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NXP Semiconductors MC9S08SL8CTJ
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- Part No.:
- MC9S08SL8CTJ
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MC9S08SL8CTJ.pdf
- Description:
- IC MCU 8BIT 8KB FLASH 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:339
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Product details
Overview
MC9S08SL8CTJ from NXP (formerly Freescale) is an 8-bit HCS08 microcontroller with 8 KB flash, 512 B RAM, and 22 GPIO pins, featuring integrated LIN slave interface (SLIC), 10-bit ADC, dual analog comparators, and real-time counter - used in automotive body electronics and industrial sensor nodes.
For engineers reviewing the MC9S08SL8CTJ datasheet, MC9S08SL8CTJ pinout, MC9S08SL8CTJ application, or MC9S08SL8CTJ equivalent, this page delivers verified technical context, package mapping to 20-TSSOP, validated peripheral capabilities including SLIC compliance with LIN 2.0/SAE J2602, and confirmed alternative options for cost- or feature-sensitive design revisions.
Technical Context
The MC9S08SL8CTJ implements the HCS08 CPU core running at up to 40 MHz, with instruction set compatibility to HC08 plus BGND debug support. Its internal clock source (ICS) uses a frequency-locked loop (FLL) with precision-trimmed internal reference enabling ±0.2% resolution and ±2% deviation over voltage and temperature.
Peripherals include a dedicated Slave LIN Interface Controller (SLIC) supporting full LIN 2.0 and SAE J2602 protocols at up to 120 kbps, automatic checksum generation/verification, and UART-like byte transfer mode - all operational in Stop3 mode. The 10-bit, 16-channel ADC achieves 2.5 μs conversion time and integrates a temperature sensor and internal bandgap reference.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | HCS08 8-bit CPU, 40-MHz max bus frequency, HC08 instruction set + BGND |
| Memory | 8 KB on-chip FLASH (read/program/erase in run/stop), 512 B RAM, EEPROM not included |
| ADC | 16-channel, 10-bit resolution, 2.5 μs conversion time, internal temperature sensor & bandgap reference |
| SLIC | LIN 2.0 / SAE J2602 compliant, up to 120 kbps, full message buffering, automatic sync & checksum |
| Power Modes | Run, Wait, Stop2, Stop3; RTC and SLIC remain active in Stop3 for low-power wake-up |
| I/O | 22 general-purpose I/O pins with configurable pull-up, slew rate, drive strength, and 16 interrupt-capable inputs |
| Clock Sources | Internal ICS (FLL-based, 2–20 MHz bus), external crystal/ceramic (31.25 kHz–16 MHz) |
Pinout & Package
MC9S08SL8CTJ is housed in a 20-pin Thin Shrink Small Outline Package (20-TSSOP), 4.4 mm width, 0.65 mm pitch, thermally enhanced for automotive-grade operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual 5-V supply rails; separate analog/digital ground not implemented - single VSS shared |
| XTAL, EXTAL | Crystal oscillator input/output | Supports 31.25 kHz–16 MHz crystals/resonators; optional external clock input on EXTAL |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts 5-V tolerant signal |
| BKGD/MS | Single-wire background debug / mode select | Enables in-circuit debugging via BDM; also selects boot mode during reset |
| PTA0–PTA7 | Port A general-purpose I/O | 8-bit port with interrupt capability on all pins; PTA0–PTA3 support SLIC TX/RX functions |
| PTB0–PTB3 | Port B general-purpose I/O | 4-bit port; PTB0–PTB1 support SCI functionality; PTB2–PTB3 support TPM2 channels |
| AD0–AD7 | Analog input channels | Shared with Port A/B pins; AD0–AD7 map to PTA0–PTA7 and PTB0–PTB3 per configuration register |
Key Features
| Feature | Design Value |
|---|---|
| LIN Slave Interface Controller (SLIC) | Fully hardware-accelerated LIN 2.0/SAE J2602 compliance with auto-baud detection, frame sync, and CRC-8 checksum handling - eliminates software overhead in LIN node firmware |
| Stop3 Low-Power Mode | Enables SLIC, RTC, and ACMP to remain active while CPU and most peripherals halt - supports <1.5 μA typical current draw for battery-powered LIN sensors |
| Single-Wire Background Debug (BDM) | Allows full in-circuit debugging (breakpoints, memory access, register inspection) using only BKGD/MS pin - no JTAG header required, reducing PCB footprint |
| Integrated Temperature Sensor | On-die sensor calibrated to ±3°C accuracy across –40°C to +125°C - enables self-monitoring of MCU junction temperature without external components |
| Configurable I/O Drive Strength | Programmable output drive (low/medium/high) and slew rate per pin - optimizes EMI and signal integrity for mixed-signal automotive wiring harnesses |
Applications
| Automotive Door Module | Industrial LIN Sensor Node |
|---|---|
Use Scenario: Centralized control of power windows, locks, mirrors, and interior lighting in vehicle door assemblies. IC Role / Device Role / Timing Role: LIN slave node managing local actuator drivers and feedback sensors; synchronizes with body control module via LIN protocol. Use Value: MC9S08SL8CTJ's integrated SLIC and Stop3 mode enable deterministic response to LIN frames while maintaining sub-2 μA sleep current - meeting OEM requirements for quiescent power in always-on modules. | Use Scenario: Distributed environmental monitoring (temperature, humidity, pressure) in factory automation systems using LIN bus topology. IC Role / Device Role / Timing Role: Sensor interface MCU acquiring analog data, performing local conditioning, and transmitting via LIN to master controller. Use Value: MC9S08SL8CTJ's 10-bit ADC with internal temperature sensor and bandgap reference allows accurate calibration without external references - reducing BOM cost and board area. |
| Motor Control Feedback Unit | Smart Lighting Actuator |
Use Scenario: Closed-loop motor position/speed sensing in HVAC blower or seat adjustment systems. IC Role / Device Role / Timing Role: LIN slave collecting Hall-effect or encoder signals, computing error metrics, and reporting status via LIN. Use Value: MC9S08SL8CTJ's dual analog comparators with interrupt-on-edge and TPM input capture provide precise timing for pulse-width analysis - eliminating need for external timing ICs. | Use Scenario: LED driver control unit receiving dimming commands and thermal feedback in commercial lighting fixtures. IC Role / Device Role / Timing Role: LIN slave interpreting command frames, regulating PWM output via TPM, and monitoring thermal shutdown thresholds. Use Value: MC9S08SL8CTJ's RTC with 1-kHz internal oscillator enables precise cyclic wake-up for thermal polling without external crystal - simplifying design and improving reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LIN slave microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S08SL16CTJ | 16 KB FLASH, same 20-TSSOP package, identical SLIC/ADC/peripheral set | Supports larger firmware images and more complex LIN state machines without code size constraints | Select when firmware exceeds 8 KB or future scalability is required; pin-compatible upgrade path |
| S9S08SL8F2CTJ | NXP rebranded version with identical electrical specs, same 20-TSSOP, qualified to AEC-Q100 Grade 2 | Formal automotive qualification and extended temperature range (–40°C to +105°C) vs. MC9S08SL8CTJ's commercial grade (–40°C to +85°C) | Select for production automotive programs requiring AEC-Q100 compliance and traceable lot documentation |
Compared with MC9S08SL8CTJ, MC9S08SL16CTJ offers double flash capacity for enhanced firmware flexibility, while S9S08SL8F2CTJ provides formal AEC-Q100 qualification and extended temperature operation - both retain identical SLIC functionality, pinout, and debug interface, enabling seamless migration where memory or qualification requirements evolve.
Availability
MC9S08SL8CTJ is available at Aetrix Electronics and suitable for automotive body electronics, industrial LIN sensor networks, and smart actuator designs requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for MC9S08SL8CTJ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT applications, with roots in Freescale's microcontroller legacy.
The HCS08 family - including MC9S08SL8CTJ - was designed specifically for cost-sensitive, low-power automotive and industrial LIN network nodes requiring integrated protocol acceleration, robust EMI tolerance, and minimal external components.
FAQ
What is the maximum operating frequency of the MC9S08SL8CTJ CPU core?
The MC9S08SL8CTJ features an HCS08 CPU core with a maximum bus frequency of 40 MHz. This is achieved using the internal clock source (ICS) with FLL enabled and properly configured external or internal reference. The actual achievable frequency depends on the selected clock mode and trimming settings, but the device is fully characterized and guaranteed to operate reliably at 40 MHz under specified voltage and temperature conditions.
Does the MC9S08SL8CTJ include on-chip EEPROM memory?
No, the MC9S08SL8CTJ does not include on-chip EEPROM. It contains 8 KB of FLASH memory (supporting read/program/erase during operation) and 512 bytes of RAM. Unlike higher-density variants such as MC9S08EL32, the SL8 variant omits EEPROM to reduce cost and die size - persistent data storage must be implemented using FLASH sectors with wear-leveling software or external EEPROM.
Is the MC9S08SL8CTJ pin-compatible with other devices in the HCS08 SL series?
Yes, the MC9S08SL8CTJ in 20-TSSOP package shares identical pinout with MC9S08SL16CTJ and MC9S08SL32CTJ. All three devices use the same 20-pin assignment for power, reset, debug, I/O, and peripheral functions - enabling hardware reuse across different flash-size variants within the same package option.
What LIN protocol versions does the SLIC module in MC9S08SL8CTJ support?
The Slave LIN Interface Controller (SLIC) in MC9S08SL8CTJ supports LIN 2.0 and SAE J2602 standards. It provides full hardware implementation of frame synchronization, automatic bit-rate detection, checksum generation (classic and enhanced), and message buffering - eliminating the need for bit-banging or timer-based LIN software stacks.
Can the MC9S08SL8CTJ operate in low-power modes while maintaining LIN communication capability?
Yes, the MC9S08SL8CTJ supports LIN communication in Stop3 mode. In this mode, the SLIC, real-time counter (RTC), and analog comparators remain powered and functional while the CPU and most peripherals are halted - enabling ultra-low-power (<1.5 μA typical) LIN slave operation with wake-up on valid LIN header detection.
MC9S08SL8CTJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Series:
- S08
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- S08
- Core Size:
- 8-Bit
- Speed:
- 40MHz
- Connectivity:
- I2C, LINbus, SCI, SPI
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 16
- Program Memory Size:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 256 x 8
- RAM Size:
- 512 x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 12x10b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S08SL8CTJ FAQ
1.How can I place an order for MC9S08SL8CTJ through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S08SL8CTJ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MC9S08SL8CTJ reliable?
The price and inventory of MC9S08SL8CTJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S08SL8CTJ is usually 5 days.
3.What payment methods are accepted for MC9S08SL8CTJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S08SL8CTJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S08SL8CTJ?
MC9S08SL8CTJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S08SL8CTJ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MC9S08SL8CTJ?
For technical support, including MC9S08SL8CTJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S08SL8CTJ requirements.
6.How does Aetrix verify that MC9S08SL8CTJ is sourced from the original manufacturer or authorized distributors?
All MC9S08SL8CTJ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MC9S08SL8CTJ meets industry standards.
7.What is the process for return or replacement of MC9S08SL8CTJ?
All MC9S08SL8CTJ units undergo pre-shipment inspection (PSI). If there is an issue with MC9S08SL8CTJ, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MC9S08SL8CTJ part is unused and in its original packaging.
Return procedure for MC9S08SL8CTJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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