{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MIMXRT1021CAG4A","brand":"NXP USA Inc.","brandSlug":"nxp-usa-inc","productSlug":"MIMXRT1021CAG4A","canonicalUrl":"https://icboms.com/nxp-usa-inc/MIMXRT1021CAG4A","factsUrl":"https://icboms.com/api/mcp/products/MIMXRT1021CAG4A","rawCanonicalId":null},"summary":{"shortDescription":"NXP i.MX RT1020 series, MIMXRT1021CAG4A, 32-bit ARM Cortex-M7 MCU at 400MHz, external program memory, 256K x 8 RAM, 96 I/O, 144-LQFP (20x20mm), -40°C to 105°C Tj.","salesMarkdown":"The NXP MIMXRT1021CAG4A is a 32-bit single-core ARM Cortex-M7 MCU running at 400 MHz, part of the i.MX RT1020 series. Program memory is external, so the BOM must include a separate Flash or PSRAM device; the 256K x 8 on-chip RAM handles data and tight loops. The 96 I/O and peripheral set — CANbus, Ethernet, USB OTG, and multiple serial interfaces — suit it as a real-time control and communication hub in industrial drives, PLCs, and IoT edge gateways. No forced cooling required at the top end, but thermal design should keep Tj under the limit during sustained 400 MHz operation. ## Key peripherals and connectivity The 19-channel 12-bit ADC provides enough analog front-end for multi-sensor feedback in motor control or power monitoring. Connectivity includes CANbus for vehicle or factory networks, Ethernet for backbone links, USB OTG for device/host switching, plus SPI, I²C, UART, and SDIO for local peripherals. The EBI/EMI interface can connect parallel displays or external memory directly. The MIMXRT1021CAG4A has an active lifecycle status.","metaTitle":"NXP MIMXRT1021CAG4A i.MX RT1020 MCU, ARM Cortex-M7 400MHz, 144-LQFP","metaDescription":"NXP MIMXRT1021CAG4A, i.MX RT1020 series 32-bit ARM Cortex-M7 MCU at 400MHz. 256K x 8 RAM, external program memory, 96 I/O, -40°C to 105°C Tj, 144-LQFP. Active production, available","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Speed":"400MHz","title":"MIMXRT1021CAG4A","Series":"RT1020","Package":"Tray","RAM Size":"256K x 8","Core Size":"32-Bit Single-Core","Peripherals":"Brown-out Detect/Reset, DMA, POR, PWM, WDT","Connectivity":"CANbus, EBI/EMI, Ethernet, I²C, MMC/SD/SDIO, SAI, SPDIF, SPI, UART/USART, USB OTG","Mounting Type":"Surface Mount","Number of I/O":"96","Core Processor":"ARM® Cortex®-M7","Package / Case":"144-LQFP","Data Converters":"A/D 19x12b","Oscillator Type":"External, Internal","Base Product Number":"MIMXRT1021","Program Memory Type":"External Program Memory","Operating Temperature":"-40°C ~ 105°C (TJ)","Supplier Device Package":"144-LQFP (20x20)","Voltage - Supply (Vcc/Vdd)":"3V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$10.0315","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3e550eb3810db932e54dce503185e2f9.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MIMXRT1021CAG4A/alternatives.json"},"ai":{"faq":[{"question":"What is the core speed of MIMXRT1021CAG4A?","answer":"The ARM Cortex-M7 core runs at 400 MHz, which is the headline performance rating for this MCU. That clock rate drives the real-time control loop throughput for motor drives, PLCs, and communication gateways."},{"question":"Does MIMXRT1021CAG4A have on-chip Flash?","answer":"No, program memory is external. The BOM must include a separate Flash or PSRAM device connected via the EBI/EMI or FlexSPI interface. The 256K x 8 on-chip RAM is available for data and stack."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/nxp-usa-inc/MIMXRT1021CAG4A","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/MIMXRT1021CAG4A 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}}