{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MC9S08AC32CPUE","brand":"NXP Semiconductors","brandSlug":"nxp","productSlug":"MC9S08AC32CPUE","canonicalUrl":"https://icboms.com/nxp/MC9S08AC32CPUE","factsUrl":"https://icboms.com/api/mcp/products/MC9S08AC32CPUE","rawCanonicalId":null},"summary":{"shortDescription":"NXP S08 series 8-bit MCU, MC9S08AC32CPUE, 40 MHz core, 32 KB Flash, 2K x 8 RAM, 54 I/O, I²C/SCI/SPI, 16-ch 10-bit ADC, 2.7 V to 5.5 V, -40°C to 85°C, 64-LQFP.","salesMarkdown":"## 40 MHz S08 core — what it means for the control loop The NXP MC9S08AC32CPUE is an 8-bit microcontroller from the S08 family, built around a 40 MHz S08 core with 32 KB of on-chip Flash program memory and 2K x 8 of RAM. It runs from a 2.7 V to 5.5 V supply, making it straightforward to power from an unregulated 5 V rail or a 3.3 V LDO. The 40 MHz clock gives it enough throughput for real-time control loops — think motor commutation timing, sensor polling at a few kilohertz, or driving a PWM output with sub-microsecond resolution — without needing a 32-bit core. The internal oscillator keeps the BOM simple; no external crystal is needed for most applications. ## Industrial temperature range and peripheral set Rated for -40°C to 85°C operation, this MCU is specified for outdoor telecom cabinets, factory-floor controllers, and engine-adjacent electronics where the ambient temperature swings. The 54 general-purpose I/O lines give plenty of headroom for parallel interfaces, keypad matrices, or driving indicator LEDs. On-chip peripherals include a 16-channel 10-bit ADC, plus LVD, POR, PWM, and WDT blocks that reduce external supervisor and reset ICs. Connectivity covers I²C, SCI (UART), and SPI — enough to talk to common sensors, serial EEPROMs, and display modules without glue logic. ## 64-LQFP package — layout and sourcing notes Housed in a 64-LQFP (10x10 mm body) with 0.5 mm pitch, the MC9S08AC32CPUE is a surface-mount part that routes easily on a two-layer board if the decoupling caps are placed close to the supply pins. The supplier device package is 64-LQFP (10x10) — no exposed pad, so thermal dissipation goes through the leads; keep the copper pour under the package solid for a bit of heat spreading. ## Active lifecycle — no LTB risk for new designs NXP lists the MC9S08AC32CPUE as Active with ROHS3 compliance. There is no last-time-buy notice or NRND flag on this part, so it is safe to qualify for a new production BOM. The S08 family has been in the field for years, and the toolchain (CodeWarrior, third-party programmers) is mature. If you need a second-source hedge, NXP's own S08 portfolio offers pin-compatible density variants — the MC9S08AC32CFUE (same package, 32 KB Flash, different temp grade) or the MC9S08AC16CFUE (16 KB Flash) — but verify the exact memory and peripheral match against your firmware image.","metaTitle":"NXP MC9S08AC32CPUE 8-bit MCU, 40 MHz, 32 KB Flash, 64-LQFP","metaDescription":"NXP MC9S08AC32CPUE 8-bit S08 MCU: 40 MHz core, 32 KB Flash, 2K x 8 RAM, industrial temp -40°C to 85°C, 2.7 V to 5.5 V supply. Active lifecycle.","metaKeywords":null},"attributes":{"series":"S08","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Speed":"40MHz","Series":"S08","Package":"Tray","RAM Size":"2K x 8","Core Size":"8-Bit","Peripherals":"LVD, POR, PWM, WDT","Connectivity":"I²C, SCI, SPI","Mounting Type":"Surface Mount","Number of I/O":"54","Core Processor":"S08","Package / Case":"64-LQFP","Data Converters":"A/D 16x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Program Memory Size":"32KB (32K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"64-LQFP (10x10)","Voltage - Supply (Vcc/Vdd)":"2.7V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$9.63","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$9.63000","currency":"USD"},{"qty":10,"price":"$7.56500","currency":"USD"},{"qty":80,"price":"$6.26313","currency":"USD"},{"qty":1600,"price":"$5.46270","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/0012468c749aad451c29523a137ae8d5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I find the MC9S08AC32CPUE datasheet PDF?","answer":"The datasheet for the MC9S08AC32CPUE is available from NXP's website. Search for document number MC9S08AC32 on the NXP documentation portal."},{"question":"Is the MC9S08AC32CPUE suitable for motor control?","answer":"Yes, the 40 MHz S08 core, 16-channel 10-bit ADC, and PWM peripheral make it capable of sensorless BLDC or brushed DC motor control for applications like fans, pumps, and small actuators. The 32 KB Flash is enough for a field-oriented control (FOC) library if code is optimized."},{"question":"How do I program the MC9S08AC32CPUE?","answer":"Programming is done via the background debug module (BDM) interface using NXP's USBDM, PEmicro, or third-party programmers. The internal oscillator allows programming without an external clock. CodeWarrior for MCU (now part of NXP's MCUXpresso suite) supports the S08 family."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/nxp/MC9S08AC32CPUE","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/nxp/MC9S08AC32CPUE 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}}