{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74HCT32D","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74HCT32D","canonicalUrl":"https://icboms.com/texas-instruments/SN74HCT32D","factsUrl":"https://icboms.com/api/mcp/products/SN74HCT32D","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74HCT series OR Gate, SN74HCT32D, 4-ch 2-input, surface-mount 14-SOIC, 4.5 V to 5.5 V supply, 22 ns max propagation delay at 5.5 V 50 pF, -40°C to 85°C, active, ROHS3.","salesMarkdown":"## Quad 2-input OR gate in 14-SOIC – 74HCT with TTL-compatible thresholds This makes it a direct replacement for 74LS-series OR gates in existing 5 V designs without needing to re-terminate or adjust pull-up networks. The four independent OR gates each can source or sink 4 mA, and quiescent current is a maximum of 2 µA. ## 22 ns propagation delay – timing margin for 5 V buses The maximum propagation delay is 22 ns at 5.5 V with a 50 pF load. In a 5 V logic chain, this sets the worst-case settling time for the OR gate's output. If the next stage has a setup-time requirement, the 22 ns figure must be included in the total path delay calculation. The 74HCT family's TTL-compatible inputs mean the SN74HCT32D can be driven directly by older 5 V TTL outputs without level translation. This means it is still in regular production, with no announced end-of-life or last-time-buy window.","metaTitle":"SN74HCT32D OR Gate, 4-ch 2-input, 14-SOIC, 22ns @ 5.5V","metaDescription":"Texas Instruments SN74HCT32D quad 2-input OR gate in 14-SOIC. TTL-compatible inputs at 5 V supply, 22 ns max delay, -40°C to 85°C. Active, ROHS3.","metaKeywords":null},"attributes":{"series":"74HCT","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Series":"74HCT","Package":"Tube","Logic Type":"OR 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":"-40°C ~ 85°C","Input Logic Level - Low":"0.8V","Supplier Device Package":"14-SOIC","Input Logic Level - High":"2V","Current - Quiescent (Max)":"2 µA","Current - Output High, Low":"4mA, 4mA","Max Propagation Delay @ V, Max CL":"22ns @ 5.5V, 50pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.16","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.16000","currency":"USD"},{"qty":10,"price":"$1.03500","currency":"USD"},{"qty":25,"price":"$0.98240","currency":"USD"},{"qty":100,"price":"$0.80700","currency":"USD"},{"qty":250,"price":"$0.75436","currency":"USD"},{"qty":500,"price":"$0.66664","currency":"USD"},{"qty":1000,"price":"$0.52629","currency":"USD"},{"qty":2500,"price":"$0.49650","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/baabb69c0e71349599c0f11e47384b25.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between SN74HCT32D and SN74LS32?","answer":"Both are quad 2-input OR gates, but the SN74HCT32D uses HCT (High-speed CMOS with TTL-compatible inputs) technology, while the SN74LS32 uses LS (Low-power Schottky TTL). The LS32 has a slightly faster propagation delay (typically 15 ns) but consumes far more power. The HCT32D is the drop-in replacement for most 5 V TTL systems where power matters."},{"question":"Is the SN74HCT32D compatible with 5 V logic?","answer":"Yes. It can be driven directly by 5 V TTL outputs and its outputs swing rail-to-rail, making it fully compatible with 5 V CMOS and TTL logic families."},{"question":"What is an equivalent or substitute for the SN74HCT32D?","answer":"A functional equivalent is the SN74AC32DR, which is also a quad 2-input OR gate in a 14-SOIC package. If your design uses TTL drive levels, the HCT32D is the correct choice; if you can tolerate CMOS thresholds, the AC32 is a faster alternative."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74HCT32D","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74HCT32D 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}}