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NXP Semiconductors MC9S08PL8CTJ
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- Part No.:
- MC9S08PL8CTJ
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MC9S08PL8CTJ.pdf
- Description:
- IC MCU 8BIT 8KB FLASH 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,069
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Product details
Overview
MC9S08PL8CTJ from NXP Semiconductors is an 8-bit S08 microcontroller with 8 KB flash, 2 KB RAM, and 256 B EEPROM, operating up to 20 MHz across –40 °C to +85 °C. It integrates a 10-bit 12-channel ADC, dual SCI (LIN-capable), I²C, two FTM modules (6+2 channels), RTC, and analog comparator - deployed in industrial sensor nodes and motor control interfaces.
For engineers reviewing the MC9S08PL8CTJ datasheet, MC9S08PL8CTJ pinout, MC9S08PL8CTJ application, or MC9S08PL8CTJ equivalent, this page delivers verified electrical specs, validated package mapping to 20-pin TSSOP, confirmed peripheral configurations, and real-world use context for embedded control design.
Technical Context
The MC9S08PL8CTJ implements an S08 CPU core with four-level nested interrupt support and on-chip ICE debug module enabling single-wire background debugging. Its clock system combines an external crystal oscillator (31.25 kHz–20 MHz) and internal ICS with FLL, delivering ±2% frequency accuracy over –40 °C to +85 °C.
System protection includes independent watchdog with dedicated clock, low-voltage detection with programmable trip points (2.56 V–4.4 V), illegal opcode/address reset, and flash/RAM access protection. Power management supports Stop3 mode with 1.3 µA typical current and peripheral clock gating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | 8-bit S08 CPU, up to 20 MHz bus frequency at 2.7–5.5 V |
| Memory | 8 KB flash (read/program/erase over full voltage/temp), 2 KB RAM, 256 B EEPROM with 2-byte erase sector |
| ADC | 12-channel, 10-bit resolution, 2.5 µs conversion time, internal bandgap reference, stop-mode operation |
| Timers | Two FTM modules (6-channel + 2-channel), 8-bit modulo timer, 16-bit RTC |
| Communication | Two SCI (LIN-capable), one I²C (400 kbps), CRC module |
| Supply Current | 1.35 µA typical in Stop3 mode (5 V), 5.95 mA typical in Wait mode (20 MHz, 5 V) |
| Operating Range | –40 °C to +85 °C ambient, 2.7 V to 5.5 V supply voltage |
Pinout & Package
MC9S08PL8CTJ is housed in a 20-pin Thin Shrink Small Outline Package (TSSOP) with 0.65 mm pitch, optimized for compact industrial PCB layouts and reflow-compatible assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply | Main digital supply input (2.7–5.5 V); decoupling required per datasheet layout guidelines |
| VSS | Ground | Digital ground reference; separate analog ground (VSSA) not present in this variant |
| PTA0/KBI0P0/FTM0CH0/ACMP0/ADP0 | Multi-function I/O | Configurable as keyboard interrupt input, FTM channel 0 output, analog comparator input, or ADC channel 0 |
| PTA1/KBI0P1/FTM0CH1/ACMP1/ADP1 | Multi-function I/O | Supports same peripheral functions as PTA0 but on second channel |
| PTA2/KBI0P2/RxD0/SDA1 | True open-drain I/O | Operates as true open-drain when used as output; compatible with I²C bus pull-up requirements |
| PTA3/KBI0P3/TxD0/SCL1 | True open-drain I/O | True open-drain output for I²C clock line; also serves as SCI0 transmit |
| PTA4/ACMPO/BKGD/MS | Output-only debug pin | Background debug interface signal; output-only when configured as port pin; critical for BDM entry |
| PTA5/IRQ/TCLK0/RESET | Interrupt/reset input | Active-low reset with internal pullup; also accepts external interrupt or timer clock input |
| PTA6/ADP2 | Analog input | Dedicated ADC channel 2 input; shares pin with port A bit 6 |
| PTA7/ADP3 | Analog input | Dedicated ADC channel 3 input; shares pin with port A bit 7 |
| PTB0/KBI0P4/RxD0/ADP4 | Multi-function I/O | SCI0 receive, keyboard interrupt, or ADC channel 4 input |
| PTB1/KBI0P5/TxD0/ADP5 | Multi-function I/O | SCI0 transmit, keyboard interrupt, or ADC channel 5 input |
| PTB2/KBI0P6/ADP6 | Multi-function I/O | Keyboard interrupt or ADC channel 6 input |
| PTB3/KBI0P7/ADP7 | Multi-function I/O | Keyboard interrupt or ADC channel 7 input |
| PTB4/FTM2CH4 | Timer output | FlexTimer 2 channel 4 output; supports PWM, input capture, or output compare |
| PTB5/FTM2CH5 | Timer output | FlexTimer 2 channel 5 output; complements PTB4 for complementary PWM generation |
| PTB6/SDA/XTAL | Oscillator input | Crystal oscillator input (XTAL); also functions as I²C data line when oscillator disabled |
| PTB7/SCL/EXTAL | Oscillator input | External clock input (EXTAL); also functions as I²C clock line when oscillator disabled |
| VREFH / VREFL | Analog reference | ADC reference voltage inputs; internally tied to VDD/VSS if external reference unused |
| VDDA / VSSA | Analog supply | Separate analog power and ground pins; must be decoupled independently from digital supply |
Key Features
| Feature | Design Value |
|---|---|
| Flash endurance | 100,000 program/erase cycles with data retention >20 years at 85 °C |
| ADC watermark buffering | Automatically triggers interrupt when buffer reaches user-defined fill level, reducing CPU polling overhead |
| Stop3 mode power efficiency | 1.35 µA typical current with RTC and LPO active enables battery-powered operation for months |
| I²C SMBus/PMBus support | Programmable slave address, broadcast mode, and 10-bit addressing simplify multi-device system integration |
| Single-wire BDM interface | Enables full in-circuit debugging with only BKGD/MS and RESET pins - no JTAG header required |
| Peripheral clock gating | Individual enable/disable of clocks to unused modules reduces dynamic power without software complexity |
Applications
| Industrial Sensor Node | Motor Control Interface |
|---|---|
Use Scenario: Compact environmental monitoring unit measuring temperature, humidity, and pressure via analog sensors and digital I²C peripherals. IC Role / Device Role / Timing Role: Central controller executing sensor acquisition, local calibration, LIN communication to host, and low-power sleep scheduling. Use Value: Integrated 10-bit ADC with internal bandgap reference eliminates external precision references; Stop3 mode extends battery life beyond 12 months. |
Use Scenario: Brushless DC motor driver board requiring commutation timing, fault monitoring, and UART-based configuration. IC Role / Device Role / Timing Role: Real-time commutation sequencer using FTM PWM outputs and ADC feedback sampling synchronized to motor rotation. Use Value: Dual FTM modules provide six PWM outputs with dead-time insertion and edge-aligned modes - sufficient for 3-phase inverter control without external logic. |
| Smart HVAC Actuator | Embedded Power Supply Monitor |
Use Scenario: Thermostat-controlled damper actuator with position sensing, thermal protection, and wireless gateway interface. IC Role / Device Role / Timing Role: Position feedback processor using analog comparator for limit switch detection and SCI for Modbus RTU communication. Use Value: On-chip analog comparator with independent rising/falling edge interrupts replaces discrete comparator circuitry, saving BOM cost and board space. |
Use Scenario: Rack-mounted power supply unit monitoring rail voltages, fan speed, and temperature with fault logging. IC Role / Device Role / Timing Role: System supervisor performing periodic ADC measurements, LVD threshold checking, and nonvolatile event logging to EEPROM. Use Value: 256 B EEPROM with 2-byte erase sectors enables robust fault history storage without wear leveling firmware overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S08PL16CTJ | 16 KB flash, identical 20-pin TSSOP package, same peripheral set and pinout | Supports larger firmware images and more complex control algorithms without hardware change | Select when future firmware growth or additional feature integration is anticipated |
| S9KEAZ128AMLH | Kinetis E-series ARM Cortex-M0+, 128 KB flash, 16 KB RAM, different architecture and pinout | Requires full PCB redesign and firmware porting; offers higher performance and advanced peripherals (USB, CAN) | Choose only for new designs targeting long-term scalability beyond 8-bit constraints |
Compared with MC9S08PL16CTJ, the MC9S08PL8CTJ provides identical peripheral functionality and footprint at lower memory cost - ideal for cost-sensitive, fixed-feature applications. Versus S9KEAZ128AMLH, it avoids architectural migration complexity while meeting deterministic real-time response needs in resource-constrained systems.
Availability
MC9S08PL8CTJ is available at Aetrix Electronics and suitable for industrial sensor nodes, motor control interfaces, smart HVAC actuators, and embedded power supply monitors requiring stable component supply across extended product lifecycles.
Supply support for MC9S08PL8CTJ 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 specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in microcontroller architecture and embedded security.
The MC9S08PL8CTJ belongs to NXP's S08PL family - designed specifically for cost-optimized, low-power industrial control applications where deterministic real-time response, integrated analog peripherals, and long-term supply stability are critical.
FAQ
What is the maximum operating frequency of the MC9S08PL8CTJ?
The MC9S08PL8CTJ supports a maximum bus frequency of 20 MHz across its full operating voltage range (2.7 V to 5.5 V) and temperature range (–40 °C to +85 °C). This frequency is achieved using either the internal ICS with FLL or an external crystal oscillator, with the FLL trimmed to maintain ±2% accuracy over temperature.
Does the MC9S08PL8CTJ support in-circuit debugging?
Yes, the MC9S08PL8CTJ includes a single-wire background debug interface (BKGD/MS pin) with on-chip ICE debug module supporting three breakpoints and nine trigger modes. This enables full in-circuit debugging without requiring a dedicated JTAG header, simplifying PCB layout and reducing system cost.
How much EEPROM does the MC9S08PL8CTJ include, and what is its erase granularity?
The MC9S08PL8CTJ includes 256 bytes of user EEPROM with 2-byte erase sectors. This allows fine-grained nonvolatile data updates - such as calibration coefficients or fault logs - without erasing larger blocks, minimizing write latency and extending EEPROM endurance beyond 100,000 cycles.
Can the MC9S08PL8CTJ operate in low-power modes while maintaining RTC functionality?
Yes, the MC9S08PL8CTJ supports Stop3 mode with the 1 kHz LPO clock active, enabling the 16-bit RTC to continue counting with typical current consumption of 1.35 µA at 5 V. The RTC retains timekeeping accuracy during deep sleep, making it suitable for battery-backed timestamping in remote sensor nodes.
What ADC features are available on the MC9S08PL8CTJ?
The MC9S08PL8CTJ integrates a 12-channel, 10-bit successive-approximation ADC with 2.5 µs conversion time, internal bandgap reference, optional hardware trigger, automatic compare function, and data buffers with configurable watermark interrupt. It operates fully in Stop mode, enabling precise low-power sensor sampling.
MC9S08PL8CTJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Series:
- S08
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- S08
- Core Size:
- 8-Bit
- Speed:
- 20MHz
- Connectivity:
- LINbus, SCI, UART/USART
- Peripherals:
- LVD, POR, PWM
- Number of I/O:
- 18
- Program Memory Size:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 256 x 8
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 10x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S08PL8CTJ FAQ
1.How can I place an order for MC9S08PL8CTJ through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S08PL8CTJ 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 MC9S08PL8CTJ reliable?
The price and inventory of MC9S08PL8CTJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S08PL8CTJ is usually 5 days.
3.What payment methods are accepted for MC9S08PL8CTJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S08PL8CTJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S08PL8CTJ?
MC9S08PL8CTJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S08PL8CTJ 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 MC9S08PL8CTJ?
For technical support, including MC9S08PL8CTJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S08PL8CTJ requirements.
6.How does Aetrix verify that MC9S08PL8CTJ is sourced from the original manufacturer or authorized distributors?
All MC9S08PL8CTJ 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 MC9S08PL8CTJ meets industry standards.
7.What is the process for return or replacement of MC9S08PL8CTJ?
All MC9S08PL8CTJ units undergo pre-shipment inspection (PSI). If there is an issue with MC9S08PL8CTJ, 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 MC9S08PL8CTJ part is unused and in its original packaging.
Return procedure for MC9S08PL8CTJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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