{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74AHCT245N","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74AHCT245N","canonicalUrl":"https://icboms.com/texas-instruments/SN74AHCT245N","factsUrl":"https://icboms.com/api/mcp/products/SN74AHCT245N","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments SN74AHCT245N, Series 74AHCT, Logic Type Transceiver Non-Inverting, Output Type 3-State, 8-Bit, 1 Element, 4.5V-5.5V Supply, 8mA Output Current, Through Hole 20-DIP, -40°C to 125°C.","salesMarkdown":"The 8 mA source and sink rating is typical for 5V CMOS bus transceivers. It can drive up to eight LSTTL loads or a handful of CMOS inputs on a short backplane trace. If your load requires more than 8 mA per line — say, driving an LED indicator or a relay coil — you will need a buffer or a higher-drive part like the SN74ABT2245DW (32 mA per channel). For pure logic-level translation between 5V domains, the 8 mA is sufficient and keeps the package cool. ## Through-hole package – board integration note The through-hole mounting means you can hand-solder it without a reflow oven, and it is easier to probe during debug.","metaTitle":"SN74AHCT245N 74AHCT Octal Bus Transceiver, 3-State, 20-DIP","metaDescription":"TI SN74AHCT245N octal bus transceiver, non-inverting, 3-state outputs, 4.5V-5.5V supply, 8mA drive, -40°C to 125°C, 20-DIP. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":"74AHCT","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Series":"74AHCT","Package":"Tube","Logic Type":"Transceiver, 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":"1","Operating Temperature":"-40°C ~ 125°C (TA)","Supplier Device Package":"20-PDIP","Current - Output High, Low":"8mA, 8mA","Number of Bits per Element":"8"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8","priceTiers":[{"qty":1,"price":"$0.80000","currency":"USD"},{"qty":10,"price":"$0.70700","currency":"USD"},{"qty":25,"price":"$0.66360","currency":"USD"},{"qty":100,"price":"$0.54170","currency":"USD"},{"qty":250,"price":"$0.50320","currency":"USD"},{"qty":500,"price":"$0.42824","currency":"USD"},{"qty":1000,"price":"$0.34259","currency":"USD"},{"qty":2500,"price":"$0.31047","currency":"USD"},{"qty":5000,"price":"$0.30300","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/034637482e94c8e2268fe6c1cd0a03cb.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN74AHCT245N/alternatives.json"},"ai":{"faq":[{"question":"SN74AHCT245N pinout and function table?","answer":"The SN74AHCT245N uses the standard 20-pin DIP pinout for octal bus transceivers: pins 1 (DIR) and 19 (OE) control direction and output enable; pins 2-9 (A1-A8) and 11-18 (-) are the data ports; pin 10 is GND; pin 20 is VCC. The function table is: when OE is low and DIR is high, data flows from A to B; when OE is low and DIR is low, data flows from B to A; when OE is high, outputs are high-impedance."},{"question":"SN74AHCT245N equivalent or replacement?","answer":"For a direct through-hole replacement, the SN74HCT245N is pin-compatible and functionally identical, but uses HCT logic thresholds instead of AHCT. The SN74ABT2245DW offers higher drive (32 mA) but is surface-mount and commercial temperature only. The SN74LS645-1N is another through-hole option but has lower drive (15 mA) and a narrower supply range."},{"question":"Can SN74AHCT245N replace SN74HCT245N?","answer":"Yes, the SN74AHCT245N is pin-compatible and functionally identical to the SN74HCT245N. The AHCT family has slightly different input thresholds (TTL-compatible) and faster propagation delays, but in most 5V bus applications it is a drop-in replacement. Verify the timing in your specific bus cycle if running near the maximum frequency."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74AHCT245N","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74AHCT245N 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}}