{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MKL81Z128CBH7R","brand":"NXP USA Inc.","brandSlug":"nxp-usa-inc","productSlug":"MKL81Z128CBH7R","canonicalUrl":"https://icboms.com/nxp-usa-inc/MKL81Z128CBH7R","factsUrl":"https://icboms.com/api/mcp/products/MKL81Z128CBH7R","rawCanonicalId":null},"summary":{"shortDescription":"NXP Kinetis KL8 series 32-bit ARM Cortex-M0+ MCU, MKL81Z128CBH7R, 72MHz, 128KB Flash, 96KB RAM, USB OTG, 41 I/O, 1.71-3.6V, -40 to 105°C, 64-WLCSP (3.48x3.38mm), ROHS3.","salesMarkdown":"The NXP MKL81Z128CBH7R is a Kinetis KL8 series 32-bit ARM Cortex-M0+ MCU clocked at 72 MHz, with 128 KB Flash and 96 KB RAM. That RAM-to-Flash ratio is generous for this core class — enough headroom for USB OTG buffer pools or a small audio I²S stream without external SRAM. The 64-WLCSP package (3.48×3.38 mm) saves real estate on a dense mixed-signal board, but it's a wafer-level chip-scale part: plan for controlled reflow, X-ray inspection, and underfill if the assembly sees shock or vibration. Forty-one I/O in that footprint means most pads are dual-function; the pinout needs careful review before the layout freeze. Rated -40 to 105 °C. The internal oscillator trims out the external crystal for many UART and I²C applications, but USB OTG still wants a precision clock source for bit-level timing. ## Peripherals and connectivity — what's on the bus The 11-channel 16-bit ADC and the 12-bit DAC handle analog front-end tasks; the 6-bit DAC is a smaller auxiliary channel. DMA, I²S, POR, LVD, PWM, and WDT round out the peripheral set. No CAN or Ethernet on this die — if you need those, step up to a Kinetis K or L series with the appropriate peripheral module.","metaTitle":"NXP MKL81Z128CBH7R Kinetis KL8 MCU, 72MHz, 128KB Flash, 64-WLCSP","metaDescription":"NXP Kinetis KL8 32-bit ARM Cortex-M0+ MCU. 72MHz core, 128KB Flash, 96KB RAM, USB OTG, 41 I/O, -40 to 105°C, 64-WLCSP. Active production, ROHS3. Sourced to order.","metaKeywords":null},"attributes":{"series":"Kinetis KL8","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Speed":"72MHz","title":"MKL81Z128CBH7R","Series":"Kinetis KL8","Package":"Tape & Reel (TR) Cut Tape (CT)","RAM Size":"96K x 8","Core Size":"32-Bit Single-Core","Peripherals":"DMA, I²S, LVD, POR, PWM, WDT","description":"IC MCU 32BIT 128KB FLASH 64WLCSP","Connectivity":"I²C, SPI, UART/USART, USB OTG","Mounting Type":"Surface Mount","Number of I/O":"41","Core Processor":"ARM® Cortex®-M0+","Package / Case":"64-XFBGA, WLCSP","Data Converters":"A/D 11x16b; D/A 1x6b, 1x12b","Oscillator Type":"Internal","Base Product Number":"MKL81Z128","Program Memory Size":"128KB (128K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 105°C (TA)","Supplier Device Package":"64-WLCSP (3.48x3.38)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$13.0500","priceTiers":[{"qty":1,"price":"$13.05000","currency":"USD"},{"qty":10,"price":"$10.25400","currency":"USD"},{"qty":100,"price":"$8.48960","currency":"USD"},{"qty":1000,"price":"$7.40455","currency":"USD"},{"qty":5000,"price":"$6.85607","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/381a633c3afb77619164840006a04981.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MKL81Z128CBH7R/alternatives.json"},"ai":{"faq":[{"question":"What is MKL81Z128CBH7R's listed speed?","answer":"The core is rated at 72 MHz, which is the maximum clock for this ARM Cortex-M0+ implementation in the Kinetis KL8 series."},{"question":"What compliance documentation does this part carry?","answer":"The MKL81Z128CBH7R is ROHS3 compliant per the NXP product status. Standard NXP compliance documentation (RoHS, REACH, material declaration) is available through the manufacturer's document portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/nxp-usa-inc/MKL81Z128CBH7R","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/MKL81Z128CBH7R when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T10:39:33.080Z","lastPublished":"2026-07-16T10:39:33.080Z","indexable":true}}