{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1H11-IBZ50-A1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1H11-IBZ50-A1","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1H11-IBZ50-A1","factsUrl":"https://icboms.com/api/mcp/products/LM3S1H11-IBZ50-A1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris ARM Cortex-M3S 1000 series MCU, LM3S1H11-IBZ50-A1, 50MHz 32-bit single-core, 512KB FLASH, 48KB RAM, 67 I/O, 108-LFBGA, -40 to 85°C.","salesMarkdown":"The LM3S1H11-IBZ50-A1: On-chip memory includes 512 KB of flash for program storage and 48 KB of SRAM for data and stack — the flash is large enough to hold a full application stack plus a bootloader, while the SRAM supports moderate-sized buffers for Ethernet or display frame data. It ships in a 108-ball LFBGA (10×10 mm) package — the 0.8 mm ball pitch requires a multi-layer PCB for fan-out, but the compact footprint saves board real estate compared to a larger QFP. Connectivity covers EBI/EMI, I²C, IrDA, LINbus, Microwire, SPI, SSI, and UART/USART — the external bus interface (EBI/EMI) is the standout here, letting you attach parallel SRAM, NOR flash, or an FPGA without bit-banging GPIO. 67 general-purpose I/O pins give enough headroom for a parallel LCD interface, keypad matrix, and several sensor buses simultaneously. On-chip peripherals include brown-out detect, DMA, POR, PWM, and a watchdog timer — the DMA engine can move data between peripherals and memory without CPU intervention, freeing the core for control loops. The 8-channel 12-bit ADC samples analog inputs from temperature sensors, potentiometers, or current shunts — enough resolution for most closed-loop control applications that don't require an external converter. ## Obsolete — sourcing for legacy and repair If you're repairing a controller board that has a scorch mark near the BGA, this is the part that goes back on the rework station.","metaTitle":"TI LM3S1H11-IBZ50-A1 Stellaris ARM Cortex-M3 MCU, 50MHz","metaDescription":"Texas Instruments LM3S1H11-IBZ50-A1 Stellaris ARM Cortex-M3 MCU, 50MHz, 512KB Flash, 48KB RAM, 108-BGA.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"50MHz","Series":"Stellaris® ARM® Cortex®-M3S 1000","Package":"Tray","RAM Size":"48K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, POR, PWM, WDT","Connectivity":"EBI/EMI, I²C, IrDA, LINbus, Microwire, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"67","Core Processor":"ARM® Cortex®-M3","Package / Case":"108-LFBGA","Product Status":"Obsolete","Data Converters":"A/D 8x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S1H11","Program Memory Size":"512KB (512K 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/68920ccd04e046c9d0ddb9ddf41bb2dc.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the core speed and memory configuration of the LM3S1H11-IBZ50-A1?","answer":"The ARM Cortex-M3 core runs at 50 MHz. On-chip memory is 512 KB of flash for program storage and 48 KB of SRAM for data. This combination supports moderate-complexity firmware with a bootloader and real-time data buffers."},{"question":"What package does the LM3S1H11-IBZ50-A1 use, and what does that mean for PCB layout?","answer":"It comes in a 108-ball LFBGA (10×10 mm) package with a 0.8 mm ball pitch. This requires a multi-layer PCB for fan-out routing — typically four layers minimum — but the compact footprint saves board space compared to a larger QFP package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1H11-IBZ50-A1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S1H11-IBZ50-A1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:47:57.317Z","lastPublished":"2026-07-21T02:47:57.317Z","indexable":true}}