{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MSP430F1491IPM","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MSP430F1491IPM","canonicalUrl":"https://icboms.com/texas-instruments/MSP430F1491IPM","factsUrl":"https://icboms.com/api/mcp/products/MSP430F1491IPM","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MSP430F1491IPM, 16-bit MSP430 CPU16 MCU, 8 MHz, 60 KB Flash, 2 KB RAM, 48 I/O, SPI/UART, POR/PWM/WDT, 1.8 V–3.6 V, -40°C to 85°C, 64-LQFP (10x10 mm).","salesMarkdown":"## MSP430F1491IPM — 16-bit ultra-low-power MCU for industrial sensing and control The part is designed for battery-operated and industrial applications where low power consumption is the primary selection criterion — the MSP430 architecture draws microamps in standby and wakes quickly to handle sensor reads or communication packets. The 8 MHz clock rate sets a deterministic throughput ceiling. For a 16-bit RISC-like core executing most instructions in a single cycle, that yields roughly 8 MIPS. The trade-off is that the same 8 MHz clock keeps dynamic current low, which is the whole point of the MSP430 family: you run the CPU just fast enough to service the event, then drop back to sleep. The 60 KB Flash (organized as 60 K × 8 plus 256 bytes of information memory) is generous for a mid-range MSP430. It can hold a full sensor-fusion library, a communication stack (e.g., a simple Modbus RTU or a custom binary protocol), and a bootloader. The 2 KB SRAM is the tighter resource — it must accommodate the call stack, interrupt vectors, and all runtime data buffers. If your application uses large lookup tables or multi-packet FIFOs, the 2 KB ceiling will force either external SRAM or a move to a higher-RAM variant in the MSP430x1xx family. ## Package and I/O — 64-LQFP with 48 accessible pins The MSP430F1491IPM comes in a 64-LQFP (10x10 mm) body with 0.5 mm pitch — a standard, inspectable footprint that reflows reliably with a normal leaded or lead-free profile. Of the 64 pins, 48 are general-purpose I/O, which is enough to interface a parallel LCD, a key matrix, several sensors, and a serial bus simultaneously without a port expander. The ROHS3 compliance covers EU and global regulatory requirements for lead-free assembly.","metaTitle":"TI MSP430F1491IPM 16-bit MCU, 8 MHz, 60 KB Flash, 64-LQFP","metaDescription":"Texas Instruments MSP430F1491IPM 16-bit MCU with 8 MHz core, 60 KB Flash, 2 KB RAM, 48 I/O, SPI/UART, -40°C to 85°C, 64-LQFP. Active lifecycle.","metaKeywords":null},"attributes":{"series":"MSP430x1xx","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"8MHz","Series":"MSP430x1xx","Package":"Tray","RAM Size":"2K x 8","Core Size":"16-Bit","EEPROM Size":"-","Peripherals":"POR, PWM, WDT","Connectivity":"SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"48","Core Processor":"MSP430 CPU16","Package / Case":"64-LQFP","Product Status":"Active","Data Converters":"Slope A/D","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"MSP430F1491","Program Memory Size":"60KB (60K x 8 + 256B)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"64-LQFP (10x10)","Voltage - Supply (Vcc/Vdd)":"1.8V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$19.1600","priceTiers":[{"qty":1,"price":"$19.16000","currency":"USD"},{"qty":10,"price":"$17.60900","currency":"USD"},{"qty":25,"price":"$16.87880","currency":"USD"},{"qty":160,"price":"$14.87144","currency":"USD"},{"qty":320,"price":"$14.14159","currency":"USD"},{"qty":480,"price":"$13.22923","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/2aa7acdd7480e3bd3263b4c69f43f618.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MSP430F1491IPM/alternatives.json"},"ai":{"faq":[{"question":"Can MSP430F1491IPM replace MSP430F149?","answer":"The MSP430F1491IPM is a direct functional upgrade within the same MSP430x1xx family. It offers the same 60 KB Flash, 2 KB RAM, 48 I/O, and peripheral set as the MSP430F149, with the same 64-LQFP footprint. The '1' suffix typically indicates a revision with improved ADC or oscillator characteristics. Pin compatibility should be verified against the respective datasheets, but the base part numbers share the same package and memory map."},{"question":"What is MSP430F1491IPM's listed speed?","answer":"The MSP430F1491IPM is rated for an 8 MHz maximum CPU clock speed. This is the core operating frequency for the 16-bit MSP430 CPU16, delivering approximately 8 MIPS in single-cycle instruction execution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MSP430F1491IPM","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MSP430F1491IPM 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}}