{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74HC166PWR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74HC166PWR","canonicalUrl":"https://icboms.com/texas-instruments/SN74HC166PWR","factsUrl":"https://icboms.com/api/mcp/products/SN74HC166PWR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74HC series, SN74HC166PWR, 8-bit parallel or serial to serial shift register, push-pull output, 2V to 6V supply, -40°C to 85°C, 16-TSSOP surface mount package.","salesMarkdown":"## 8-bit shift register in the 74HC family The SN74HC166PWR is an 8-bit parallel or serial-to-serial shift register from TI's 74HC logic family. It takes in data on eight parallel inputs or a single serial input and shifts it out on the serial output, controlled by a shift/load pin and a clock. The push-pull output stage drives standard CMOS or TTL loads directly. This part is a workhorse for expanding digital inputs on a microcontroller — think reading a bank of switches or a keypad over a few GPIO lines. ## Supply range and temperature grade Supply range is 2V to 6V. Operating temperature is -40°C to 85°C. ## Sourcing and lifecycle It's a current 74HC line item from TI, widely available through distribution. No last-time-buy risk here.","metaTitle":"SN74HC166PWR 74HC Shift Register, 8-Bit, 16-TSSOP, 2V-6V","metaDescription":"TI SN74HC166PWR 8-bit parallel/serial shift register, 74HC logic, 2V-6V supply, -40°C to 85°C, 16-TSSOP.","metaKeywords":null},"attributes":{"series":"74HC","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Series":"74HC","Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Parallel or Serial to Serial","Logic Type":"Shift Register","Output Type":"Push-Pull","Mounting Type":"Surface Mount","Package / Case":"16-TSSOP (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"2V ~ 6V","Number of Elements":"1","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"16-TSSOP","Number of Bits per Element":"8"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.58","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.58000","currency":"USD"},{"qty":10,"price":"$0.50100","currency":"USD"},{"qty":25,"price":"$0.46760","currency":"USD"},{"qty":100,"price":"$0.37400","currency":"USD"},{"qty":250,"price":"$0.34724","currency":"USD"},{"qty":500,"price":"$0.29384","currency":"USD"},{"qty":1000,"price":"$0.22705","currency":"USD"},{"qty":2000,"price":"$0.20702","currency":"USD"},{"qty":6000,"price":"$0.19366","currency":"USD"},{"qty":10000,"price":"$0.18900","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/1556c2aaadb487aa6629017e6b081682.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is SN74HC166PWR compatible with 5V logic?","answer":"Yes, the 2V to 6V supply range covers 5V operation. The inputs and outputs are 5V-tolerant at VCC = 5V, so it interfaces directly with 5V CMOS and TTL logic families."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74HC166PWR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74HC166PWR 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}}