{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MM74HCT32MTC","brand":"onsemi","brandSlug":"onsemi","productSlug":"MM74HCT32MTC","canonicalUrl":"https://icboms.com/onsemi/MM74HCT32MTC","factsUrl":"https://icboms.com/api/mcp/products/MM74HCT32MTC","rawCanonicalId":null},"summary":{"shortDescription":"onsemi 74HCT series quad 2-input OR gate, MM74HCT32MTC, 14-TSSOP surface-mount package, 2V-6V supply, 2 µA quiescent, 5.2mA output drive, -55°C to 125°C.","salesMarkdown":"## Quad OR gate in 14-TSSOP — timing and temperature grade The MM74HCT32MTC is a quad 2-input OR gate from onsemi's 74HCT series, packaged in a 14-TSSOP (0.173\", 4.40mm width) for surface-mount assembly. It operates across a 2V to 6V supply range, making it a direct drop-in for TTL-compatible 5V logic systems and 3.3V mixed-voltage buses. Maximum propagation delay is 20ns at 6V with a 50pF load — this sets the timing budget for the critical path. The -55°C to 125°C operating range covers industrial and military-grade environments — the same die can sit in an engine-bay ECU or a cold-chain data logger without a temperature-grade change. ## Output drive and static power — what the numbers mean for the bus Each output sinks or sources 5.2mA — enough to drive one or two standard TTL loads or a CMOS input with 10-15pF gate capacitance. For heavier fan-out (more than 4 loads), buffer the output with a line driver or use the 74HCT series' higher-drive siblings. Quiescent current is 2 µA max — the gate draws essentially nothing when idle. In battery-powered designs that cycle the supply rail, this keeps the sleep-mode drain below the leakage floor of most regulators. Input logic thresholds are TTL-compatible: 0.8V low, 2.0V high. This means the gate interprets a 0.8V signal as logic low and a 2.0V signal as logic high — it will correctly decode 3.3V CMOS outputs that swing 0-3.3V, but a 2.5V CMOS output with a 1.2V low may not meet the 0.8V low threshold if the driver's VOL is above 0.8V. ## Active lifecycle — no obsolescence risk for this BOM line onsemi lists the MM74HCT32MTC as Active — no NRND, EOL, or last-time-buy flags. The 74HCT series is a mature logic family with broad second-source availability (TI, Nexperia, Diodes Inc all produce pin-compatible parts), so single-source risk is low.","metaTitle":"onsemi MM74HCT32MTC 74HCT Quad OR Gate, 14-TSSOP, Active","metaDescription":"onsemi MM74HCT32MTC quad 2-input OR gate, 74HCT series, 14-TSSOP package. 2V-6V supply, 20ns prop delay at 6V, -55 to 125°C.","metaKeywords":null},"attributes":{"series":"74HCT","packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Signal Isolation"],"specifications":{"Series":"74HCT","Package":"Bulk","Logic Type":"OR Gate","Mounting Type":"Surface Mount","Package / Case":"14-TSSOP (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Number of Inputs":"2","Voltage - Supply":"2V ~ 6V","Number of Circuits":"4","Operating Temperature":"-55°C ~ 125°C","Input Logic Level - Low":"0.8V","Supplier Device Package":"14-TSSOP","Input Logic Level - High":"2V","Current - Quiescent (Max)":"2 µA","Current - Output High, Low":"5.2mA, 5.2mA","Max Propagation Delay @ V, Max CL":"20ns @ 6V, 50pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.17","priceTiers":[{"qty":1729,"price":"$0.17000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/9cfdb2992abea33a964d7a1b84973d7f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MM74HCT32MTC/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/MM74HCT32MTC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/MM74HCT32MTC 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}}