{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"74F244PC","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"74F244PC","canonicalUrl":"https://icboms.com/texas-instruments/74F244PC","factsUrl":"https://icboms.com/api/mcp/products/74F244PC","rawCanonicalId":null},"summary":{"shortDescription":"74F series, 74F244PC, Buffer, Non-Inverting, 3-State, 2 Elements, 4 Bits per Element, 4.5V ~ 5.5V Supply, 3mA / 64mA Output, 0°C ~ 70°C, 20-DIP (0.300\", 7.62mm), Through Hole, Active.","salesMarkdown":"## Buffer with 3-state outputs — legacy DIP for retrofit and bench work The 74F244PC is a 74F-series octal buffer with non-inverting logic and 3-state outputs, packaged in a 20-pin DIP with 0.300\" body width (20-PDIP). It contains two independent elements, each handling four bits, for a total of eight buffered channels. ## Output drive — the 64 mA sink is the headline number The high-level output current is rated at 3 mA, while the low-level sink can handle 64 mA. That sink capability is what stands out in the 74F family — it lets this buffer drive multiple TTL loads, LED indicators, or relay coils through a resistor directly, without an external transistor stage. The 3 mA source is more modest; if you need to drive a bus with significant pull-up current, budget a buffer stage or use a higher-drive part. ## Lifecycle and compliance — active, but RoHS non-compliant The non-compliant status typically means the leads are tin-lead plated, which is still preferred in some high-reliability soldering processes (e.g., military or aerospace hand-solder rework) where tin whisker risk is a concern. ## Where the 74F244PC sits versus its peers Compared to the SN74LS645-1N (a single-element 8-bit transceiver in 20-DIP), the 74F244PC is a pure buffer — no direction control, no bidirectional bus handling. The 74F244PC's 64 mA sink is roughly 4× the LS645's 15 mA output, so it drives heavier loads without an external buffer. For a drop-in DIP replacement with the same pinout, the 74F244PC's direct functional equivalent is another 74F244 in a DIP package; the 74ACT16833DL is a bulk-listed part but different logic and pinout.","metaTitle":"74F244PC Buffer, Non-Inverting, 3-State, 20-DIP, Active","metaDescription":"74F244PC 74F series buffer with 3-state outputs, 2 elements of 4 bits, 4.5V to 5.5V supply, 0°C to 70°C.","metaKeywords":null},"attributes":{"series":"74F","packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Series":"74F","Package":"Bulk","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":"4.5V ~ 5.5V","Number of Elements":"2","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"20-PDIP","Current - Output High, Low":"3mA, 64mA","Number of Bits per Element":"4"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.68","stockQuantity":0,"priceTiers":[{"qty":444,"price":"$0.68000","currency":"USD"}]},"links":{"datasheetUrl":"https://rocelec.widen.net/view/pdf/rdekfuzce7/FAIRS24873-1.pdf?t.download=true&u=5oefqw","sourceUrl":null},"ai":{"faq":[{"question":"What is the replacement for 74F244PC?","answer":"The 74F244PC is still active, so a direct replacement is another 74F244 in a 20-DIP package from the same series. For a functionally similar buffer with different drive or voltage, consider the SN74LS645-1N (8-bit transceiver, lower drive) or the 74LVTH16245ADGVR (surface-mount, 3.3 V) — both are different pinouts and logic families, not drop-in replacements."},{"question":"Does the 74F244PC work with 3.3 V logic?","answer":"No. Running at 3.3 V would violate the minimum supply spec and produce undefined logic levels. For 3.3 V operation, use a 74LVT or 74LVTH series buffer instead."},{"question":"What is the difference between 74F244 and 74F245?","answer":"The 74F244 is an octal buffer with two 4-bit elements and no direction control — it always drives from input to output. The 74F245 is an octal transceiver with a direction pin (DIR) that allows bidirectional data flow, plus an output-enable pin. Both have 3-state outputs and similar drive capability, but the 245 is a bus transceiver while the 244 is a unidirectional buffer."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/74F244PC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/74F244PC 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}}