{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MSP430P315SIDLR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MSP430P315SIDLR","canonicalUrl":"https://icboms.com/texas-instruments/MSP430P315SIDLR","factsUrl":"https://icboms.com/api/mcp/products/MSP430P315SIDLR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MSP430x3xx series, MSP430P315SIDLR, 16-Bit microcontroller, 8MHz, 16KB (16K x 8) OTP, 512 x 8 RAM, 14 I/O, 48-BSSOP, -40°C~85°C.","salesMarkdown":"## 16-bit OTP MCU — what the specs mean for a BOM line It carries 16 KB of OTP (one-time programmable) program memory and 512 x 8 bytes of RAM, with 14 general-purpose I/O lines, an internal oscillator, a slope A/D converter, and integrated LCD drive, POR, and WDT peripherals. This part was designed for cost-sensitive embedded control applications where the firmware is finalized before production — the OTP memory means no field updates are possible, so the code must be locked down at the factory. ## OTP memory: no field updates possible The 16 KB program memory is OTP — one-time programmable. This is the single most important design constraint. Once the device is programmed, the firmware cannot be changed, patched, or updated. That makes it a fit only for applications where the software is fully verified and frozen before production, such as sealed sensor nodes, fixed-function controllers, or disposable medical electronics. The 512 x 8 RAM is tight — enough for small buffers and a modest call stack, but not for data logging or large frame buffers. Designs that need field-reprogrammability should look at the flash-based MSP430F315 variant instead. That means new designs should not start with this part.","metaTitle":"TI MSP430P315SIDLR 16-bit MCU, 8 MHz, 16 KB OTP, 48-SSOP","metaDescription":"Texas Instruments MSP430P315SIDLR 16-bit MCU, 8 MHz core, 16 KB OTP program memory, 512 x 8 RAM, 48-SSOP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"8MHz","Series":"MSP430x3xx","Package":"Tape & Reel (TR)","RAM Size":"512 x 8","Core Size":"16-Bit","EEPROM Size":"-","Peripherals":"LCD, POR, WDT","Connectivity":"UART/USART","Mounting Type":"Surface Mount","Number of I/O":"14","Core Processor":"MSP430 CPU16","Package / Case":"48-BSSOP (0.295\\\", 7.50mm Width)","Product Status":"Obsolete","Data Converters":"Slope A/D","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"MSP430P315","Program Memory Size":"16KB (16K x 8)","Program Memory Type":"OTP","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"48-SSOP","Voltage - Supply (Vcc/Vdd)":"2.7V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.1100","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/9add793b6a3406799cc40f52c7bf3d70.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MSP430P315SIDLR/alternatives.json"},"ai":{"faq":[{"question":"Is MSP430P315SIDLR obsolete?","answer":"Yes, Texas Instruments lists the MSP430P315SIDLR as obsolete. It is no longer manufactured and must be sourced through surplus or broker channels."},{"question":"What is the replacement for MSP430P315SIDLR?","answer":"The closest functional sibling in the MSP430x3xx family is the MSP430F315, which uses flash memory instead of OTP and allows field reprogramming. Verify pin compatibility against the respective datasheets before substituting."},{"question":"Can I use MSP430F315 as a substitute for MSP430P315SIDLR?","answer":"The MSP430F315 is the flash-based counterpart in the same MSP430x3xx family and is the closest functional alternative. However, pin compatibility is not confirmed by the evidence — you must compare the datasheet pinouts and electrical specifications before substituting."},{"question":"What is MSP430P315SIDLR's listed speed?","answer":"The MSP430P315SIDLR is rated for an 8 MHz core speed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MSP430P315SIDLR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MSP430P315SIDLR 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}}