/VIL thresholds.","metaTitle":"SN74HC138DBR 74HC Decoder/Demux, 1x3:8, SSOP-16","metaDescription":"Texas Instruments SN74HC138DBR 74HC decoder/demultiplexer, 1 x 3:8 circuit, 2V-6V supply, -40°C to 85°C, 16-SSOP. Active production, RoHS3. Request quote.","metaKeywords":null},"attributes":{"series":"74HC","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"Decoder/Demultiplexer","Series":"74HC","Circuit":"1 x 3:8","Package":"Tape & Reel (TR); Cut Tape (CT)","Mounting Type":"Surface Mount","Package / Case":"16-SSOP (0.209\\\", 5.30mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"2V ~ 6V","Independent Circuits":"1","Operating Temperature":"-40°C ~ 85°C","Voltage Supply Source":"Single Supply","Supplier Device Package":"16-SSOP","Current - Output High, Low":"5.2mA, 5.2mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.51","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.51000","currency":"USD"},{"qty":10,"price":"$0.43700","currency":"USD"},{"qty":25,"price":"$0.40800","currency":"USD"},{"qty":100,"price":"$0.32650","currency":"USD"},{"qty":250,"price":"$0.30316","currency":"USD"},{"qty":500,"price":"$0.25652","currency":"USD"},{"qty":1000,"price":"$0.19822","currency":"USD"},{"qty":2000,"price":"$0.18073","currency":"USD"},{"qty":6000,"price":"$0.16907","currency":"USD"},{"qty":10000,"price":"$0.16500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/9d9a465d5736e5bba69d52db28153a25.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74HC138DBR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74HC138DBR 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}}