{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74HC138QPWRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74HC138QPWRQ1","canonicalUrl":"https://icboms.com/texas-instruments/SN74HC138QPWRQ1","factsUrl":"https://icboms.com/api/mcp/products/SN74HC138QPWRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments SN74HC138QPWRQ1, Automotive AEC-Q100 74HC series, 1 x 3:8 Decoder/Demultiplexer, 2V-6V supply, 5.2mA output, -40°C to 125°C, 16-TSSOP package.","salesMarkdown":"## 3:8 decoder/demultiplexer for address decoding and signal routing The SN74HC138QPWRQ1: It accepts three binary address inputs and activates one of eight active-low outputs, making it the standard building block for memory-mapped I/O decoding, chip-select generation, and data routing in digital systems. Operating from a 2V to 6V supply, the device spans the full 74HC voltage range and delivers 5.2 mA source and sink current per output. ## Automotive-grade address decoding with wide supply tolerance AEC-Q100 qualification means the SN74HC138QPWRQ1 has passed the full suite of automotive stress tests: high-temperature operating life (HTOL), temperature cycling, ESD robustness, and latch-up immunity. This is the grade required for ECU, BMS, and ADAS sensor interface boards that must survive 15-year vehicle lifetimes. At 3.3V the propagation delay is typically 20 ns; at 5V it drops to about 15 ns, fast enough for SPI chip-select strobes and memory address decoding at clock rates up to 25 MHz. Three enable inputs (two active-low, one active-high) allow cascading multiple decoders without external gates. A single SN74HC138QPWRQ1 decodes a 3-bit address space; stacking two devices with the enable chain yields a 4-to-16 decoder covering 16 select lines. Sourced through authorized distribution channels. Pricing and lead time are confirmed at quote against your BOM quantity. The 16-TSSOP package is a standard TI footprint with broad second-source availability across the 74HC family.","metaTitle":"SN74HC138QPWRQ1 3:8 Decoder/Demux, AEC-Q100, 16-TSSOP","metaDescription":"Texas Instruments SN74HC138QPWRQ1 1x3:8 decoder/demultiplexer, 2V-6V supply, -40°C to 125°C, AEC-Q100 automotive grade. Active production, ROHS3. Request quote.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100, 74HC","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Interface & Transceivers"],"specifications":{"Type":"Decoder/Demultiplexer","Series":"Automotive, AEC-Q100, 74HC","Circuit":"1 x 3:8","Package":"Tape & Reel (TR); Cut Tape (CT)","Mounting Type":"Surface Mount","Package / Case":"16-TSSOP (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"2V ~ 6V","Independent Circuits":"1","Operating Temperature":"-40°C ~ 125°C","Voltage Supply Source":"Single Supply","Supplier Device Package":"16-TSSOP","Current - Output High, Low":"5.2mA, 5.2mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.62","priceTiers":[{"qty":1,"price":"$0.62000","currency":"USD"},{"qty":10,"price":"$0.54200","currency":"USD"},{"qty":25,"price":"$0.50920","currency":"USD"},{"qty":100,"price":"$0.41570","currency":"USD"},{"qty":250,"price":"$0.38612","currency":"USD"},{"qty":500,"price":"$0.32860","currency":"USD"},{"qty":1000,"price":"$0.26288","currency":"USD"},{"qty":2000,"price":"$0.23824","currency":"USD"},{"qty":6000,"price":"$0.23250","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/c8ccceaac30d58c47784bbc4864cc2bc.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN74HC138QPWRQ1/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for SN74HC138QPWRQ1?","answer":"Submit an RFQ with your target quantity. We source through authorized TI distribution and confirm current pricing, lead time, and lot traceability at quote time. Availability is verified per your BOM line."},{"question":"What is the closest pin-compatible alternative to SN74HC138QPWRQ1?","answer":"The standard 74HC138 in the same 16-TSSOP package is pin-compatible but lacks AEC-Q100 automotive qualification. For non-automotive designs, any 74HC138 from TI, Nexperia, or ON Semiconductor in TSSOP-16 is a drop-in replacement. No official TI cross-reference is published for the Q1 suffix."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74HC138QPWRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74HC138QPWRQ1 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}}