{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MC9S08SH8CTJ","brand":"NXP Semiconductors","brandSlug":"nxp","productSlug":"MC9S08SH8CTJ","canonicalUrl":"https://icboms.com/nxp/MC9S08SH8CTJ","factsUrl":"https://icboms.com/api/mcp/products/MC9S08SH8CTJ","rawCanonicalId":null},"summary":{"shortDescription":"NXP Semiconductors S08 8-bit MCU, MC9S08SH8CTJ, 40MHz core, 8KB Flash, 512B RAM, 17 GPIO, 12x10b ADC, I2C/SCI/SPI/LIN, -40 to +85°C, 20-TSSOP, Tube.","salesMarkdown":"## 8KB Flash, 512B RAM, 40MHz — the S08 sweet spot for cost-sensitive control The MC9S08SH8CTJ: It carries 8KB of on-chip Flash program memory and 512 bytes of RAM — enough for a modest control loop, a communication stack, and a handful of state variables without external memory. The 17 general-purpose I/O lines give you room for a keypad matrix, a few indicator LEDs, and a sensor interface, while the 12-channel 10-bit ADC reads analog inputs directly — no external converter needed for most transducer signals. On-chip peripherals include a low-voltage detect (LVD) circuit that resets the MCU on a brownout, a power-on reset (POR) for clean startup, a PWM module for motor or LED dimming, and a watchdog timer (WDT) that catches runaway code — all standard safety netting for an embedded design that runs unattended. ## Serial interfaces and supply — what connects and what powers it The MC9S08SH8CTJ integrates I²C, SCI (UART), SPI, and LINbus serial interfaces — enough to talk to a temperature sensor over I²C, log data out a UART to a PC, or join an automotive LIN node. The LIN support is a differentiator in this class: it makes the part a candidate for a seat controller or a window-lift module without an external LIN transceiver on the MCU side. The wide range also means it can tolerate a 3.6V lithium cell as it sags — no separate regulator needed for the MCU in a battery-powered sensor node. For tighter timing, the part can still use an external clock source. ## 20-TSSOP footprint and temperature grade Housed in a 20-lead TSSOP (4.4mm body width, 0.65mm pitch), the MC9S08SH8CTJ fits on a two-layer board without heroic fan-out — the 0.65mm pitch is forgiving enough for hand-assembly rework in a prototype run. It handles an unheated equipment shed in winter and a warm control cabinet in summer without derating the clock speed or flash retention.","metaTitle":"NXP MC9S08SH8CTJ S08 MCU, 8KB Flash, 40MHz, 20-TSSOP","metaDescription":"NXP MC9S08SH8CTJ 8-bit MCU, S08 core at 40MHz, 8KB Flash, 512B RAM, 12-ch 10-bit ADC, I2C/SCI/SPI/LIN, -40 to +85°C, 20-TSSOP.","metaKeywords":null},"attributes":{"series":"S08","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Speed":"40MHz","Series":"S08","Package":"Tube","RAM Size":"512 x 8","Core Size":"8-Bit","Peripherals":"LVD, POR, PWM, WDT","Connectivity":"I²C, LINbus, SCI, SPI","Mounting Type":"Surface Mount","Number of I/O":"17","Core Processor":"S08","Package / Case":"20-TSSOP (0.173\\\", 4.40mm Width)","Data Converters":"A/D 12x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Program Memory Size":"8KB (8K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"20-TSSOP","Voltage - Supply (Vcc/Vdd)":"2.7V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.44","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$5.44000","currency":"USD"},{"qty":10,"price":"$4.25100","currency":"USD"},{"qty":100,"price":"$3.48310","currency":"USD"},{"qty":500,"price":"$3.40982","currency":"USD"},{"qty":1000,"price":"$2.87576","currency":"USD"},{"qty":2500,"price":"$2.73198","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/484687fde6411e2cbac7bf9c6d34c15c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What serial interfaces does the MC9S08SH8CTJ support?","answer":"It supports I²C, SCI (UART), SPI, and LINbus. The LINbus interface is notable for this class — it allows direct connection to an automotive LIN network without an external LIN transceiver on the MCU side."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/nxp/MC9S08SH8CTJ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/nxp/MC9S08SH8CTJ 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}}