{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LPC43S50FET256551","brand":"NXP USA Inc.","brandSlug":"nxp-usa-inc","productSlug":"LPC43S50FET256551","canonicalUrl":"https://icboms.com/nxp-usa-inc/LPC43S50FET256551","factsUrl":"https://icboms.com/api/mcp/products/LPC43S50FET256551","rawCanonicalId":null},"summary":{"shortDescription":"NXP LPC43xx series, LPC43S50FET256551, 32-bit ARM Cortex-M4/M0 dual-core MCU, 204 MHz, 264K x 8 SRAM, 164 I/O, 2.2 V–3.6 V supply, ROMless, 256-LBGA (17x17 mm), -40°C to 85°C.","salesMarkdown":"## Dual-core MCU for real-time control and connectivity The M4 core runs at 204 MHz and handles DSP, motor-control loops, and protocol stacks; the M0 core offloads housekeeping tasks such as sensor polling, communication framing, or system monitoring. This asymmetric architecture lets a single chip replace a two-chip solution in applications like industrial drives, CAN/Ethernet gateways, and HMI front-ends with LCD output. The device carries 264K x 8 of on-chip SRAM and is ROMless, meaning all program code must reside in external memory — parallel NOR/NAND Flash via the EBI/EMI interface, or serial SPI Flash booted through the SSP/SPI port. The 256-LBGA package (17x17 mm) demands a controlled-impedance PCB stack-up and X-ray inspection during assembly — not a hand-solderable footprint, but appropriate for the I/O count and signal integrity needed at 204 MHz. The Cortex-M4 core at 204 MHz executes a field-oriented-control algorithm for a dual-motor drive while the M0 handles Modbus RTU polling. ## ROMless — plan your external memory The LPC43S50FET256551 has no internal Flash or OTP, so designs must include external non-volatile memory for code storage. The EBI/EMI interface supports parallel NOR Flash.","metaTitle":"NXP LPC43S50FET256551 ARM Cortex-M4/M0 MCU, 204 MHz, 264 KB SRAM","metaDescription":"NXP LPC43S50FET256551 dual-core 32-bit MCU, 204 MHz, 264K x 8 SRAM, 164 I/O, ROMless, -40°C to 85°C, 256-LBGA. Active lifecycle. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Speed":"204MHz","title":"LPC43S50FET256551","Series":"LPC43xx","Package":"Bulk","RAM Size":"264K x 8","Core Size":"32-Bit Dual-Core","Peripherals":"Brown-out Detect/Reset, DMA, I²S, LCD, Motor Control PWM, POR, PWM, WDT","Connectivity":"CANbus, EBI/EMI, Ethernet, I²C, IrDA, Microwire, SD, SPI, SSI, SSP, UART/USART, USB, USB OTG","Mounting Type":"Surface Mount","Number of I/O":"164","Core Processor":"ARM® Cortex®-M4/M0","Package / Case":"256-LBGA","Data Converters":"A/D 8x10b; D/A 1x10b","Oscillator Type":"Internal","Base Product Number":"LPC43S50","Program Memory Type":"ROMless","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"256-LBGA (17x17)","Voltage - Supply (Vcc/Vdd)":"2.2V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/359ca7154c66eb3ca1cc4c1046f4ef96.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LPC43S50FET256551/alternatives.json"},"ai":{"faq":[{"question":"Does LPC43S50FET256551 have internal flash memory?","answer":"No. The LPC43S50FET256551 is ROMless — it has no internal Flash or OTP. All program code must be stored in external memory, typically a serial SPI Flash or parallel NOR Flash connected via the EBI/EMI or SSP/SPI interface."},{"question":"What is the operating temperature range of LPC43S50FET256551?","answer":"The LPC43S50FET256551 is rated for -40°C to 85°C, which covers industrial, outdoor telecom, and automotive cabin environments."},{"question":"What is LPC43S50FET256551's listed speed?","answer":"The Cortex-M4 core runs at 204 MHz, delivering approximately 255 DMIPS for real-time control and DSP workloads."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/nxp-usa-inc/LPC43S50FET256551","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/LPC43S50FET256551 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}}