{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MC68332GCAG16","brand":"NXP Semiconductors","brandSlug":"nxp","productSlug":"MC68332GCAG16","canonicalUrl":"https://icboms.com/nxp/MC68332GCAG16","factsUrl":"https://icboms.com/api/mcp/products/MC68332GCAG16","rawCanonicalId":null},"summary":{"shortDescription":"NXP M683xx MC68332GCAG16, 32-Bit Single-Core MCU, CPU32 core at 16MHz, ROMless, 2K x 8 RAM, 4.5V–5.5V supply, -40°C to 85°C, 144-LQFP (20x20 mm).","salesMarkdown":"## What the MC68332GCAG16 is and where it fits The NXP MC68332GCAG16 is a 32-bit single-core microcontroller built around the CPU32 core, clocked at 16 MHz. It is a ROMless device — all program code must reside in external memory accessed through the external bus interface (EBI/EMI). On-chip RAM is limited to 2K x 8, so data buffering or working memory also typically requires external SRAM or careful register usage. The part is supplied from 4.5 V to 5.5 V and rated over the industrial temperature range of -40°C to 85°C, making it suitable for factory automation, motor drives, outdoor telecom, and other environments where extended temperature is required but mil-spec qualification is not. The 144-LQFP package (20x20 mm body) is a surface-mount footprint that demands a standard reflow profile; no socket option is offered. ## Peripheral set and connectivity On-chip peripherals include a power-on reset (POR), a pulse-width modulator (PWM), and a watchdog timer (WDT). ## ROMless architecture — what it means for the BOM Because the MC68332GCAG16 has no internal program memory (ROMless), every design must budget for an external non-volatile memory device — typically a parallel NOR Flash or an OTP EPROM — connected via the EBI. This adds PCB area, a second supply chain line, and a programming step during board assembly. It also means firmware updates require the external memory to be reprogrammable or socketed. For designs where code is fixed at the factory, a one-time-programmable EPROM is an option; for field-updatable systems, a Flash device is the practical choice. The small 2K x 8 on-chip RAM handles stack and small data structures; larger data buffers will need external SRAM. ## Lifecycle and sourcing reality The MC68332GCAG16 carries an Active lifecycle status per the manufacturer, and is listed as ROHS3 compliant. No official second-source or pin-compatible alternate is listed in the available records, so dual-sourcing is not directly supported — the BOM should be qualified around this single MPN.","metaTitle":"MC68332GCAG16 MCU 32-bit CPU32 16MHz 144-LQFP","metaDescription":"MC68332GCAG16 32-bit single-core MCU, 16MHz CPU32, ROMless, 2K x 8 RAM, -40°C to 85°C, 144-LQFP. Active lifecycle.","metaKeywords":null},"attributes":{"series":"M683xx","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Speed":"16MHz","Series":"M683xx","Package":"Bulk","RAM Size":"2K x 8","Core Size":"32-Bit Single-Core","Peripherals":"POR, PWM, WDT","Connectivity":"EBI/EMI, SCI, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"15","Core Processor":"CPU32","Package / Case":"144-LQFP","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Program Memory Type":"ROMless","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"144-LQFP (20x20)","Voltage - Supply (Vcc/Vdd)":"4.5V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$42.63","stockQuantity":0,"priceTiers":[{"qty":8,"price":"$42.63000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/973baf102d4a74a87c23dd64d68fb20c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does MC68332GCAG16 have internal memory or only ROMless?","answer":"The MC68332GCAG16 is ROMless — it has no internal program memory. It includes 2K x 8 of on-chip RAM for data, but all code must be stored in an external memory device connected via the EBI/EMI."},{"question":"What interfaces does MC68332GCAG16 support?","answer":"The MC68332GCAG16 supports an external bus / external memory interface (EBI/EMI), a serial communications interface (SCI), an SPI port, and UART/USART channels. It also provides 15 general-purpose I/O lines."},{"question":"What is MC68332GCAG16's listed speed?","answer":"The MC68332GCAG16 is rated for a 16 MHz core clock on the CPU32 processor."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/nxp/MC68332GCAG16","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/nxp/MC68332GCAG16 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}