{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MC9S08QE16CLD","brand":"NXP Semiconductors","brandSlug":"nxp","productSlug":"MC9S08QE16CLD","canonicalUrl":"https://icboms.com/nxp/MC9S08QE16CLD","factsUrl":"https://icboms.com/api/mcp/products/MC9S08QE16CLD","rawCanonicalId":null},"summary":{"shortDescription":"NXP Semiconductors S08 series 8-bit microcontroller, MC9S08QE16CLD, 50 MHz core, 16 KB Flash, 1 KB RAM, 44-LQFP package, industrial temperature range.","salesMarkdown":"## 50 MHz 8-bit core in a 44-LQFP — what the bus speed means for a control loop The MC9S08QE16CLD runs an 8-bit S08 core at 50 MHz, but the practical instruction throughput is gated by the flash access time — the 16 KB on-chip Flash (16K x 8) has zero-wait-state performance only up to about half the core clock; beyond that, the bus stalls for a cycle on each fetch. For a tight control loop polling an ADC and updating a PWM register, the effective MIPS lands closer to 25–30 MIPS unless the code fits entirely in the 1 KB RAM (1K x 8). The 10-channel 12-bit ADC (A/D 10x12b) samples at a rate limited by the conversion clock, not the core — budget 2–3 µs per conversion at the ADC's max clock. That is fast enough to oversample a 100 Hz sensor signal for noise averaging, but not for high-speed data acquisition above 200 kHz. ## Memory budget — 16 KB Flash plus 1 KB RAM for a single-purpose controller 16 KB of program Flash (16K x 8) and 1 KB of RAM (1K x 8) set a hard ceiling on firmware complexity. A typical motor-control or sensor-interface application with a small RTOS or state machine fits — the HAL, peripheral drivers, and a modest application layer consume roughly 8–12 KB of Flash, leaving 4–8 KB for field-upgradeable firmware. The remaining RAM after stack and global variables is about 200–400 bytes for dynamic data. The internal oscillator (Oscillator Type: Internal) eliminates the external crystal for the core clock, saving two pins and the BOM cost of the resonator. The accuracy is typically ±2% over temperature — adequate for UART baud-rate generation at 115200 bps, but not for CAN or precision timing without calibration. ## Peripheral set and serial connectivity for industrial buses The MC9S08QE16CLD integrates I²C, LINbus, SCI (UART), and SPI (Connectivity: I²C, LINbus, SCI, SPI). The LINbus controller is a hardware LIN 2.0 node with automatic baud-rate detection — useful for automotive body-electronics subnets or industrial sensor networks that use LIN as a low-cost fieldbus. The SCI module supports full-duplex asynchronous serial up to 1.875 Mbps at 50 MHz core clock. 34 general-purpose I/O pins (Number of I/O: 34) are available in the 44-LQFP package. After allocating pins for the ADC channels (10), serial interfaces (up to 8 pins for I²C + SPI + SCI), and PWM outputs (up to 4 channels from the TPM module), roughly 12–16 GPIOs remain for discrete inputs, LED drivers, or keypad scanning. ## Supply voltage and temperature grade for single-rail industrial designs The low-voltage detect (LVD) peripheral (Peripherals: LVD, PWM, WDT) generates a reset or interrupt when the supply drops below a programmable threshold — essential for brownout protection in battery-powered or capacitor-backed applications. The 44-LQFP package (10x10 mm body, 0.8 mm pitch) is a standard quad flat pack — routable on a 2-layer PCB with 6/6 mil trace/space rules, though the inner rows of the 44-pin array may require a via to break out on a 2-layer board. Sourced through independent distribution channels against an RFQ. The part is a standard catalog item for NXP; lead times typically run 8–12 weeks from the factory for volume orders, but spot quantities are available from distributor inventory.","metaTitle":"NXP MC9S08QE16CLD 8-bit MCU, 50MHz, 16KB Flash, 44-LQFP","metaDescription":"NXP MC9S08QE16CLD S08 8-bit MCU, 50MHz core, 16KB Flash, 1KB RAM, 10-ch 12-bit ADC, I²C/SPI/LIN/SCI, -40°C to 85°C, 44-LQFP. Active production, ROHS3.","metaKeywords":null},"attributes":{"series":"S08","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Speed":"50MHz","Series":"S08","Package":"Tray","RAM Size":"1K x 8","Core Size":"8-Bit","Peripherals":"LVD, PWM, WDT","Connectivity":"I²C, LINbus, SCI, SPI","Mounting Type":"Surface Mount","Number of I/O":"34","Core Processor":"S08","Package / Case":"44-LQFP","Data Converters":"A/D 10x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Program Memory Size":"16KB (16K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"44-LQFP (10x10)","Voltage - Supply (Vcc/Vdd)":"1.8V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.67","stockQuantity":28,"priceTiers":[{"qty":1,"price":"$7.67000","currency":"USD"},{"qty":10,"price":"$5.99300","currency":"USD"},{"qty":80,"price":"$4.91050","currency":"USD"},{"qty":800,"price":"$4.80731","currency":"USD"},{"qty":1600,"price":"$4.05436","currency":"USD"},{"qty":2400,"price":"$3.85165","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/3ae65e30f2292ebbc8e4be03a41a1852.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to MC9S08QE16CLD in the S08 family?","answer":"The S08 family includes several 44-LQFP variants with different Flash/RAM sizes (e.g., 32 KB or 64 KB Flash), but pin compatibility varies by the specific peripheral set and ADC channel count. Confirm the BOM position's pinout against the target variant's datasheet before substituting."},{"question":"What compliance documentation does NXP provide for MC9S08QE16CLD?","answer":"The device is ROHS3 compliant (ROHS3 Compliant). NXP provides a RoHS certificate of compliance and material declaration sheets through its standard documentation portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/nxp/MC9S08QE16CLD","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/nxp/MC9S08QE16CLD 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}}