{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S9997-IBZ80-C1T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S9997-IBZ80-C1T","canonicalUrl":"https://icboms.com/texas-instruments/LM3S9997-IBZ80-C1T","factsUrl":"https://icboms.com/api/mcp/products/LM3S9997-IBZ80-C1T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 9000 series LM3S9997-IBZ80-C1T, 32-Bit Single-Core MCU, 80MHz, 256KB Flash, 64K x 8 RAM, 60 I/O, Ethernet, CAN, USB OTG, 108-LFBGA, -40°C~85°C.","salesMarkdown":"## 80 MHz core and 256 KB Flash — enough headroom for a connected control loop The 80 MHz Cortex-M3 delivers around 1.25 DMIPS/MHz, giving you about 100 DMIPS of compute headroom. That is enough to run a lightweight TCP/IP stack, a CANopen node, and a control loop without thrashing. If your application needs more memory for large packet buffers or a GUI frame buffer, you will want to budget external SRAM or SDRAM on the external bus interface. ## Ethernet, CAN, USB OTG — the connectivity trifecta The standout feature of this MCU is its integrated Ethernet MAC+PHY, dual CAN controllers, and USB OTG. That combination lets a single chip act as a fieldbus gateway (CAN to Ethernet), a data logger (USB host to thumb drive), or a programmable logic controller with a remote HMI link. The 60 general-purpose I/O pins, many with 5 V tolerance, give you room for local sensor inputs, relay drivers, and indicator LEDs without an external GPIO expander. ## Industrial temperature range and 108-ball BGA The 108-ball LFBGA package (10x10 mm, 0.8 mm pitch) is a compact footprint but requires controlled soldering — not a hand-solder part for a prototype board. Plan for a 4- or 6-layer PCB with via-in-pad if you route all 60 I/O and the Ethernet differential pairs. The core supply is a tight 1.235 V to 1.365 V, so you will need a dedicated 1.3 V LDO from the 3.3 V rail. That means no further factory orders are accepted, and the last-time-buy window has closed.","metaTitle":"LM3S9997-IBZ80-C1T Stellaris Cortex-M3 MCU, 80 MHz","metaDescription":"LM3S9997-IBZ80-C1T is a 32-bit ARM Cortex-M3 MCU from the Stellaris 9000 series. 80 MHz core, 256 KB Flash, 64 KB RAM, Ethernet/CAN/USB OTG. Industrial temp.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"80MHz","Series":"Stellaris® ARM® Cortex®-M3S 9000","Package":"Tape & Reel (TR)","RAM Size":"64K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT","Connectivity":"CANbus, Ethernet, I²C, IrDA, LINbus, Microwire, QEI, SPI, SSI, UART/USART, USB OTG","Mounting Type":"Surface Mount","Number of I/O":"60","Core Processor":"ARM® Cortex®-M3","Package / Case":"108-LFBGA","Product Status":"Obsolete","Data Converters":"A/D 16x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S9997","Program Memory Size":"256KB (256K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"108-BGA (10x10)","Voltage - Supply (Vcc/Vdd)":"1.235V ~ 1.365V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a16760f1b1ed2b544492e5acf48839b9.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the replacement for LM3S9997-IBZ80-C1T?","answer":"Texas Instruments has not published a direct pin-compatible replacement for this Stellaris 9000 series MCU. For new designs, consider a current-production Cortex-M4 or Cortex-M7 part with Ethernet and CAN interfaces from TI's Tiva or Sitara families, though you will need to rework the PCB layout and firmware."},{"question":"What is the speed of the LM3S9997-IBZ80-C1T?","answer":"The core runs at 80 MHz."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S9997-IBZ80-C1T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S9997-IBZ80-C1T 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}}