{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MKM14Z64ACHH5","brand":"NXP Semiconductors","brandSlug":"nxp","productSlug":"MKM14Z64ACHH5","canonicalUrl":"https://icboms.com/nxp/MKM14Z64ACHH5","factsUrl":"https://icboms.com/api/mcp/products/MKM14Z64ACHH5","rawCanonicalId":null},"summary":{"shortDescription":"NXP Semiconductors Kinetis KM series ARM Cortex-M0+ MCU, MKM14Z64ACHH5, 50 MHz, 64 KB Flash, 16K x 8 RAM, 44-MAPLGA (5x5 mm), -40 to 85 °C.","salesMarkdown":"## Active production — still a current NXP metrology MCU The MKM14Z64ACHH5: ROHS3 compliant — no exemption issues for EU-market equipment. The part carries NXP's standard warranty and traceability through authorized supply. ## Cortex-M0+ at 50 MHz — built for energy measurement The ARM Cortex-M0+ core runs at 50 MHz, which is the computational ceiling for the on-chip metrology firmware. This is not a general-purpose MCU speed race — the KM series is optimized for the power-line cycle calculations that a 50/60 Hz energy measurement algorithm demands. The flash is single-cycle at 50 MHz for zero-wait-state code execution on most instructions. The dual ADC architecture is the standout feature for metrology: five 16-bit SAR channels for voltage/current waveform capture and four 24-bit sigma-delta channels for precision energy accumulation. The 24-bit converters handle the wide dynamic range of a residential or commercial meter — from standby current to full-load — without gain switching. ## Package, supply, and temperature — board-fit constraints The package sits flush with the board; no seated height to account for in enclosure clearance. The wide range simplifies the power tree — no secondary LDO needed for the core. ## Peripheral set and I/O — what connects to the bus 20 general-purpose I/O pins are available in the 44-pin package. On-chip peripherals include DMA and a watchdog timer. The DMA engine can move ADC conversion results directly to RAM without CPU intervention, freeing the Cortex-M0+ for communication and protocol handling. The WDT provides a safety net for unattended metering applications that must self-recover from firmware hangs.","metaTitle":"NXP MKM14Z64ACHH5 Kinetis KM MCU, 50 MHz, 64 KB Flash","metaDescription":"NXP MKM14Z64ACHH5 Kinetis KM ARM Cortex-M0+ MCU, 50 MHz, 64 KB flash, 16 KB RAM, 24-bit sigma-delta ADC. Active production, ROHS3. Request quote.","metaKeywords":null},"attributes":{"series":"Kinetis KM","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Speed":"50MHz","Series":"Kinetis KM","Package":"Tray","RAM Size":"16K x 8","Core Size":"32-Bit Single-Core","Peripherals":"DMA, WDT","Connectivity":"I²C, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"20","Core Processor":"ARM® Cortex®-M0+","Package / Case":"44-VFLGA Exposed Pad","Data Converters":"A/D 5x16b, 4x24b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Program Memory Size":"64KB (64K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"44-MAPLGA (5x5)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.76","stockQuantity":24,"priceTiers":[{"qty":1,"price":"$6.76000","currency":"USD"},{"qty":10,"price":"$5.27600","currency":"USD"},{"qty":80,"price":"$4.32263","currency":"USD"},{"qty":490,"price":"$4.23178","currency":"USD"},{"qty":980,"price":"$3.56896","currency":"USD"},{"qty":2450,"price":"$3.39053","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/6abf08808d9d5477b636b8e23c2d9606.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/nxp/MKM14Z64ACHH5","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/nxp/MKM14Z64ACHH5 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}