{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CR16MFS944V7","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"CR16MFS944V7","canonicalUrl":"https://icboms.com/texas-instruments/CR16MFS944V7","factsUrl":"https://icboms.com/api/mcp/products/CR16MFS944V7","rawCanonicalId":null},"summary":{"shortDescription":"CR16MFS9 series, 16-bit Flash MCU, CR16B RISC CPU, 20 MHz, 33 I/O, CAN/I²C/SPI/UART, 8x8b ADC, 4.5 V supply, -40°C to 125°C, surface mount.","salesMarkdown":"## 16-bit MCU with extended temperature range — active and available The CR16MFS944V7 is a 16-bit Flash microcontroller from the CR16MFS9 series, built around National Semiconductor's CR16B RISC CPU core. ## 20 MHz CR16B core — what the clock speed means for your control loop At 20 MHz the CR16B RISC core delivers deterministic instruction throughput for real-time tasks like CAN message handling and PWM updates. The external oscillator requirement means the system clock relies on a crystal or ceramic resonator — no internal RC, so the BOM adds a timing component but gains frequency accuracy across temperature. For a 16-bit machine at this speed, the flash wait-state penalty is minimal; the core can typically execute single-cycle instructions from the 0-wait region at 20 MHz, keeping interrupt latency predictable. ## 4.5 V supply — a fixed 5 V rail part The supply voltage is specified at 4.5 V, which places this MCU on a nominal 5 V power rail. The 4.5 V minimum is tight enough that a 5 V rail with 10% tolerance (4.5 V min) just meets the spec; a 5 V rail with 5% tolerance (4.75 V min) gives margin. If your system runs on 3.3 V or battery voltages, this part requires a boost or separate 5 V regulator. It also suits industrial applications like outdoor telecom base stations, factory-floor motor drives, and downhole instrumentation where the 125°C ceiling is a hard requirement. ## Lifecycle status — active, no LTB risk The active status also means the manufacturer continues to support it with datasheets, application notes, and toolchain updates.","metaTitle":"CR16MFS944V7 16-bit MCU, CR16B core, 20 MHz, 125°C, Active","metaDescription":"CR16MFS944V7 16-bit Flash MCU with CR16B RISC CPU at 20 MHz, 33 I/O, CAN/I²C/SPI/UART, 8x8b ADC, -40°C to 125°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"series":"CR16MFS9","has_mpn":"CR16MFS944","cpu_core":"CR16B","frame_size":"16-Bit","fuse_speed":"20 MHz","connectivity":"ACCESS.Bus (2-Wire/I²C, SMBus), CANbus, Microwire/Plus (SPI), UART/USART","package_type":"Bulk","Number Of I/O":"33","mounting_type":"Surface Mount","product_status":"Active","Data Converters":"A/D 8x8b","Oscillator Type":"External","lifecycle_stage":"eol_hot","peripheral_types":"POR, PWM, WDT","supply_voltage_v":"4.5","Program Memory Type":"FLASH","Operating Temperature High":"-40°C to 125°C (TA)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.93","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e5f00f4dffbaf30699da8ba9c413e99a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CR16MFS944V7/alternatives.json"},"ai":{"faq":[{"question":"What is the CPU core of CR16MFS944V7?","answer":"The CR16MFS944V7 uses the CR16B RISC CPU core, a 16-bit architecture from National Semiconductor."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/CR16MFS944V7","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/CR16MFS944V7 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}}