{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74HC244N","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74HC244N","canonicalUrl":"https://icboms.com/texas-instruments/SN74HC244N","factsUrl":"https://icboms.com/api/mcp/products/SN74HC244N","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74HC series Buffer Non-Inverting, 3-State, Through Hole, 20-DIP (0.300\", 7.62mm), 2V ~ 6V supply, -40°C ~ 85°C, 7.8mA output drive, SN74HC244N.","salesMarkdown":"## What the 7.8 mA drive tells you about fit The SN74HC244N is a 74HC-series octal buffer with non-inverting logic and 3-state outputs, in a 20-pin DIP package. It runs on a 2V to 6V supply rail, which means it can sit on a 3.3V or 5V bus without a separate level translator — the same part works across both logic families. Each output sources or sinks 7.8 mA. That is enough to drive a standard TTL input or a low-power LED indicator, but not a relay coil or a high-capacitance bus without a buffer stage. On a repair bench, if the scorch mark is on a failed line driver, this part drops in as a straight swap for any 74HC244 in a DIP footprint. ## Two elements, four bits each — the channel map The SN74HC244N contains two independent buffer elements, each handling four bits. That gives you eight total channels in one 20-pin package — useful for splitting a data bus into upper and lower nibbles or driving two separate 4-bit lines from one IC. The 3-state output control lets you float the outputs when the chip is deselected, which is standard for shared data buses where multiple devices talk over the same traces. On a board with a dead octal buffer, the 3-state behaviour is often the first thing to check with a logic probe — a stuck-high output that won't tri-state points to a failed die. ## Temperature grade and package reality Rated for -40°C to 85°C ambient, the SN74HC244N covers industrial temperature range. That means it is fine for factory-floor control panels and outdoor telecom cabinets, but not for under-hood automotive or downhole drilling — those need the -40°C to 125°C grade. The 20-DIP (0.300-inch body width, 7.62 mm) is a through-hole package. It mates with standard DIP sockets or solders directly into plated through-holes. On a rework bench, this is one of the easier ICs to swap — no hot air needed, just a desoldering iron or solder wick and a steady hand. ## Lifecycle and compliance — what the BOM needs to know ROHS3 compliant per the manufacturer.","metaTitle":"SN74HC244N Texas Instruments Buffer, 2V-6V, 20-DIP","metaDescription":"SN74HC244N TI 74HC buffer non-inverting with 3-state outputs, 2V-6V supply, 7.8mA drive, -40°C to 85°C, 20-DIP. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"74HC","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Series":"74HC","Package":"Tube","Logic Type":"Buffer, Non-Inverting","Output Type":"3-State","Mounting Type":"Through Hole","Package / Case":"20-DIP (0.300\\\", 7.62mm)","lifecycle_stage":"eol_hot","Voltage - Supply":"2V ~ 6V","Number of Elements":"2","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"20-PDIP","Current - Output High, Low":"7.8mA, 7.8mA","Number of Bits per Element":"4"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.81","priceTiers":[{"qty":1,"price":"$0.81000","currency":"USD"},{"qty":10,"price":"$0.71700","currency":"USD"},{"qty":25,"price":"$0.67360","currency":"USD"},{"qty":100,"price":"$0.54980","currency":"USD"},{"qty":250,"price":"$0.51064","currency":"USD"},{"qty":500,"price":"$0.43460","currency":"USD"},{"qty":1000,"price":"$0.34768","currency":"USD"},{"qty":2500,"price":"$0.31508","currency":"USD"},{"qty":5000,"price":"$0.30750","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a92bbe76953b63ad6cde4b22adf92abd.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN74HC244N/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to SN74HC244N?","answer":"The 74HC244 function is widely second-sourced across multiple manufacturers, but no specific cross-reference is confirmed here. Confirm the pinout against your PCB before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74HC244N","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74HC244N 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}}