{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MC9S08QE4CWL","brand":"NXP Semiconductors","brandSlug":"nxp","productSlug":"MC9S08QE4CWL","canonicalUrl":"https://icboms.com/nxp/MC9S08QE4CWL","factsUrl":"https://icboms.com/api/mcp/products/MC9S08QE4CWL","rawCanonicalId":null},"summary":{"shortDescription":"NXP Semiconductors S08 series 8-bit MCU, MC9S08QE4CWL, 20 MHz core, 4 KB Flash, 256 x 8 RAM, 28-SOIC package, -40°C to 85°C, 22 I/O, 10-channel 12-bit ADC.","salesMarkdown":"## 8-bit core with 4 KB Flash for cost-sensitive control The MC9S08QE4CWL: This combination targets simple control loops, sensor readout, and communication bridging where code footprint stays under 4 KB and a full 32-bit architecture would be overkill. The 28-SOIC package (7.50 mm body width) provides 22 general-purpose I/O lines, enough to handle a keypad matrix, a small character LCD, and a few discrete inputs without external port expansion. Surface-mount assembly keeps the board profile low for space-constrained enclosures. ## Peripheral set and analog front-end A 10-channel, 12-bit ADC converts analog sensor signals directly — thermistors, potentiometers, or current-shunt voltages — without an external converter. The internal oscillator eliminates the crystal and its load capacitors, saving two component placements and reducing BOM cost. On-chip peripherals include a low-voltage detect (LVD) for brown-out reset, a PWM module for LED dimming or small motor drive, and a watchdog timer (WDT) for system recovery. The connectivity block supports I²C, LIN bus, SCI (UART), and SPI, covering the common serial interfaces for industrial sensor networks and simple fieldbus nodes.","metaTitle":"NXP MC9S08QE4CWL S08 MCU, 8-bit, 20 MHz, 4 KB Flash, 28-SOIC","metaDescription":"NXP MC9S08QE4CWL 8-bit S08 MCU with 20 MHz core, 4 KB Flash, 256 B RAM, 10-ch 12-bit ADC, 22 I/O, -40°C to 85°C. Active production, sourced per RFQ.","metaKeywords":null},"attributes":{"series":"S08","packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Speed":"20MHz","Series":"S08","Package":"Bulk","RAM Size":"256 x 8","Core Size":"8-Bit","Peripherals":"LVD, PWM, WDT","Connectivity":"I²C, LINbus, SCI, SPI","Mounting Type":"Surface Mount","Number of I/O":"22","Core Processor":"S08","Package / Case":"28-SOIC (0.295\\\", 7.50mm Width)","Data Converters":"A/D 10x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Program Memory Size":"4KB (4K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"28-SOIC","Voltage - Supply (Vcc/Vdd)":"1.8V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.55","stockQuantity":0,"priceTiers":[{"qty":118,"price":"$2.55000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/ffe23202d74c8753c5bd35a36bbd578d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to MC9S08QE4CWL in the S08 family?","answer":"No official pin-compatible alternative or second-source is recorded for this order code. The S08 family includes higher-Flash variants (e.g., 8 KB, 16 KB) in the same 28-SOIC package, but the evidence does not confirm pin compatibility or a direct cross-reference. Confirm the BOM position's memory requirement before substituting."},{"question":"What compliance documentation does NXP provide for MC9S08QE4CWL?","answer":"The evidence does not list specific compliance certificates (RoHS, REACH, UL, IEC) for this order code. Standard NXP product documentation — datasheet, application notes, and material declaration — is available from the manufacturer. Verify compliance against your regional requirements at order time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/nxp/MC9S08QE4CWL","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/nxp/MC9S08QE4CWL when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}