{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MSP430F5309IZQER","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MSP430F5309IZQER","canonicalUrl":"https://icboms.com/texas-instruments/MSP430F5309IZQER","factsUrl":"https://icboms.com/api/mcp/products/MSP430F5309IZQER","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MSP430F5xx series 16-bit MCU, MSP430F5309IZQER, 25 MHz CPUXV2 core, 24 KB Flash, 6 KB RAM, 47 I/O, I²C/SPI/UART/LINbus, 80-BGA MICROSTAR JUNIOR (5x5 mm), -40°C to 85°C.","salesMarkdown":"24 KB Flash and 6 KB RAM is a mid-range configuration in the MSP430F5xx family. It holds a modest firmware image — a bootloader, communication stack, and application logic — with enough RAM for a few hundred bytes of sensor buffers and a protocol frame. If the design needs over-the-air updates or a larger lookup table, the Flash wall will be hit early; plan accordingly. ## Package and mounting — BGA layout considerations The 80-ball BGA MICROSTAR JUNIOR (5x5 mm) is a fine-pitch, low-profile array. Board-level reliability depends on solder-paste volume and reflow profile; the small ball diameter means via-in-pad is not recommended unless filled and capped. The 47 I/O lines fan out from the BGA — route signals on inner layers to keep the top layer clear for the BGA escape pattern. ## Peripherals and voltage range","metaTitle":"TI MSP430F5309IZQER 16-bit MCU, 25 MHz, 24 KB Flash, 80-BGA","metaDescription":"Texas Instruments MSP430F5309IZQER 16-bit MCU, 25 MHz CPU, 24 KB Flash, 6 KB RAM, 47 I/O, industrial temp -40°C to 85°C. Obsolete — sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"25MHz","Series":"MSP430F5xx","Package":"Tape & Reel (TR); Cut Tape (CT)","RAM Size":"6K x 8","Core Size":"16-Bit","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, POR, PWM, WDT","Connectivity":"I²C, IrDA, LINbus, SCI, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"47","Core Processor":"MSP430 CPUXV2","Package / Case":"80-VFBGA","Product Status":"Obsolete","Data Converters":"A/D 12x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"MSP430F5309","Program Memory Size":"24KB (24K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"80-BGA MICROSTAR JUNIOR (5x5)","Voltage - Supply (Vcc/Vdd)":"1.8V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/bc9d069fa8c9da585942ab264ba6a82d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MSP430F5309IZQER/alternatives.json"},"ai":{"faq":[{"question":"What is MSP430F5309IZQER's listed speed?","answer":"The CPU core runs at 25 MHz, based on the MSP430 CPUXV2 architecture with a hardware multiplier."},{"question":"What is the closest pin-compatible alternative to MSP430F5309IZQER?","answer":"No official pin-compatible successor is recorded for this exact 80-BGA package variant. A redesign using a QFP-packaged MSP430F5xx sibling (e.g., MSP430F5309IPN) would require a PCB layout change."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MSP430F5309IZQER","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MSP430F5309IZQER when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}