{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MSP430F4351IPZR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MSP430F4351IPZR","canonicalUrl":"https://icboms.com/texas-instruments/MSP430F4351IPZR","factsUrl":"https://icboms.com/api/mcp/products/MSP430F4351IPZR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MSP430x4xx series, MSP430F4351IPZR 16-bit MCU, MSP430 CPU16 core at 8 MHz, 16 KB FLASH, 512 x 8 RAM, 48 I/O, SPI/UART, 1.8-3.6 V, -40 to 85°C, 100-LQFP (14x14 mm).","salesMarkdown":"## Core and memory budget for instrumentation firmware The MSP430F4351IPZR runs the 16-bit MSP430 CPU16 at 8 MHz — the clock ceiling sets the instruction throughput for the application loop, and the 16-bit data path matches the register width for efficient 16-bit arithmetic without padding overhead. On-chip memory is 16 KB of FLASH (16K x 8 plus 256 B) and 512 x 8 of RAM — the flash holds the firmware image and constant tables; the RAM budget covers the stack, global variables, and a small data buffer. For a metering or display application that streams data to an LCD, the 512 B RAM is the tightest constraint — the LCD frame buffer and the SPI transmit buffer must share this space. ## Peripheral set and serial interface options Integrated peripherals include a brown-out detect and POR for safe power-up sequencing, a PWM timer for waveform generation, a watchdog timer for runaway-code recovery, and an LCD controller — the LCD controller is the distinguishing feature of the MSP430x4xx family, driving segmented glass displays directly without an external driver chip. Serial connectivity covers SPI and UART/USART — SPI handles high-speed sensor or display data; UART provides a debug console or Modbus RTU link. The 48 general-purpose I/O lines give enough headroom for a keypad matrix, status LEDs, and external memory chip selects alongside the serial buses. ## Supply rail, temperature grade, and package footprint The internal oscillator eliminates the external crystal for the core clock, saving two pins and a PCB trace pair. ## Lifecycle and sourcing posture No pin-compatible second source is documented in the TI portfolio — the MSP430F4351IPZR is a single-source item for the 100-LQFP package with integrated LCD controller.","metaTitle":"MSP430F4351IPZR 16-bit MCU, 8 MHz, 16 KB Flash, 100-LQFP","metaDescription":"Texas Instruments MSP430F4351IPZR, 16-bit MSP430 CPU16 at 8 MHz, 16 KB flash, 512 B RAM, 1.8-3.6 V, -40 to 85°C, 100-LQFP. Active production, order via RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"8MHz","Series":"MSP430x4xx","Package":"Tape & Reel (TR); Cut Tape (CT)","RAM Size":"512 x 8","Core Size":"16-Bit","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, LCD, POR, PWM, WDT","Connectivity":"SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"48","Core Processor":"MSP430 CPU16","Package / Case":"100-LQFP","Product Status":"Active","Data Converters":"-","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"MSP430F4351","Program Memory Size":"16KB (16K x 8 + 256B)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"100-LQFP (14x14)","Voltage - Supply (Vcc/Vdd)":"1.8V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.0280","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/67029cd3d4d0eaea057ab2144cff69d7.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MSP430F4351IPZR/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to the MSP430F4351IPZR in the MSP430x4xx family?","answer":"The MSP430x4xx family includes multiple variants with the same 100-LQFP footprint and LCD controller peripheral. The primary parametric differentiator is flash and RAM size — a sibling with larger memory (e.g., 32 KB or 48 KB flash) is pin-compatible and can serve as a drop-in upgrade if the firmware fits the larger memory map."},{"question":"What compliance documentation does TI provide for the MSP430F4351IPZR?","answer":"Texas Instruments provides RoHS and REACH compliance declarations for the MSP430F4351IPZR. The part is lead-free and the 100-LQFP package is MSL-rated per JEDEC standards. UL and IEC certifications are not listed in the standard product documentation — these are typically provided at the system level, not the component level."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MSP430F4351IPZR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MSP430F4351IPZR 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}}