{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74LS245NS","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74LS245NS","canonicalUrl":"https://icboms.com/texas-instruments/SN74LS245NS","factsUrl":"https://icboms.com/api/mcp/products/SN74LS245NS","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74LS series SN74LS245NS octal bus transceiver, non-inverting, 3-state outputs, 4.75V–5.25V supply, 15mA/24mA drive, 20-SOIC (0.209\", 5.30mm width), 0°C to 70°C, active.","salesMarkdown":"## 5V TTL octal bus transceiver — the 74LS workhorse The Texas Instruments SN74LS245NS is an octal (8-bit) bidirectional bus transceiver from the 74LS Schottky TTL family. It provides non-inverting data flow between two 8-bit buses, controlled by a direction pin (DIR) and an output-enable pin (OE) that puts the outputs into a high-impedance 3-state condition. The part operates from a 4.75V to 5.25V supply and delivers 15mA sink / 24mA source drive at the outputs — typical for the 74LS logic level. This is the surface-mount variant in a 20-SOIC (0.209-inch wide, 5.30mm body width) package, designated 20-SO. ## Supply rail and temperature grade — design-in constraints The 4.75V–5.25V supply range means this part is strictly a 5V TTL device. It cannot be run from 3.3V or lower rails. ## Package and footprint — 20-SOIC surface mount The 20-SOIC package (0.209-inch body width, 5.30mm) is a standard surface-mount footprint shared with many 74LS and 74HC octal transceivers. This is a tube-shipped part, not tape-and-reel, which may affect pick-and-place handling for high-volume assembly lines.","metaTitle":"SN74LS245NS 74LS Transceiver, 20-SOIC, 4.75V–5.25V","metaDescription":"Texas Instruments SN74LS245NS 74LS octal bus transceiver, non-inverting, 3-state outputs, 15mA/24mA drive, 20-SOIC, 0°C to 70°C, active lifecycle.","metaKeywords":null},"attributes":{"series":"74LS","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Series":"74LS","Package":"Tube","Logic Type":"Transceiver, Non-Inverting","Output Type":"3-State","Mounting Type":"Surface Mount","Package / Case":"20-SOIC (0.209\\\", 5.30mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"4.75V ~ 5.25V","Number of Elements":"1","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"20-SO","Current - Output High, Low":"15mA, 24mA","Number of Bits per Element":"8"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.3","priceTiers":[{"qty":1,"price":"$1.30000","currency":"USD"},{"qty":10,"price":"$1.16600","currency":"USD"},{"qty":25,"price":"$1.10720","currency":"USD"},{"qty":100,"price":"$0.90940","currency":"USD"},{"qty":250,"price":"$0.85008","currency":"USD"},{"qty":500,"price":"$0.75122","currency":"USD"},{"qty":1000,"price":"$0.59307","currency":"USD"},{"qty":2500,"price":"$0.55950","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/b65ad1a925cd0c1b9294cc5833595c4f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN74LS245NS/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74LS245NS","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74LS245NS 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}}