{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CD74HC4543E","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"CD74HC4543E","canonicalUrl":"https://icboms.com/texas-instruments/CD74HC4543E","factsUrl":"https://icboms.com/api/mcp/products/CD74HC4543E","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74HC series BCD-to-7-segment latch/decoder/driver, 1 digit LED display, 8 µA supply, 2V to 6V, -55°C to 125°C, 16-DIP through-hole.","salesMarkdown":"## BCD-to-7-segment driver for one-digit LED displays The CD74HC4543E is a CMOS BCD-to-7-segment latch, decoder, and driver from the 74HC family, designed to drive a single common-cathode or common-anode LED digit. It accepts a 4-bit BCD input, latches it, decodes to a 7-segment pattern, and drives the segments directly. The 8 µA typical supply current makes it suitable for battery-powered or always-on display panels where every microamp counts. ## 2V to 6V supply and -55°C to 125°C temperature range Rated for a supply range of 2V to 6V, this driver works from a single lithium cell or a regulated 5V rail. The -55°C to 125°C operating temperature covers military and industrial environments — avionics panels, outdoor telecom displays, or engine-bay instrumentation where commercial-grade parts would drift or fail. ## Through-hole 16-DIP for prototyping and legacy sockets Housed in a 16-pin DIP (0.300\" width, 7.62 mm pitch), the CD74HC4543E fits standard breadboards, prototyping boards, and socketed production boards. The through-hole package simplifies hand-assembly and rework — no fine-pitch soldering, no stencil required. Supplier device package is 16-PDIP. ## Active lifecycle — no obsolescence concern Texas Instruments lists the CD74HC4543E as Active with ROHS3 compliance. There is no last-time-buy notice or NRND flag.","metaTitle":"CD74HC4543E BCD-to-7-Segment LED Driver, 16-DIP, 2V-6V","metaDescription":"CD74HC4543E 74HC BCD-to-7-segment latch/decoder/driver for 1-digit LED display. 8 µA supply, 2V-6V range, -55°C to 125°C. Active, through-hole 16-DIP.","metaKeywords":null},"attributes":{"series":"74HC","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Series":"74HC","Package":"Tube","Interface":"BCD","Display Type":"LED","Configuration":"7 Segment","Mounting Type":"Through Hole","Package / Case":"16-DIP (0.300\\\", 7.62mm)","lifecycle_stage":"eol_hot","Current - Supply":"8 µA","Voltage - Supply":"2V ~ 6V","Digits or Characters":"1 Digit","Operating Temperature":"-55°C ~ 125°C","Supplier Device Package":"16-PDIP"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.58","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.58000","currency":"USD"},{"qty":10,"price":"$1.41000","currency":"USD"},{"qty":25,"price":"$1.33840","currency":"USD"},{"qty":100,"price":"$1.09950","currency":"USD"},{"qty":250,"price":"$1.02784","currency":"USD"},{"qty":500,"price":"$0.90832","currency":"USD"},{"qty":1000,"price":"$0.71709","currency":"USD"},{"qty":2500,"price":"$0.67650","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/9d953fd4102124bb2b7bff0e33848756.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is CD74HC4543E?","answer":"The CD74HC4543E is a CMOS BCD-to-7-segment latch/decoder/driver IC from the 74HC series. It drives one LED digit, operates from 2V to 6V, draws 8 µA typical supply current, and comes in a 16-pin DIP package."},{"question":"What is the difference between CD74HC4543E and CD4511?","answer":"Both are BCD-to-7-segment drivers, but the CD74HC4543E is a 74HC CMOS part with a wider supply range (2V to 6V) and lower quiescent current (8 µA) versus the CD4511's typical 5V-only operation and higher supply draw. The CD74HC4543E also includes a latch input, while the CD4511 offers a lamp-test function. Pinouts differ — verify the board footprint before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/CD74HC4543E","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/CD74HC4543E when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T10:39:33.080Z","lastPublished":"2026-07-16T10:39:33.080Z","indexable":true}}