{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TLC2543IN","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TLC2543IN","canonicalUrl":"https://icboms.com/texas-instruments/TLC2543IN","factsUrl":"https://icboms.com/api/mcp/products/TLC2543IN","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TLC2543IN, 12-bit SAR ADC, 11 single-ended inputs, SPI data interface, 66 kS/s sampling rate, 5V supply, -40°C to 85°C, 20-PDIP tube.","salesMarkdown":"## What this 12-bit SAR ADC brings to a multi-sensor board The TLC2543IN: 12-bit SAR ADC, 11 single-ended inputs via integrated mux, SPI interface, 5V supply, 66 kS/s, 20-pin DIP. ## Industrial temperature range and through-hole package Rated for -40°C to 85°C, this ADC is at home in factory-floor enclosures, outdoor telecom cabinets, or engine-bay monitoring modules where commercial-grade parts won't survive. The 20-pin PDIP package is socket-friendly and easy to hand-rework — a real advantage during prototyping or when a field-service tech needs to swap a suspect ADC without hot-air gear. Tube shipment is the norm for DIP parts; if your pick-and-place line expects tape, this isn't it. ## Active lifecycle — no LTB pressure The TLC2543IN carries an active lifecycle status. That means no last-time-buy clock ticking, no scrambling for end-of-life inventory. It's still a valid choice for a production BOM freeze or a new design where through-hole assembly is acceptable. ROHS3 compliant, so it passes modern environmental requirements without a waiver.","metaTitle":"TLC2543IN 12-bit SAR ADC, 11-channel, SPI, DIP-20","metaDescription":"TLC2543IN 12-bit SAR ADC with 11 single-ended inputs, SPI interface, 66 kS/s, -40°C to 85°C, 20-PDIP. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tube","Input Type":"Single Ended","Architecture":"SAR","Configuration":"MUX-S/H-ADC","Mounting Type":"Through Hole","Data Interface":"SPI","Number of Bits":"12","Package / Case":"20-DIP (0.300\\\", 7.62mm)","Reference Type":"External","Ratio - S/H:ADC":"1:1","lifecycle_stage":"eol_hot","Number of Inputs":"11","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"20-PDIP","Number of A/D Converters":"1","Voltage - Supply, Analog":"5V","Voltage - Supply, Digital":"5V","Sampling Rate (Per Second)":"66k"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$16.16","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$16.16000","currency":"USD"},{"qty":10,"price":"$14.85300","currency":"USD"},{"qty":25,"price":"$14.23680","currency":"USD"},{"qty":100,"price":"$12.54380","currency":"USD"},{"qty":250,"price":"$11.92816","currency":"USD"},{"qty":500,"price":"$11.15862","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/649775524bd7e3d62028fb8dea70b65b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is TLC2543IN obsolete or active?","answer":"The TLC2543IN is active in its lifecycle. No end-of-life notice is in effect, and it remains a viable choice for both new designs and ongoing production."},{"question":"What is the resolution of TLC2543IN?","answer":"The TLC2543IN is a 12-bit ADC. At a 5V reference, each LSB represents about 1.22 mV (5V / 4096). That resolution is well matched to 0.1% sensor spans and 10-bit-or-better control loops."},{"question":"What is the closest functional equivalent to TLC2543IN?","answer":"The ADS1285IRHBT is a different class of part — 32-bit sigma-delta, differential inputs, surface-mount, 4 kS/s. It is not a pin-compatible or drop-in replacement for the TLC2543IN. No direct second-source alternate is listed in the available records."},{"question":"Can TLC2543IN replace TLC2543?","answer":"The TLC2543IN is the through-hole DIP variant of the TLC2543 family. It shares the same 12-bit SAR core, 11-channel mux, SPI interface, and 5V supply. The 'IN' suffix indicates the industrial temperature range (-40°C to 85°C) and PDIP package. If your existing BOM uses a TLC2543 in a DIP-20 socket, the TLC2543IN is a functional match."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TLC2543IN","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TLC2543IN 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}}