{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM90CIMM","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM90CIMM","canonicalUrl":"https://icboms.com/texas-instruments/LM90CIMM","factsUrl":"https://icboms.com/api/mcp/products/LM90CIMM","rawCanonicalId":null},"summary":{"shortDescription":"LM90CIMM digital temperature sensor, local/remote, 8 b (local) / 11 b (remote) resolution, I²C/SMBUS interface, 8-VSSOP package, bulk.","salesMarkdown":"## Active sensor, RoHS flag — two decisions, one part The LM90CIMM: RoHS non-compliant status means this part cannot ship into EU RoHS-regulated markets without an exemption. For legacy assemblies that already have a Pb exemption or are in regions without RoHS enforcement, that is not a blocker — but any BOM engineer adding it to a new design under EU/REACH rules needs an explicit exemption letter or a drop-in alternative. ## 8-bit local, 11-bit remote — where the resolution matters Local channel reads the board ambient at 8-bit resolution (1°C LSB typical) — coarse but adequate for overtemperature shutdown or fan control. The remote channel resolves to 11 bits (0.125°C LSB), which is the channel you route to an external diode on a CPU, FPGA, or power module for fine-grained thermal monitoring. Accuracy is ±4°C across the full range — this is not a precision metrology part. It is a guard-band sensor: set the programmable limit a few degrees below the absolute max junction temperature and let the output switch or shutdown mode catch the overtemp event before the silicon reaches critical. Supply range is tight at 3.0–3.6 V — the sensor runs cleanly off a 3.3 V rail but has no headroom for a 2.5 V or 5 V bus. The I²C/SMBUS interface operates at the same Vdd, so the pull-up resistors and bus voltage must match. ## 0°C to 125°C operating — indoor and industrial box only Operating temperature range is 0°C to 125°C, with the local and remote sensing linearised from 0°C to 85°C. That covers most indoor electronics, telecom cabinets, and industrial control enclosures — but it excludes outdoor cold-start below freezing and under-hood automotive applications. The 8-VSSOP package (MSOP-8, 3.00 mm width) is a standard footprint for low-pin-count sensors. Bulk packaging means no reel or tape — the parts ship in tubes or trays, which is typical for prototype runs or small-series production but less efficient for high-volume pick-and-place lines that expect tape-and-reel.","metaTitle":"LM90CIMM Digital Temp Sensor, 8/11b, I²C, 8-VSSOP","metaDescription":"LM90CIMM local/remote digital temp sensor, 8b (local) / 11b (remote) resolution, ±4°C accuracy, I²C/SMBUS, 8-VSSOP. Active lifecycle, RoHS non-compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Bulk","Features":"One-Shot, Output Switch, Programmable Limit, Shutdown Mode, Standby Mode","Resolution":"8 b (Local), 11 b (Remote)","Output Type":"2-Wire Serial, I²C/SMBUS","Sensor Type":"Digital, Local/Remote","Mounting Type":"Surface Mount","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width)","Test Condition":"25°C ~ 125°C","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 3.6V","Operating Temperature":"0°C ~ 125°C","Supplier Device Package":"8-VSSOP","Accuracy - Highest (Lowest)":"±4°C","Sensing Temperature - Local":"0°C ~ 85°C","Sensing Temperature - Remote":"0°C ~ 85°C"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.87","stockQuantity":0,"priceTiers":[{"qty":344,"price":"$0.87000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/8130b8b8e484748d9fc7fc90e66576e1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What does the RoHS non-compliant status mean for my BOM?","answer":"The LM90CIMM is not RoHS compliant — it contains lead (Pb) above the 0.1% threshold. It cannot be shipped into EU RoHS-regulated markets without a valid exemption (e.g., for high-reliability or legacy equipment). For regions without RoHS enforcement, or for designs already carrying a Pb exemption, this is not a blocker. Confirm your end-market compliance requirements before committing the BOM line."},{"question":"What is the LM90CIMM used for?","answer":"It is a digital temperature sensor that reads both its own board ambient temperature (local, 8-bit resolution) and the temperature of an external diode-connected transistor (remote, 11-bit resolution) — typically the thermal diode inside a CPU, FPGA, or power module. The I²C/SMBUS interface reports both values to the system controller. Features like programmable limit, one-shot conversion, shutdown mode, and standby mode allow it to serve as an overtemperature watchdog or a low-power periodic monitor."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM90CIMM","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM90CIMM 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}}