{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MSP430FR5721IDA","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MSP430FR5721IDA","canonicalUrl":"https://icboms.com/texas-instruments/MSP430FR5721IDA","factsUrl":"https://icboms.com/api/mcp/products/MSP430FR5721IDA","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MSP430™ FRAM series, MSP430FR5721IDA, 16-Bit MCU, 8MHz, 4KB (4K x 8) FRAM, 1K x 8 SRAM, 38-TSSOP, -40°C ~ 85°C.","salesMarkdown":"## FRAM-based 16-bit MCU for low-power control This makes it a strong fit for applications that log data, update firmware in the field, or need to retain state across power cycles without an external EEPROM. ## FRAM vs Flash — what it changes for the BOM This simplifies the memory map and reduces the component count on the board. The trade-off is that FRAM density typically tops out lower than Flash — the MSP430FR5721IDA offers 4 KB, which constrains the firmware footprint compared to a Flash MCU with 16 KB or 32 KB. For applications that fit within that limit, the FRAM approach saves a serial memory device and its associated PCB area. ## Package and thermal considerations for layout The device is supplied in a 38-pin TSSOP package (6.10 mm body width) with a 0.5 mm pitch. It is a surface-mount part intended for reflow soldering. The package does not have an exposed thermal pad, so heat dissipation relies on the leadframe and PCB copper. Decoupling with a 0.1 µF ceramic capacitor per supply pin pair is sufficient for this speed grade.","metaTitle":"MSP430FR5721IDA 16-bit MCU, 8 MHz, 4 KB FRAM, 38-TSSOP","metaDescription":"Texas Instruments MSP430FR5721IDA 16-bit MCU with 8 MHz speed, 4 KB FRAM, 1 KB SRAM, 30 I/O, -40°C to 85°C.","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":"MSP430™ FRAM","Package":"Tube","RAM Size":"1K x 8","Core Size":"16-Bit","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"I²C, IrDA, LINbus, SCI, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"30","Core Processor":"MSP430 CPUXV2","Package / Case":"38-TSSOP (0.240\\\", 6.10mm Width)","Product Status":"Active","Data Converters":"A/D 14x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"MSP430FR5721","Program Memory Size":"4KB (4K x 8)","Program Memory Type":"FRAM","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"38-TSSOP","Voltage - Supply (Vcc/Vdd)":"2V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.9648","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/6d22cd36ef84fcd0b0b17f590749a972.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MSP430FR5721IDA/alternatives.json"},"ai":{"faq":[{"question":"Can MSP430FR5721IDA be replaced with MSP430FR5730?","answer":"The MSP430FR5730 is a higher-density sibling in the same FRAM family, offering more memory and a different peripheral set. It is not a direct pin-compatible replacement — the package and pinout differ. For a drop-in alternative within the same package, verify the specific MSP430FR572x variant that matches the 38-TSSOP footprint."},{"question":"How many I/O pins does MSP430FR5721IDA have?","answer":"The device provides 30 general-purpose I/O pins."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MSP430FR5721IDA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MSP430FR5721IDA when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}