{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LPC2939FBD208551","brand":"NXP USA Inc.","brandSlug":"nxp-usa-inc","productSlug":"LPC2939FBD208551","canonicalUrl":"https://icboms.com/nxp-usa-inc/LPC2939FBD208551","factsUrl":"https://icboms.com/api/mcp/products/LPC2939FBD208551","rawCanonicalId":null},"summary":{"shortDescription":"NXP LPC2900 series ARM9® MCU, LPC2939FBD208551, 16/32-bit core at 125 MHz, 768 KB Flash, 56 KB RAM, 152 I/O, dual CAN, USB OTG, 1.71–3.6 V supply, -40 to 85 °C, 208-LQFP (28×28 mm).","salesMarkdown":"## ARM9 MCU with 125 MHz core and dual CAN The NXP LPC2939FBD208551 is a 16/32-bit ARM9-based microcontroller from the LPC2900 series, clocked at 125 MHz. The peripheral set includes dual CANbus, USB OTG, EBI/EMI, I²C, LINbus, SPI, and multiple UART/USART interfaces — enough connectivity for an industrial gateway or multi-protocol automation controller. A 24-channel 10-bit ADC handles analog sensing without an external converter. Supply range is 1.71 V to 3.6 V, and the device operates across -40 to 85 °C, making it suitable for factory-floor and outdoor telecom enclosures. At 125 MHz, the ARM9 core delivers enough processing headroom for real-time control loops, protocol stack handling (CAN, USB), and data-logging without a separate co-processor. The 768 KB Flash holds a full firmware image with room for field-update staging; the 56 KB RAM supports moderate-sized buffers for Ethernet or USB packets. For applications that need more memory, the EBI/EMI interface allows expansion with external SRAM or Flash. Housed in a 208-LQFP (28×28 mm) surface-mount package. The 152 I/O lines require a multi-layer board for routing.","metaTitle":"NXP LPC2939FBD208551 ARM9 MCU, 125 MHz, 768 KB Flash","metaDescription":"NXP LPC2939FBD208551 ARM9 MCU with 125 MHz core, 768 KB Flash, 56 KB RAM, 152 I/O, dual CAN, USB OTG, -40 to 85°C. Active production. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Speed":"125MHz","title":"LPC2939FBD208551","Series":"LPC2900","Package":"Bulk","RAM Size":"56K x 8","Core Size":"16/32-Bit","EEPROM Size":"16K x 8","Peripherals":"DMA, POR, PWM, WDT","Connectivity":"CANbus, EBI/EMI, I²C, LINbus, SPI, UART/USART, USB, USB OTG","Mounting Type":"Surface Mount","Number of I/O":"152","Core Processor":"ARM9®","Package / Case":"208-LQFP","Data Converters":"A/D 24x10b","Oscillator Type":"Internal","Base Product Number":"LPC2939","Program Memory Size":"768KB (768K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"208-LQFP (28x28)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/6b54fb1647ff47c3b88f0f021960a7b3.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LPC2939FBD208551/alternatives.json"},"ai":{"faq":[{"question":"What is LPC2939FBD208551's listed speed?","answer":"The core runs at 125 MHz, based on the ARM9 architecture."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/nxp-usa-inc/LPC2939FBD208551","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/nxp-usa-inc/LPC2939FBD208551 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-11T17:20:20.394Z","lastPublished":"2026-07-11T17:20:20.394Z","indexable":true}}