{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74HC245PW","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74HC245PW","canonicalUrl":"https://icboms.com/texas-instruments/SN74HC245PW","factsUrl":"https://icboms.com/api/mcp/products/SN74HC245PW","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments SN74HC245PW, 74HC series octal bus transceiver, non-inverting, 3-state outputs, 2V to 6V supply, 7.8mA drive, -40°C to 85°C, 20-TSSOP package.","salesMarkdown":"## Octal bus transceiver for mixed-voltage backplanes The Texas Instruments SN74HC245PW is an octal (8-bit) non-inverting bus transceiver from the 74HC family, with 3-state outputs on both the A and B ports. It handles bidirectional data flow between two buses under direction (DIR) and output-enable (OE) control. The supply range of 2V to 6V covers both 3.3V and 5V logic rails, making it a common choice for mixed-voltage backplanes, memory interfaces, and peripheral bus isolation in industrial control and telecom equipment. ## 2V to 6V supply — 3.3V and 5V compatibility confirmed The 2V to 6V supply range directly answers the most common fit question: yes, the SN74HC245PW is compatible with 3.3V logic. It operates from 3.3V ±10% with margin, and also runs on 5V for legacy TTL-level buses. The 7.8mA output drive at both high and low levels is typical for HC-series CMOS — enough to drive a few standard CMOS inputs but not high-current loads. If you need to drive longer traces or multiple fan-outs, budget for a buffer stage or move to a higher-drive family like 74HCT or 74ACT. ## Package and mounting The 20-TSSOP package (4.40mm body width, 0.65mm pitch) is reworkable with hot air if you have a fine nozzle and steady hands. The thermal mass is low, so it heats quickly; use a 260°C peak profile with a preheat around 150°C to avoid lifting pads. No exposed pad, so inspection is straightforward. ## Active and ROHS3 compliant It is ROHS3 compliant, so it passes the material restrictions for EU and most global markets. No LTB risk, no urgent need to qualify a second source — though the 74HC245 function is second-sourced by multiple vendors if you want a dual-source strategy.","metaTitle":"SN74HC245PW 74HC Transceiver, 2V-6V, 20-TSSOP","metaDescription":"TI SN74HC245PW octal bus transceiver, 3-state, non-inverting. 2V to 6V supply, 7.8mA drive, -40°C to 85°C. Active, ROHS3.","metaKeywords":null},"attributes":{"series":"74HC","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Series":"74HC","Package":"Tube","Logic Type":"Transceiver, Non-Inverting","Output Type":"3-State","Mounting Type":"Surface Mount","Package / Case":"20-TSSOP (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"2V ~ 6V","Number of Elements":"1","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"20-TSSOP","Current - Output High, Low":"7.8mA, 7.8mA","Number of Bits per Element":"8"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.32","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.32000","currency":"USD"},{"qty":10,"price":"$1.18200","currency":"USD"},{"qty":25,"price":"$1.12200","currency":"USD"},{"qty":100,"price":"$0.92160","currency":"USD"},{"qty":250,"price":"$0.86148","currency":"USD"},{"qty":500,"price":"$0.76130","currency":"USD"},{"qty":1000,"price":"$0.60102","currency":"USD"},{"qty":2500,"price":"$0.56700","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/7b1b8ee206232eb99266702967e2d172.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is SN74HC245PW compatible with 3.3V supply?","answer":"Yes. The 2V to 6V supply range includes 3.3V with margin. It operates correctly at 3.3V ±10% and also at 5V for legacy buses."},{"question":"What is the difference between SN74HC245PW and SN74HCT245PW?","answer":"The SN74HCT245PW is the TTL-compatible version of the same octal transceiver. It uses a 4.5V to 5.5V supply range and has TTL-level input thresholds, making it a direct drop-in for 5V TTL systems. The HC version (SN74HC245PW) has CMOS-level thresholds and a wider 2V to 6V supply range, so it works at 3.3V as well. Pinout and footprint are identical."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74HC245PW","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74HC245PW 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}}